undang-undang republik indonesia no 19 tahun 2002...
TRANSCRIPT
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
UNDANG-UNDANG REPUBLIK INDONESIA
NO 19 TAHUN 2002 TENTANG HAK CIPTA
Pasal 72
KETENTUAN PIDANA
SANGSI PELANGGARAN
1. Barangsiapa dengan sengaja dan tanpa hak melakukan perbuatan
sebagaimana dimaksud dalam Pasal 2 ayat (1) atau Pasal 49 ayat (1)
dan ayat (2) dipidana dengan pidana penjara masing-masing paling
singkat 1 (satu) bulan dan/atau denda paling sedikit Rp 1.000.000,00
(satu juta rupiah), atau pidana penjara paling lama 7 (tujuh) tahun
dan/atau denda paling banyak Rp 5.000.000.000,00 (lima miliar
rupiah).
2. Barangsiapa dengan sengaja menyiarkan, memamerkan, mengedarkan,
atau menjual kepada umum suatu Ciptaan atau barang hasil
pelanggaran Hak Cipta atau Hak Terkait sebagaimana dimaksud pada
ayat (1) dipidana dengan pidana penjara paling lama 5 (lima) tahun
dan/atau denda paling banyak Rp 500.000.000,00 (lima ratus juta
rupiah).
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
ISBN : 978-602-73435-0-4
PROCEEDING
The 3rd International Seminar on Chemistry 2014
Innovation and Advances in Chemistry for The 21st Century Challenges
Organized by: Department of Chemistry Faculty of Mathematics and Natural Sciences Padjadjaran University In cooperation with Indonesian Chemical Society
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
Welcoming Address by the Organizing Committee
Honorable Rector of Universitas Padjadjaran Distinguished invited speakers, participants, ladies and gentlemen,
It is our great pleasure to welcome all the honorable guests, the distinguished guest and all the
participants to the 3rdtriennial International Seminar on Chemistry (ISC) 2014, here in Jatinangor, the small town you might never heard before. We are particularly happy that this
seminar has been organized to celebrate the 57th anniversary of Universitas Padjadjaran and as
a continuation of the previous ISC in 2008 and ISC 2011, we are organizing a seminar with invited speaker from various international scientific institutes. We believe that the 3rdISC 2014
meeting will be a place where the recent 21stcentury advances and innovations in chemistry can
be discussed and shared, not to mention issues emerged can be brought to light so all participants will be concerned and can contribute to solve the issues. We hope this seminar will
bring communication and cooperation in educational and research activities with the support
and collaboration of Indonesian Chemical Society, nongovernmental organizations, research institutions and scientific associations both in Indonesia and overseas.
This event will offer a comprehensive understanding on how to optimize the utilization of natural
resources through the knowledge of chemistry. It will cover topics, among others, not only associated with innovation in analytical methods, techniques and instrumentations, innovation
in material chemistry and nanotechnology, natural product chemistry and organic synthesis,
biomolecular sciences and biotechnology, information technology in chemical sciences and computational chemistry, environmental and green chemistry, and chemical education.
As a chairperson, we are very proud to report that today, the international seminar is attended by more than 300 participants, come from all overAustralia, Indonesia, Japan and Malaysia. We
invite 2 Indonesian invited speakers, and 7 foreign invited speakers come from Australia,
Germany, Japan, Malaysia, The Netherlands, and USA. There are 99 papers to be presented orally and 87 papers presented by poster covering wide-variety subjects of chemistry and its
application. We hope this event will open scientific discussions of the new findings particularly
toward “the role of chemistry in the utilization of natural resources” and followed by better understandings, formal and non-formal cooperation and also opportunities to explore further
collaboration among participants.
We would like to express our appreciation to all invited speakers, and contributed lecturer who are willing to share their knowledge, experiences, and advices in this event. We thank our
sponsor for their support to this event. Finally, we would also like to thank Rector of Universitas
Padjadjaran for his support to this seminar.
We hope you will enjoy a pleasant and valuable seminar at Universitas Padjadjaran.
