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SYNTHESIS OF PEG-DENDRIMERIC PEPTIDE

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chinese Chemical Letters 1996年第8期7卷 693-694页

作者： De Xin WANG and Lei HUANG(institute of materia medica, chinese academy of medical sciences and Peking Union medical College,beijing 100050) chinese ACAD MED SCI INST MAT MEDBEIJING 100050PEOPLES R CHINA beijing UNION MED COLL BEIJING 100050PEOPLES R CHINA

Synthesis of a new macromolecule with MW up to 7.6 KDA is described in the present paper. The ligation between a dendrimeric amino-PEG and unprotected peptides via a site- specific reaction is a useful trial for the p... 详细信息

关键词： PEG SYNTHESIS OF PEG-DENDRIMERIC PEPTIDE

Studies on the Preparation of Bioactive Oligomerstilbene by Oxidative Coupling Reaction(Ⅰ)-Preparation of Shegansu B using Silver Oxide as Oxidant

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chinese Chemical Letters 2000年第6期11卷 515-516页

作者： Li Xin ZHOU Mao LIN(institute of materia medica，chinese academy of medical sciences，Peking Union medical College, beijing 100050) institute of materia medica Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100050 China

篢he oxidative coupling reaction of isorhapontigenin using sliver oxide as oxidant afforded a major product, named shegansu B（2）， which was isolated from the roots of Belamcanda chinensis (L．)DC. Both the natural ... 详细信息

关键词： Isorhapontigenin oligomerstilbene shegansu B oxidative coupling reaction silver oxide

Lactariolide,a New 14-Membered-Ring Compound from Lactarius Subvellereus

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chinese Chemical Letters 1997年第2期8卷 135-136页

作者： Jing ZHANG xiao Zhang FENG(institute of materia medica, chinese academy of medical sciences and Peking Union medical College, beijing, 100050) chinese ACAD MED SCI INST MAT MEDBEIJING 100050PEOPLES R CHINA beijing UNION MED COLL BEIJING 100050PEOPLES R CHINA

Lactariolide (I), a new 14-membered-ring lactone was isolated from the fruit bodies of Lactarius subvellereus (Russulaceae), and its structure was elucidated as (R)-13-hydroxy-trans-9, 11-octadecadienoic acid lactone ... 详细信息

关键词： Cl Lactariolide,a New 14-Membered-Ring Compound from Lactarius Subvellereus

Synthesis of New 1,6-disubstituted Fulvenes

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chinese Chemical Letters 1996年第10期7卷 881-883页

作者： Hu xiao Shu Feng CHEN and xiao tian LIANG(institute of materia medica, chinese academy of medical sciences, beijing, 100050) chinese ACAD MED SCI INST MAT MEDBEIJING 100050PEOPLES R CHINA

Sixteen new 1,6-disubstituted fulvenes have been prepared by acylation of cyclopentadienyl sodium and the result of preliminary pharmacological tests showed that several of them have antineoplastic activity.

关键词： Synthesis of New 1 6-disubstituted Fulvenes

Studies on Chemical Constituents of Belamcanda Chinensis(L.)DC.(Ⅱ)

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chinese Chemical Letters 1997年第2期8卷 133-134页

作者： Li Xin ZHOU and Mao LIN(institute of materia medica,chinese academy of medical sciences,Peking Union medical College.beijing, 100050) institute of materia medica Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100050 China

Nine compounds were isolated from the acetone soluble fraction of ethanolic extract of the roots of Belamcanda chinensis (L.)DC. The structure of new compound I,named shegansu A,has been established as irigenin-5-O-(6'-O-vanillin acid)-β-D-glucoside(Ⅰ) by the use of spectroscopic evidence (UV, IR. FAB-MS.1HNMR, 13CNMR,1H-13CNMR and NOE difference spectrum) and chemical *** well known compounds were identified as isorhapotigenin (Ⅲ),resveratrol(Ⅳ), P-hydroxy benzoic acid (Ⅴ), iridin (Ⅵ), tectoridin (Ⅶ),tectorigenin(Ⅷ) and daucosterol(Ⅸ). Ⅲ-Ⅸ were isolated from the plant for the first time.

关键词： DC OCH

The Synthesis of Aromatic Hydrazones as Nitrogen-Containing Prostaglandin Congeners

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chinese Chemical Letters 1998年第6期9卷 529-531页

作者： Guo Hao XIE Yan Mei HE Yuan Liu WU(institute of materia medica, chinese academy of medical sciences, beijing 100050) chinese Acad Med Sci Inst Mat Med Beijing 100050 Peoples R China

We synthesized a series of hydrazones, a novel type of nitrogen-containing prostaglandins, from different aromatic hydrazines and variant 2-substituted amino-3-hydroxy bicycle [3.2.0]hept-6-ones IV.

关键词： aromatic hydrazine hydrazone nitrogen-containing prostaglandin

Total Synthesis of (±)-Cordatolide A and its Anti-HIV Activity

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chinese Chemical Letters 1999年第8期10卷 653-656页

作者： Qi GAO Lin WANG xiao tian LIANG (institute of materia medica, Peking Union medical College & chinese academy of medical sciences, beijing 100050) institute of materia medica Peking Union Medical College Chinese Academy of Medical Sciences Beijing 100050 China

The natural product (±)-cordatolide A has been synthesized by a four-step approach starting from phloroglucinol, including Pechmann reaction, Friedel-Crafts acylation, cyclization. chromenylation and Luche reduction.

关键词： Total synthesis (±)-cordatolide A

Study of Intramolecular Cyclization of N-styryl-oxo-cinnamides (Ⅱ)

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chinese Chemical Letters 1998年第3期9卷 235-236页

作者： Nian Chun MA Ke Mei WU and Liang HUANG(institute of materia medica chinese academy of medical sciences,Peking Union medical College, beijing 100050) chinese Acad Med Sci Inst Mat Med Peking Union Med Coll Beijing 100050 Peoples R China

The preparations and intramolecular cyclizations of amides 5, (N-methyl-N-(2 - trans-2-phenylethenyl)-3-phenyl-2, 3-cis-oxiranecarboxamide) and 8, (N-methyl-N-(2-cis-2-phenylethenyl ) - 3 -pheny 1-2, 3 - cis -oxiranec... 详细信息

关键词： intramolecular cyclization cis-oxirane cis-ene trans-ene

The Chemical Reactions of 11-Hydroxycephalotaxine

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chinese Chemical Letters 2000年第6期11卷 489-492页

作者： Chuan Pin ZOU Ke Mei WU Liang HUANG (institute of materia medica, chinese academy of medical sciences,Peking Union medical College, beijing 10050) chinese Acad Med Sci Peking Union Med Coll Inst Mat Med Beijing 10050 Peoples R China

Some of the chemical reactions of 11-hydroxycephalotaxine 1, which were encountered during the derivation of 1 and the related compounds were reported.

关键词： 11-hydroxycephalotaxine structural modification