Phytochemistry p. 2547 - 2552 (1983)
Update date:2022-07-29
Topics:
Sakakibara, Jinsaku
Kaiya, Toyo
From Rhododendron japonicum were isolated two diterpene glucosides, pieroside B and grayanoside B, and two new triterpenes, 2α,3α,24-trihydroxyurs-12-en-28-oic acid and 2α,3α,19,24-tetrahydroxyurs-12-en-28-oic acid, whose structures were established by chemical and spectroscopic means.Key Word Index - Rhododendron japonica; Ericaceae; diterpene glucoside; triterpene; pieroside B; grayanoside B; asiatic acid; 2α,3α,24-trihydroxyurs-12-en-28-oic acid; 2α,3α,19,24-tetrahydroxyurs-12-en-28-oic acid.
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