Dr. rer.nat. Iwan Hastiawan
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
Remarks by Head of Indonesian Chemical Society
Distinguished guests, all invited speakers, participants, ladies and gentlemen,
It is a great pleasure for me on behalf of the Indonesian Chemical Society to welcome you at
the 3rd International Seminar on Chemistry 2014 this morning here at the Auditorium of the Center for Japanese Language Study, Jatinangor Campus, Padjadjaran University. Chemistry as
a science discipline is rapidly growing and embracing other sciences. This means that chemists
should always update their recent chemical knowledge and information they acquired. Therefore, this International Seminar on Chemistry has a special importance for us, particularly
for Indonesian chemical society, primarily as it shows our endeavour in chemical research and
development, appropriate for our unique demands, and secondly as it provides means to
exchange information and experiences, particularly with regard to the chemistry progress and other related matters including international cooperation.
Distinguished guests, ladies and gentlemen, I hope that you will gain a lot of benefits from the fruitful discussion during the seminar. I would
like to express my expression to the Organizing Committee of the seminar. I am indeed
delighted and thank you for all your effort and hard working for making this seminar happened.
To all distinguished guests from abroad and from other cities in Indonesia, enjoy your stay in
Jatinangor and have a nice time.
Head, Indonesian Chemical Society
Dr. Muhamad Abdulkadir Martoprawiro
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
Opening remarks by Rector of Universitas Padjadjaran
Honorable invited speakers, and all participants of the 3rd International Seminar on Chemistry
2014.
First of all, on behalf of Universitas Padjadjaran, please allow me to extend my warmest
welcome. I am much honored to be the host of this event which is organized as one of activities
in celebrating the 57th anniversary of Universitas Padjadjaran.
This seminar will cover topic “Innovations and Advances In Chemistry for The 21st Century
Challenges”. As we all aware, chemistry is the science that studies atoms and molecules along with their properties. All matter is composed of atoms and molecules, so chemistry is all
encompassing and is referred to as the central science because all other scientific fields use its
discoveries.
We all know that investigating materials and devices at the nanoscale level has become the
topic of discussion in our daily life even at the dinner table. The behavior of nanoscale materials
is close to atomic behavior rather than that of bulk materials. This leads to vivid properties and well-defined concepts, even though the description of these properties can be understood in
terms of quantum mechanics, which provides only a fuzzy picture.
On the other hand medicinal chemistry has evolved from the chemistry of bioactive compounds
in early days to works at the interface of chemistry and biology nowadays. Medicinal chemistry
of bioactive natural products spans a wide range of fields, including isolation and characterization of bioactive compounds from natural sources, structure modification for
optimization of their activity and other physical properties, and total and semi-synthesis for a
thorough scrutiny of structure activity relationship. In addition, synthesis of natural products also provides a powerful means in solving supply problems in clinical trails and marketing of the
drug, for obtaining natural products in bulk amounts is often very difficult.
Knowing that committee has selected outstanding speakers from various prestigious institutions, I believe that all participants will enjoy the discussion of the issues covered by the
topic of this seminar. I hope this meeting will serve as an excellent opportunity for all of us to
discuss views, trends, exchange knowledge, establish links and lead us to the right direction while stepping in the next future with green chemistry.
I would like to express my appreciation to all invited speakers and participants, and last but not least my deep thanks to the organizing committee for their efforts to make this seminar
happened which will enrich Basic Scientific Pattern of Universitas Padjadjaran i.e. “Nurturing
Law and Environment”.
I wish all of you have a nice stay and inspiring meeting in our university.
