New Humulenes from Hyptis incana (Labiatae)
2013 ◽
Vol 8
(12)
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pp. 1934578X1300801
Keyword(s):
Two new humulene-type sesquiterpenes, named hyptishumulene I (1) and II (2), have been isolated, together with eight known compounds, a humulene-type sesquiterpene (3), a monoterpene (4) and six abietane-type diterpenoids (5–10) from the aerial parts of Hyptis incana (Labiatae). The cytotoxic activity of the isolated compounds against mouse leukemia cells (L1210) was examined. The abietane-type diterpenoids (5–10) showed rather potent growth inhibitory activity (IC50<15 μM), while the new humulene-type compounds (1 and 2) exhibited moderate activity (IC50>50 μM).
2015 ◽
2011 ◽
Vol 66
(10)
◽
pp. 1076-1078
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