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Chinese Chemical Letters 2002年第9期13卷 818-819页

作者： Liang XU Min XIA jun chao cai Shanghai Institute of Materia Medica Chinese Academy of SciencesShanghai 200031

Reaction of simple dialkyl phosphites with symmetrical 1,3,5-trisubstituted hexahydro- triazines (HHTs) in the presence of benzyl chloride, afforded tertiaryaminomethylphosphonates in excellent yields. Glyphosate, a-... 详细信息

关键词： Glyphosate a-aminomethylphosphonate 1,3,5-hexahydrotriazine dialkylphosphite.

A Simple Synthesis of dl-Shikonin

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Chinese Chemical Letters 2002年第2期13卷 113-114页

作者： Qun LU Wen Hu DUAN jun chao cai Shanghai Institute of Materia Medica SIBSChinese Academy of SciencesShanghai 200031

A new facile route for the synthesis of dl-shikonin is presented. Reformatsky reaction assisted cross-coupling of 1, 4, 5, 8-tetramethoxynaphthalene-2-carbaldehyde and ethyl- bromoacetate was employed for introductio... 详细信息

关键词： Synthesis dl-shikonin Reformatsky reaction.

A new facile synthesis of shikalkin

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Chinese Chemical Letters 2008年第2期19卷 172-174页

作者： Qun Lu Hao Lun Tang Yan Qiang Shao jun chao cai Department of Bioengineering Southwest Jiaotong University Chengdu 610031 China Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 200031 China

A short and convergent approach for the synthesis of shikalkin （dl-shikonin） is presented. Stobbe reaction was employed to construct the aromatic skeleton 6. This is followed by a practical method to prepare the key... 详细信息

关键词： Synthesis Shikalkin Epoxides

Synthesis of Cytotoxic Sinapyl Alcohol Derivatives fromLigularia nelumbifolia

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Chinese Chemical Letters 2002年第3期13卷 201-204页

作者： Yu ZHAO Wei LU Xiao Jiang HAO jun chao cai Hong YU DepartmentofNaturalDrugResearch CollegeofPharmaceuticalSciencesZhejiangUniversityHangzhou310031

Total synthesis of two cytotoxic natural products, nelumol A (1) and nelumal A (2), were carried out by two different paths. 4-O-Benzyl substitute analogues 26 and 27, as well as the 4-O-(2-methyl-butenyl) derivative... 详细信息

关键词： Natural products cytotoxicity total synthesis SAR pharmaceutical chemistry sinapyl alcohol derivatives.

Total Synthesis of (±)-Nocardione A and (±)-Nocardione B, Two Cdc25B Tyrosine Phosphatase Inhibitors

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Chinese Chemical Letters 2001年第10期12卷 883-886页

作者： Hai YANG Wei LU Jian Xiong BAO Haji Aker AISA jun chao cai Shanghai Institute of Materia Medica SIBSChinese Academy of SciencesShanghai 200031 Xinjiang Institute of Chemistry Chinese Academy of SciencesUrumqi 830011

Two new naphthoquinones, nocardione A and B isolated from strain P-A0248, were synthesized from naphtho[1,2-b]furan 1. The furan 1 was prepared from 5-methoxyl-1-naphthol.

关键词： Synthesis nocardione A nocardione B.

Total Synthesis of Przewaquinone A

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Chinese Chemical Letters 1997年第3期8卷 205-206页

作者： Wen Hu DUAN jun chao cai (Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 200031) CHINESE ACAD SCI SHANGHAI INST MAT MEDSHANGHAI 200031PEOPLES R CHINA

Przewaquinone A, a natural orthoquinone was synthesized through several steps, the analytic data of the synthetic target compound was identical with that of przewaquinone A.

关键词： HRMS HNMR Total Synthesis of Przewaquinone A

A Novel Acetyl Migration

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Chinese Chemical Letters 1998年第7期9卷 619-620页

作者： Xi Han WU A. A. Haji Wei LU jun chao cai (Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 200031) Chinese Acad Sci Shanghai Inst Mat Med Shanghai 200031 Peoples R China

In our effort to asymmetric synthesis of R-(+)-shikonin, a novel acetyl migration was found, and the mechanism of the migration was considered to be mediated by a 6 atom-ring intermediate.

关键词： acetyl migration intermediate

Synthesis of the (3R, 9S, 10S)-Diastereoisomer of Panaxytriol,a Potent Antitumor Polyacetylene from Panax ginseng

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Chinese Chemical Letters 1999年第3期10卷 201-204页

作者： Wei LU Guang Rong ZHENG Jing Shan SHEN jun chao cai(Shanghai Institute of Materia Medica Chinese Academy of Sciences, Shanghai 200031) Chinese Acad Sci Shanghai Inst Mat Med Shanghai 200031 Peoples R China

(3R, 9S, 10S)-Heptadec-1-ene-4,6-diyne-3, 9, 10-triol 2, a diastereoisomer of panaxytriol 1 was synthesized using L-(+)-diethyl tartrate 5 as a chiral template, through the Cadiot-Chodkiczwicz coupling of the terminal... 详细信息

关键词： diastereoisomer panaxytriol Cadiot-Chodkiczwicz coupling

Synthesis of 3(R)-(t-Butyldiphenylsilyloxy)-1-penten-4-yne, via an Improved Procedure for Aldehyde-to-Alkyne Homologation

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Chinese Chemical Letters 1998年第7期9卷 621-623页

作者： Wei LU Guang Rong ZHENG A. A.HAJI jun chao cai(Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 200031) Chinese Acad Sci Shanghai Inst Mat Med Shanghai 200031 Peoples R China

3(R)-(t-Butyldiphenylsilyloxy)-1-penten-4-yne was prepared using D-xylose as the chiral template via an improved procedure for aldehyde-to-alkyne homologation in high yield.

关键词： 3(R)-(t-Butyldiphenylsilyloxy) 1-penten-4-yne aldehyde-to-alkyne homologation

STUDIES ON THE CRINUM ALKALOIDS PART I: SYNTHESIS OF ANHYDROLYCORINE-7-ONE

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Chinese Chemical Letters 1996年第1期7卷 13-14页

作者： Hua Wu SHAO jun chao cai (Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 200031) Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 200031

Palladium acetate catalyzed Cyclization of 1-[(6-bromo-1, 3 -benzodioxol- 5-yl)carbonyl 2, 3-dihydro-1H-indole(7a) leading to the anhydrolycorine- 7-one (1a) as the key step inanew Synthesis of Crinum alkaloids is de...

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