A new ursane-type triterpenoid, 3 beta-hydroxy-urs-30-p-Z-hydroxycinnamoyloxy-12- en-28-oic-acid (1), together with three known triterpenoids, 3 beta-hydroxy-urs-30-p-E-hydroxycinnamoyloxy-12-en-28-oic-acid (2), 2 alpha, 3 beta, 19 alpha-trihydroxy-urs-12-en-28-oic-acid (3), and ursolic acid (4), four known lignans, pinoresinol (5), 9 alpha-hydroxypinoresinol (6), (+)-medioresinol (7), and (+)-kobusin (8), and two steroids, beta-sitosterol (9), and daucosterol (10), were isolated from the whole parts of Teucrium viscidum. Their structures were established by a combination of spectroscopic data analysis, besides comparison with literature data. Compounds 1-4 were evaluated for their inhibitory activities against 11 beta-hydroxysteroid dehydrogenase 1 (11 beta-HSD1).
基金:
National Natural Science Foundation of China [81202423]; Science Foundation for the Excellent Youth Scholars, Health Department of Hubei Province, China [QJX2010-2]; Scientific Research Foundation for the Returned Oversea Chinese Scholars, State Education Ministry of China [2010-1561-40th]; Program for New Century Excellent Talents in University [NCET-2008-0224]; National Innovation Experiment Program for University Students, Huazhong University of Science and Technology