检索结果-南通市图书馆

A new Kaurane Derivative from Aralia Fargesii

在线全文

学校读者我要写书评

暂无评论

chinese Chemical Letters 1999年第8期10卷 673-674页

作者： Yu Mei ZHANG Jun Shan yang Xu Dong XU (institute of medicinal {3. Development, chinese academy of medical Science peking union medical college, Beijing 100094) peking union Med Coll Chinese Acad Med Sci Inst Med Plant Dev Beijing 100094 Peoples R China

A new ent-kaurane diterpene was isolated from the rhizome of Aralia fargesii. On the basis of chemical and spectral evidences, its structure was established as 16 alpha-hydroxy-17-isovaleroyloxy-ent-kauran-19-oic acid.

关键词： Aralia fargesii ent-kaurane 16 alpha-hydroxy-17-isovaleroyloxy-ent-kauran-19-oic acid

Cypripediquinone A, a new phenanthraquinone from Cypripedium macranthum (Orchidaceae)

在线全文

学校读者我要写书评

暂无评论

chinese Chemical Letters 2000年第1期11卷 37-38页

作者： Jian Hua JU Jun Shan yang Jin LI Pei Gen XIAO (institute of medicinal {3. Development. chinese academy of medical sciences and peking union medical college, Beijing 100094) chinese Acad Med Sci Inst Med Plant Dev Beijing 100094 Peoples R China peking union Med Coll Beijing 100094 Peoples R China

A new phenanthraquinone, cypripediquinone A, was isolated from the rhizome of Cypripedium macranthum ( Orchidaceae ) and its structure was established as 2,4,7-trimethoxy-9, 10- phenanthraquinone mainly by spectroscop... 详细信息

关键词： Cypripedium macranthum cypripediquinone A

Molecular pharmacognosy

在线全文

学校读者我要写书评

暂无评论

Science China(Life sciences) 2010年第6期53卷 643-652页

作者： HUANG LuQi1,XIAO PeiGen2,GUO LanPing1 & GAO WenYuan3.1institute of chinese Materia Medica,China academy of chinese medical sciences,Beijing 100700,China 2institute of medicinal plant Development,chinese academy of medical sciences,peking union medical {13.,Beijing 100094,China 3.chool of Pharmaceutical Science and Technology,Tianjin University,Tianjin 3.0072,China 1. institute of chinese Materia Medica China Academy of Chinese Medical Sciences Beijing 100700 China2. Institute of Medicinal Plant Development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100094 China3. School of Pharmaceutical Science and Technology Tianjin University Tianjin 300072 China

This article analyzes the background and significance of molecular pharmacognosy,including the molecular identification of medicinal raw materials,phylogenetic evolution of medicinal plants and animals,evaluation and preservation of germplasm resources for medicinal plants and animals,etiology of endangerment and protection of endangered medicinal plants and animals,biosynthesis and bioregulation of active components in medicinal plants,and characteristics and the molecular bases of top-geoherbs.

关键词： molecular pharmacognosy pharmacognosy borderline subject

THE　ISOLATION　AND　CHEMICAL　STRUCTURE　OF　ISOANNONARETICINS，A　PAIR　OF　2－EPIMERS　FROM　ANNONA　RETICULATA（ANNONACEAE）

在线全文

学校读者我要写书评

暂无评论

chinese Chemical Letters 1996年第1期7卷 19-22页

作者： Jing’Guang YU and Dong LIU(institute of medicinal plant Development, {3. andpeking union medical college, Beijing 100094) Inst. of medicinal plant Development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100094

A new acetogenin 2,4ets-cis-isoannonareticin (2-1) (2,4-cis-bullatacinone) and a known bullatacinone (2,4--trans-isoannonareticin) (2-2) were a pair of isomersepimeric at C-2 which were isolated as two pure natural compounds from Annonareticulata L. by using preparative TLC. Their structures and the relativestereochemistry were elucidated on the basis of the spectral analysis.

关键词： DENSICOMA ANNONACEAE ACETOGENINS POLYKETIDES BULLATA

New Flavonoid Glycoside from Thalictrum przewalskii

在线全文

学校读者我要写书评

暂无评论

chinese Chemical Letters 1999年第4期10卷 295-296页

作者： Shi Chun YU Qing Li WU Li wei WANG Pei Gen XIAO(institute of medicinal {3. Development, chinese academy of medical sciences and peking union medical college, Beijing 100094.) chinese Acad Med Sci Inst Med Plant Dev Beijing 100094 Peoples R China peking union Med Coll Beijing 100094 Peoples R China

A new flavonoid glycoside, 5, 7-dihydroxy-4'-methoxyflavonoid 7-Q-[6-O-(4-O-acetyl-alpha-L-rhamnosyl)-3.O-beta-D-glucosyl]-6-O-acetyl-beta-D-glucoside was isolated from Thalictrum przewalskii. Its structure was determ... 详细信息

