Methyl neoabietate

Neoabietic acid methyl ester

Abieta-13(15),8(14)-diene-18-oic acid methyl ester

13-Isopropylidenepodocarp-8(14)-en-18-oic acid methyl ester

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