3,7,17-Trioxatetracyclo(12.2.1.16,9.02,4)octadeca-9(18),14,16-triene-15-carboxylic acid, 4-methyl-12-(1-methylethenyl)-8-oxo-, methyl ester, (2R,4S,6R,12S)- 3,7,17-Trioxatetracyclo(12.2.1.16,9.02,4)octadeca-9(18),14,16-triene-15-carboxylic acid, 4-methyl-12-(1-methylethenyl)-8-oxo-, methyl ester, (2R-(2R*,4S*,6R*,12S*))- 58772-81-9 Pukalide