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期刊论文

Immunosuppressive constituents from Saussurea medusa

段宏泉Hongquan Duan a Yoshihisa Takaishi a* Hiroshi Momota b Yasukazu Ohmoto b Takao Taki b

Phytochemistry 59(2002)85~90,-0001,():

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摘要/描述

The methanol extract of Saussurea medusa Maxim afforded two lignans: 2a-guaicyl-4-oxo-6a-catechyl-3,7-dioxabicyclo [3.3.0]octane and 1a-hydroxy-2a,4a-guaicyl-3,7-dioxabicyclo[3.3.0]octane; two chlorophyll derivatives: 13-epi-phaeophorbide-a and 13-epi-phaeophorbide-a methyl ester; one megastigmane derivative: 3b-hydroxy-5a,6a-epoxy-7-megastigmen-9-one, along with 19 known compounds. Their structures were established on the basis of spectroscopic studies.

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