Sesquiterpene pyridine alkaloids from Hippocratea excelsa
Phytochemistry
2002.0
Abstract
Nineteen sesquiterpene pyridine alkaloids including 17 new compounds have been isolated from the 70% aq. EtOH extract of stem barks of Hippocratea excelsa. The structures of these compounds were elucidated by various spectroscopic means.