Rector,
Prof. Ganjar Kurnia
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
Committees
Steering Committee Prof. Dr. Ganjar Kurnia (Rector of Universitas Padjadjaran)
Prof. Dr. Engkus Kuswarno (Vice Rector for Academic Affairs)
Prof. Dr. Rina Indiastuti (Vice Rector for Finance Affairs) Dr. dr. med. Setiawan (Vice Rector for Cooperation Affairs)
Prof. Dr. Ir. Roni Kastaman (Vice Rector for Infrastructure)
Prof. Dr. Budi Nurani R. (Dean of Faculty of Mathematics and Natural Sciences) Dr. Muhammad A. Martoprawiro (Head of Indonesian Chemical Society)
Scientific Committee
Prof. Dr. Husein H. Bahti Prof. Dr. Ukun M.S. Soedjanaatmadja
Prof. Dr. Toto Subroto
Prof. Dr. Unang Supratman Prof. Dr. Soetijoso Soemitro
Prof. Dr. Roekmi-ati Tjokronegoro
Prof. Dr. O. Suprijana Prof. Dr. Rustam E. Siregar
Prof. Dr. J. J. Beintema (University of Groningen - The Netherlands)
Prof. Dr. Hideo Hayashi (Osaka Prefecture University - Japan)
Organizing Committee
Chairperson : Dr. rer.nat. Iwan Hastiawan
Vice chairperson : Juliandri, Ph.D Secretary : Dr. Diana Rakhmawaty Eddy
Dr. Tri Mayanti
Dr. Shabarni Gaffar Titin Sofyatin, M. S.
Kiki Maesaroh, A. Md.
Registration : Dr. Yeni Wahyuni H Haryono, M.T
Shanty Wyantuti, M.Si
Satriadi, S.T Treasurer : Drs. Agus Safari, M.Si
Dr. Desi Harneti PH
Dr. Rani Maharani Yusi Deawati, M.Si
Ida Nurfarida, S.Si
Ai Rohayati
Publication : Dr. Rustaman Dr. Atiek Rostika Noviyanti,M.Si
Allyn P. M.T.
Uji Pratomo, M.Si Program : Dr. Tati Herlina
Dr. Euis Julaeha
Dr. Anni Anggraeni Dr. Iman Permana Maksum
Dr. Iman Rahayu
Dr. A. Muthalib Dr. Khomaini Hasan
Logistics : Dr. Dikdik Kurnia
Dr. Solihudin
Dr. Dadan Sumiarsa Nenden H., M.S
Hendi Asikin
Ajat Exhibition : Christi L. Natanael, M.S
Diana Hendrati, M.S
Ika Wiani, M.S Dr. Rubiyanto
Rukiah, M.T
Sponshorship : Dr. Darwati
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
Ace Tatang Hidayat, M.Si
Dr. A. Zainudin
Dr. E. Ernawaty
Food and Beverages : Sadiah Djajasoepena, M.Si Saadah Diana R., M.S
Yati B. Yuliyati, M.S
Nurlelasari, M.Si Supporting team : Chemistry Student Association
(HIMAKA Universitas Padjadjaran)
Editor : Uji Pratomo, M.Si
Dr. Tati Herlina
Dr. Atiek Rostika
Cover Design : Uji Pratomo, M.Si
Layout : Uji Pratomo, M.Si
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
TABLE OF CONTENT
Welcoming Address by the Organizing Committee .............................Error! Bookmark not defined.
Remarks by Head of Indonesian Chemical Society ..............................Error! Bookmark not defined.
Opening remarks by Rector of Universitas Padjadjaran ......................Error! Bookmark not defined.
Committees .........................................................................................Error! Bookmark not defined.
Table Of Content .................................................................................Error! Bookmark not defined.
Invited Speaker ...................................................................................Error! Bookmark not defined.
From Donor-Acceptor Complexes to Gallium Nitride Nanorods ......Error! Bookmark not defined.
Henry F Schaefer
Roles of TMEPAI/PMEPA1 in Cancer Progression ............................Error! Bookmark not defined.
Mitsuyasu Kato, Yukihide Watanabe, Thanh Thao Vo Nguyen, Riezki Amalia
Selective tumour-targeting with biomolecule–chemotherapeutics conjugates... Error! Bookmark
not defined.
Stefan Richter, Wilma Neumann, Menyhárt B. Sárosi, Imola Sárosi, Verena Ahrens, David
Böhme, Annette G. Beck-Sickinger, Evamarie Hey-Hawkins
Transaminases as tools for the synthesis of chiral amines ...............Error! Bookmark not defined.
A.C. Terwisscha van Scheltinga, C.C. van Oosterwijk& B.W. Dijkstra
Strategies in Bacterial Production of Recombinant Human Thrombinfor Its Use as a Fibrin
Sealant Component..........................................................................Error! Bookmark not defined.
