Submitted:
13 October 2017
Posted:
13 October 2017
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Abstract
One new cassane diterpene possessing an unusual N bridge between C-19 and C-20 named caesalsappanin R (1), as well as another new diterpene caesalsappanin S (2), were isolated from the seeds of Caesalpinia sappan with methanol extract. Their structures were determined by spectroscopic analysis and examined alongside existing data from prior studies. Their biological activities were profiled by their antiplasmodial activity.
Keywords:
Caesalpinia sappan
; cassane diterpenes
; N bridge
; antimalarial activity
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