ent-Strobane and ent-Pimarane Diterpenoids from Siegesbeckia pubescens.


Two strobane diterpenoids, strobols A (1) and B (2), 15 new pimarane diterpenoids (3-6 and 8-18), and the known compounds kirenol (19), darutigenol (20), and ent-2β,15,16,19-tetrahydroxypimar-8(14)-ene (7) were isolated from the aerial parts of Siegesbeckia pubescens Makino. The structures of the new compounds were established based on the interpretation of… (More)
DOI: 10.1021/acs.jnatprod.6b00150


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