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2005年07月13日

【期刊论文】Coumarins and bicoumarin from Ferula sumbul: anti-HIV activity and inhibition of cytokine release

段宏泉, Ping Zhou a, Yoshihisa Takaishi a, *, Hongquan Duan a, Bei Chen a, Gisho Honda b, Michiho Itoh b, Yoshio Takeda c, Olimjon K. Kodzhimatovd, Kuo-Hsing Leee

Phytochemistry 53(2000)689~697,-0001,():

-1年11月30日

摘要

The methanol extract of the dried roots of Ferula sumbul a

Ferula sumbul, Umbelliferae, Coumarin, Bicoumarin, Fesumtuorin

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2005年07月13日

【期刊论文】Triterpenoids from Tripterygium wilfordii

段宏泉, Hongquan Duan a, Yoshihisa Takaishi a, *, Hiroshi Momota b, Yasukazu Ohmoto b, Takao Taki b, Yongfeng Jia c, Duan Li c

Phytochemistry 53(2000)805~810,-0001,():

-1年11月30日

摘要

The extract (TII) of Tripterygium wilfordii Hook f. afforded four triterpenoids: wilforic acid D (3b,24-epoxy-2a-hydroxy-24R*-ethoxy-29-friedelanoic acid); (E) 3b,24-epoxy-2-oxo-3a-hydroxy-29-friedelanoic acid; (F) 2b-hydroxy-3-oxo-friedelan-29-oic acid; 29-hydroxy-3-oxo-olean-12-en-28-oic acid and 17 known triterpenoids. Their structures were established on the basis of spectroscopic studies. In a bioactivity analysis, only the known dulcioic acid compound showed a signi

Tripterygium wilfordii, Triterpenoids, Immunosuppressive activity

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2005年07月13日

【期刊论文】Sesquiterpene evoninate alkaloids from Tripterygium hypoglaucum

段宏泉, Hongquan Duan, Yoshihisa Takaishi*

Phytochemistry 52(1999)1735~1738,-0001,():

-1年11月30日

摘要

Esters of three new (hyponines D

Tripterygium hypoglaucum, Celastraceae, Root bark, Sesquiterpenes, Pyridine alkaloids, Hyponine

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2005年07月13日

【期刊论文】DI- AND TRITERPENOIDS FROM TRIPTER YGIUM HYPOGLA UCUM

段宏泉, HONGQUAN DUAN, KAZUYOSHI KAWAZOE, MASAHIKO BANDO*, MASARU K]DO* and YOSHIHISA TAKAISHI†

Ph.vtochemistry, Vol. 46, No.3, pp. 535~543, 1997,-0001,():

-1年11月30日

摘要

The methanol extract of dried root outer bark of Tripterygium hypoglaucum (Levl.) Hutch afforded five new triterpenes: 2,3-seco-2,24-epoxy-D:A-friedoolenane-2, 24-olide-29-oic acid named celastolide, 2,23-dihydroxy-3-methoxy-6-oxo-l,3,5(10), 8-tetraene-24-nor-D:A-friedoolenane-29-oic acid, 2-hydroxy-3-methoxy-6-oxo-l,3,5(10), 8-tetraene-24-nor-D:A-friedoolenane-29-oic acid, 2,3-dihydroxy-l,3,5(10), 8-tetraene-24-nor-D: A-friedoolenane-29-oic acid and 3fl, 11 e-dihydroxy- 13(18)-ene-oleanane named triptohypol A, B and C and hypodiol, and two new diterpenes: 3/3,14,19-trihydroxy-abieta-8,11,13-triene and 7-oxo-I 1,13-dihydroxy- 19(4-3)-abeo-abieta-3,8,11,13-tetraene-19,18-olide named triptobenzene J and K. and 18 known compounds. Their structures were established on the basis of chemical and spectroscopic studies.

Tripterygium hypoglaucum, Celastraceae, triterpene, diterpene: celastolide, triptohypol, hypodiol.,

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2005年07月13日

【期刊论文】Limonoids from Citrus sudachi

段宏泉, Hiroyuki NAKAGAWA, Hongquan DUAN, and Yoshihisa TAKAISHI*

Chem. Pharm. Bull. 49(5)649~651 (2001),-0001,():

-1年11月30日

摘要

Four new limonoid derivatives, l-O-methylichangensin (I), sudachinoid A (2), B (3), and C (4) were isolated from the seeds of Citrus sudachi, together with the known compounds ichangensin, obacunone, obacunoic acid and limonin, and the structures of the new compounds were elucidated based on spectroscopic and chemical evidence.

Citrus sudachi, Rutaceae, limonoid, sudachinoid

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    天津医科大学,天津

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