Toto Subroto, Iman Permana Maksum, Saronom Silaban, Khomaini Hasan,Shabarni-Gaffar,
Sutarya Enus, Soetijoso Soemitro
Deproteinized Natural Rubber (DPNR) ProductionFrom The Latex Of Hevea brasiliensis MUELL
ARG With Enzymatic Method ...........................................................Error! Bookmark not defined.
R. Ukun MS Soedjanaatmadja, Dewi Astrid, Inky Febrianty, Ade Sholeh Hidayat, Ace Tatang
Hidayat, Iman Permana Maksum, Iman Rahayu, Saadah Diana Rachman, Safri Ishmayana
The Utilization of Unlimited Sunlight Energy to Sustain Our Better and Safe Environment by the
Hybridization of Artificial Photosynthesis of Ti-oxide Based Photocatalysts and Photosynthesis of
Green Vegetables in the Plant Factory ............................................Error! Bookmark not defined.
Masakazu ANPO
Novel and Bioactive Chemicals from Malaysian Plants ....................Error! Bookmark not defined.
Khalijah Awang
Small molecule fluorine chemistry: applications in organic synthesis, specialised materials and
medicinal chemistry .........................................................................Error! Bookmark not defined.
Roger W. Read
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
Contributed Paper .............................................................................. Error! Bookmark not defined.
Modification of Natural Silica with PEG 4000 as The Stationary Phase for The Analysis Of
Caffeine by HPLC .............................................................................. Error! Bookmark not defined.
Budhi Oktavia, Desy Kurniawati, Edi Nasra, Mayora Primanelide
Chitin Extraction From Shrimp Shells By Deproteinization Using Papain ....... Error! Bookmark not
defined.9
Yuli Rohyami, Reni Banowati Istiningrum, Ida Sulistyaningrum, Nur Isnaini
Uncertainty Measurement in the Analysis of Wastewater Chemical Oxygen Demand at
Integrated Laboratory of Islamic University of Indonesia ................ Error! Bookmark not defined.
Thorikul Huda, Septian Andriwibowo, Ida Ayu Sulistya
Preparation of Composite Apatite La9.33Si6O26 (LSO) - Zr0.85Y0.15O1.925 (YSZ) .... Error! Bookmark not
defined.
Ferli S. Irwansyah, Sahrul Hidayat, Dani Gustaman Syarif, and Atiek Rostika Noviyanti
Characterization of Nickel(II) Coordination Polymers with 2,4,5-triphenyl-1H-imidazole Ligand
......................................................................................................... Error! Bookmark not defined.
Fawait Afnani, Fahimah Martak
Kinetics of Dehydrochlorination Process Reaction Between Dichloropropanol and Sodium
Hydroxide ......................................................................................... Error! Bookmark not defined.
Herliati, Robiah Yunus,, Lubena, Yeti Widyawati
Study for Corrosion Inhibition of Mild Steel in Acid Media by Carboxymethyl Chitosan/Amylose
Fraction Composite .......................................................................... Error! Bookmark not defined.
Maria Erna, Jimmi Copriady and Herdini
Synthesis Mg3,1Al0,45Fe0,25Ce0,3 Hydrotalcite Doped with Hydrothermal and Coprecipitation
method : Different calcination temperature .................................... Error! Bookmark not defined.
Mochamad Zen, Dadan Sumiarsa, Roekmi-ati Tjokronegoro, Rustam E. Siregar
Chemical Soil Characteristics Affected By Incubation Time Of Organic Hydrogel In Ultisols .. Error!
Bookmark not defined.
Mulyani, O, Suriadikusumah, A, Salim, .H.E
Synthesis and Characterization Of Nio Nanoparticles By Sol-Gel And Sonochemical Methods
......................................................................................................... Error! Bookmark not defined.
Sherly Kasuma Warda Ningsih
Investigation of Surfactant Anionic Effect on Morphology and Performance of Cellulose acetate-
Polystyrene Nanofiltration Membrane for Desalination .................. Error! Bookmark not defined.
