[1R-(1α,4aβ,4bα,6α,10aα)]-1,2,3,4,4a,4b,5,6,10,10a-Decahydro-6-hydroxy-1,4a-dimethyl-7-(1-methylethyl)-1-phenanthrencarbonsaeure-methylester

methyl 15-hydroxydehydroabietate

12-羟基松香酸

异丁酸