New iridoids from Gelsemium species.
نویسندگان
چکیده
Four new iridoids structurally related to gelsemide (5) were isolated from two Loganiaceous plants, Gelsemium elegans and G. rankinii. Among them, GEIR-1 (1) has a novel tetracyclic caged structure.
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ورودعنوان ژورنال:
- Chemical & pharmaceutical bulletin
دوره 56 6 شماره
صفحات -
تاریخ انتشار 2008