Sri Mulijani
Isolation and Characterization of Triterpenoid Compoundfrom Indonesian Sarang-Semut Plant
Tubers (Myrmecodia pendans Merr. & L.M. Perry) ......................... Error! Bookmark not defined.
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
Hilmana Radhia Putera, Dikdik Kurnia, Dadan Sumiarsa
The Study on The Effect of Phytochemical Properties in Aloe vera Extract To Oral Candida in
Cancer Survivor ................................................................................Error! Bookmark not defined.
Indah Suasani Wahyuni, Elizabeth Fitriana Sari, Trinugroho Heri Fadjari
Antioxidant Activity And Bioactive Component Of Ethanolic Extract Of Basil (Ocimumbasilicum
L.) Seed After Fractionation .........................................................................................................80
Dede Sukandar, Sandra Hermanto, Adawiyah, Eka Rizki Amelia and Chitta Putri Noviani
Evaluation of fucoidan bioactivity asanti-gastriculcers in mice ........Error! Bookmark not defined.
Ellya Sinurat, Rosmawaty P
Fracture Pattern of Controlled Groundwater Flow in the Volcanic System Case Study in
Ciherang, West Java, Indonesia ....................................................................................................89
Cipta Endyana, Hendarmawan, Emi Sukiyah, Irwan Ari Dharmawan, Faisal Helmi
Coolant Wastewater Treatment From Rest of Milling Aluminium Production at Indonesian
Aerospace Ltd. With Electrocoagulasi Method ................................Error! Bookmark not defined.
Saptadi Fadjatmiko
The Effectivenees of Laboratory Experiment Method to Increase Activity and Student’s
Achievement on Teaching Salt Hydrolysis ........................................Error! Bookmark not defined.
Ramlan Silaban, Agustina ML Tobing , Irving Josafat Alexander
Application Method Of Inquiry In Improving Student Learning Chemistry Class XI SMA Sains In
Jayapura City ....................................................................................Error! Bookmark not defined.
Tiurlina Siregar
Effect of Dehydration in Making Time Permanent Supply Aedes aegypti Larvae . Error! Bookmark
not defined.
Anita Oktari, Yati Supriatin, Ridha Robbi Amanati
Separation Of Alkaloid Compounds From Fruit Of Mahkota Dewa (Phaleria macrocarpa Boerl.)
Using Liquid Chromatography ..........................................................Error! Bookmark not defined.
Diana Hendrati
Determination Of Chrom Hexavalent (Cr(VI)) from Electroplating Waste Using
Spectrophotometry ..........................................................................Error! Bookmark not defined.
Euis Yuliani, Suryatmana Tanuwijaya, Yusuf Akhyar Bahtiar
Myristicin Isolation Of Nutmeg (Myristica Fragrans Hout) With Hexane Extraction Method Error!
Bookmark not defined.
Korry Novitriani and Tanendri Arrizqiyani
Adsorption of Carbon Black Using Chitosan in Deinking Process .....Error! Bookmark not defined.
Muryeti, Estuti Budi Mulyani, Elya Sinurat
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
Synthesis of Mg/Al Hydrotalcite by Sol-Gel and Coprecipitation Methods .... Error! Bookmark not
defined.
Puji Kurniawati, Tri Esti Purbaningtias, Bayu Wiyantoko, Is Fatimah
The Chitosan Synthesis And Characterization Of Tutut Shell (Bellamya Javanica van den Bush) as
Anti Microbial .................................................................................. Error! Bookmark not defined.
Meti Kusmiati, Korry Novitriani, Ummy Mardiana
Antibacterial Potency of AC Kuningan’s Sweet Potato (Ipomea batatas) on Eescherichia coli
Bacteria ............................................................................................ Error! Bookmark not defined.
Abdul Muis, Ilah Nurlaelah
Application of Trunk of Heart-leaved Moonseed Extract as an Intercalating Agent of DNA
Visualization ..................................................................................... Error! Bookmark not defined.
Adhitya Sukma Trijaya, Tri Aminingsih, Ade Heri Mulyati
Comparison Study of Three Different Polymerase Amplifying Breast Cancer HER-2 Gen For PCR-
Based Diagnostic Applications Purpose ........................................... Error! Bookmark not defined.
