Chemical Constituents of Salvia przewalskii Maxim.

摘要

In order to investigate the biologically active constituents of the Salvia przewalskii Maxim., a new diterpenoid, named isoganxinonic acid A (1), together with γ-linolenic acid (2), tanshinol B (3), cryptotanshinone (4), paeoniflorin (5), protocatechualdehyde (6), protocatechuic acid (7), caffeic acid (8), rosmarinic acid (9) and salvianolic acid B (10), were isolated from 50 % ethanol extract of the roots and rhizomes of S przewalskii and their structures were identified by MS and NMR spectra. Compound 5 was reported from Labtatae for the first time.