Three new sesquiterpenes: 4-acrylic-6-methyl-α-tetralone (1), ainsliaea acid A (2) and ainsliaea acid B (3), together with 8 known compounds (4-11) were isolated from the whole herb of Ainsliaea glabra and their structures were established by means of 1D and 2D NMR spectroscopy and HR-ESIMS.
BACKGROUND
Ainsliaea fragrans Champ. (A. fragrans) is a traditional Chinese herbal that contains components like 3,5-dicaffeoylquinic acid and 4,5-dicaffeoylquinic acid. It exhibits anti-inflammatory activities which has been used for the treatment of gynecological diseases for many years in China.
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