Desriani
Peat Water Purification By Absorption With Baggase Charcoal ....... Error! Bookmark not defined.
Halida Sophia, Akmal Mukhtar, Patricia Lucky Yoseva
Limonoids from the seed of Chisocheton macrophyllus (Meliaceae) ……………………………………..170
Nulelasari, Desi Harneti, Moelyono Moekti Wardoyo, Unang Supratman, and Khalijah Awang
Authors Index .................................................................................. Error! Bookmark not defined.76
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
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The 3rd International Seminar on Chemistry Innovations and Advances in Chemistry for the 21st Century Challenges
Jatinangor, 20-21 November 2014
Limonoids from the seed of Chisocheton macrophyllus (Meliaceae)
Nulelasari1, Desi Harneti
1, Moelyono Moekti Wardoyo
2,
Unang Supratman1*
, and Khalijah Awang3
1Department of Chemistry, Faculty of Mathematics and Natural Sciences,
Padjadjaran University, Jatinangor 45363, Indonesia 2Faculty of Pharmacy, Padjadjaran University, Jatinangor 45363, Indonesia
3Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 59100, Malaysia
Abstract
The Chisocheton genus, a member of the Meliaceae family, contains approximately 50 species that are mainly distributed in India, Thailand, Malaysia and Indonesia. Chisocheton macrophyllus is a higher plant and found growing in the rain
forest in northern part of Sulawesi Island, Indonesia. In this communication, we describe the isolation and structure
elucidation of a new limonoid dysobinol (1), with known limonoid, dysobinin (2) from the seed of the Chisocheton
macrophyllus (Meliaceae). Their structures were elucidated by extensive spectroscopic methods including 1D- (1H, 13C and DEPT) and 2D-NMR (1H-1H COSY, HMQC and HMBC) experiments as well as HR-ESI-TOFMS analysis.
Keywords: Dysobinol, Dysobinin, limonoid, Chisocheton macrophyllus, Meliaceae
1. Introduction
The Chisocheton genus, a member of the Meliaceae family, contains approximately 50 species that are
mainly distributed in India, Thailand, Malaysia and Indonesia [1,2]. The genus Chisocheton is a subtropical
and tropical plant family widely known for its insecticidal limonoid constituents [3]. Previous phytochemical
studies on Chisocheton species have yielded a number of interesting compounds, including limonoids [4,5],
antifungal meliacin-type compound [6], dammarane triterpenoids [7], and spermidine alkaloids [8]. As part
of our studies on novel compounds from Indonesia Meliaceae plants [9,10], we carried out a study on
Chisocheton macrophyllus. C. macrophyllus is a higher plant and found growing in the rain forest in
northern part of Sulawesi Island, Indonesia [2,11].
The plant is known as a Ma-aa in Indonesia, and the seed oil from this plant is used in
Indonesian for lighting [12]. Its leaves have been reported to yield dammarane
triterpenoids [7], but the seeds of this plant has never been phytochemically investigated.
In this communication, we describe the isolation and structure elucidation of one new
limonoid (1) along with known limonoid (2) from the seed of C. macrophyllus. Their
structures were elucidated by extensive spectroscopic methods including 1D- (1H,
13C and
DEPT) and 2D-NMR (1H-
1H COSY, HMQC and HMBC) experiments as well as HR-ESI-
TOFMS analysis. 2. Materials and Methods
2.1. General experimental procedures
Melting points were measured on a Fisher-John micro melting point apparatus and are
uncorrected. Optical rotations were recorded on a ATAGO AP-300 automatic polarimeter.
The IR spectra were recorded on a Perkin-Elmer spectrum-100 FT-IR in KBr. Mass spectra
were obtained with a JEOL JMS-700 and a SynaptG2 mass spectrometer instruments. 1H-
and 13
C-NMR spectra were obtained with a JEOL JNM A-500 spectrometer using TMS as
internal standard. Chromatographic separations were carried out on silica gel 60 (Merck).
PTLC glass plates were precoated with silica gel GF254 (Merck, 0.25 mm). TLC plates
were precoated with silica gel GF254 (Merck, 0.25 mm) and detection was achieved under