关键词： Thalictrum Thalictrum przewalskii flavonoid glycoside 5, 7-dihydroxy-4 '-methoxyflavonoid 7-O-[6-O-(4-O-acetyl-alpha-L-rhamnosyl)-3.O-beta-D-glucosyl]-6-O-acetyl-beta-D-glucoside

Erythrinarbine,a Novel nor-A ring Erythrina Alkaloid from Erythrina arborescens

在线全文

学校读者我要写书评

暂无评论

chinese Chemical Letters 1999年第2期10卷 139-142页

作者： Dong Lei YU Jian GUO Li Zhen XU Shi Lin yang(institute of medicinal {3. Development, chinese academy of medical sciencesand peking union medical college, Beijing 100094) chinese Acad Med Sci Inst Med Plant Dev Beijing 100094 Peoples R China peking union Med Coll Beijing 100094 Peoples R China

Erythrinarbine 2, a novel alkaloid was isolated from the stem of Erythrina arborescens Roxb. Its structure and stereochemistry were elucidated on the basis of the spectral analysis (C-13.- H-1 COSY, H-1-H-1 COSY, NOES... 详细信息

关键词： Erythrina arborescens erythrinarbine nor-A ring erythrina alkaloid

New Phloroglucinol Glycosides from Hypericum japonicum

在线全文

学校读者我要写书评

暂无评论

chinese Chemical Letters 1998年第5期9卷 469-470页

作者： Qing Li WU Sheng Ping WANG Li wei WANG Jun Shan yang Pei Gen XIAO(institute of {3. plant Development, chinese academy of medical sciencesand peking union medical college, Bejing 100094) chinese Acad Med Sci Inst Med Plant Dev Beijing 100094 Peoples R China peking union Med Coll Beijing 100094 Peoples R China

Two new phloroglucinol glycosides, 2,6-dihydroxy-3.5-dimethyl-1-isobutyrylbenzene-4-O-beta-D-glucoside and 2,6-dihydroxy-3.5-dimethyl-1-(2-methylbutyryl) benzene-4-O-beta-D-glucoside were isolated from Hypericum japon... 详细信息

关键词： Hypericum japonicum Guttiferae phloroglucinol glycoside 2-methyl-1-(2,6-dihydroxy-3.5-dimethylphenyl)-1-propanone-4-O-beta-D-glucoside 2-methyl-1-(2,6-dihydroxy-3.5-dimethyl phenyl)-1-butanone-4-O-beta-D-glucoside

Muricatenol, a Linear Acetogenin from Annona muricata (Annonaceae)

在线全文

学校读者我要写书评

暂无评论

chinese Chemical Letters 2000年第3期11卷 239-242页

作者： De Yu LI Jing Guang YU Xiu Zhen LUO Lan SUN Shi Lin yang (institute of medicinal {3. Development. chinese academy of medical sciences and peking union medical college. Beijing 100094) chinese Acad Med Sci Inst Med Plant Dev Beijing 100094 Peoples R China peking union Med Coll Beijing 100094 Peoples R China

Muricatenol 1, a new acetogenin, has been isolated from the seeds of Annona muricata L.. Compound 1 is a C-3. acetogenin without any THF rings. with four hydroxyls and one double bond in the long aliphatic chain. The hydroxyls of 1 are located at C-4, C-10, C-18 and C-19. respectively. The vicinal diet at C-18/C-19 is threo-configuration, and the double bond at C-14/C-15 is cis-configuration.

关键词： Annona muricata Annonaceae acetogenins muricatenol

Crystal Structure of Loliolide (5, 6,7a-Tetrahydro-6-hydroxy-4, 4, 7a-trimethyl-2 (4H)-benzofuranones)

在线全文

学校读者我要写书评

暂无评论

chinese Journal of Structural Chemistry 1997年第5期16卷 335-337页

作者： CHEN Jing-Yu CHEN Jian-Min XIAO Pei-Gen(institute of medicinal plant Development, the {3.,peking union medical college, Beijing 100094)WU Nan LU yang(institute of Materia Medica, the {3.,P Inst. of medicinal plant Development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100094 China institute of Materia Medica Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100050 China

The structure of the title compound, which was isolated fromClinopodium polycephalum (Vant.) by C. Y. Wu et Hsuan, has been determined byX-ray diffraction analysis. C11H16O3. Mr= 196. The crystal belongs to the monoclinicspace group P21 with a= 6. 072 (3., b=11. 682 (5), c= 7. 865 (4) A, β= 109. 61(4)°, V=525. 5(4) , Z= 2, F(000) =212, Dc= 1.23. g/cm3. μ=0.08 *** structure was solved by direct methods and refined to R=0. 048 for 616 observedreflections. The molecule is composed of a six-membered ring and a five-membered lactone ring with a methyl and a hydroxy group at the two asymmetrical carbons locatedon the same side of the nucleus.

关键词： clinopodium polycephalum lolioide crystal structure antitumor activity