(+)-Dihydropalustric acid methyl ester

(+)-Abiet-8-en-18-oic acid methyl ester

(+)-Abieta-8-ene-18-oic acid methyl ester

(1R)-1,2,3,4,4a,5,6,7,8,9,10,10aα-Dodecahydro-1,4aβ-dimethyl-7α-(1-methylethyl)-1α-phenanthrenecarboxylic acid methyl ester