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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
The methanol extract of the dried roots of Ferula sumbul a
Ferula sumbul, Umbelliferae, Coumarin, Bicoumarin, Fesumtuorin
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【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
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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【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
Esters of three new (hyponines D
Tripterygium hypoglaucum, Celastraceae, Root bark, Sesquiterpenes, Pyridine alkaloids, Hyponine
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【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
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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【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
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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