19-Methylmalonyloxy-ent-isopimara-8(9),15-diene InChI=1/C24H36O4/c1-6-22(2)13-10-18-17(15-22)8-9-19-23(3,11-7-12-24(18,19)4)16-28-21(26)14-20(25)27-5/h6,19H,1,7-16H2,2-5H3/t19?,22-,23+,24+/m1/s Malonic acid methyl ester 1,4a,7-trimethyl-7-vinyl-1,2,3,4,4a,5,6,7,8,9,10,10a-dodecahydro-phenanthren-1-ylmethyl ester methyl (5xi,10alpha)-pimara-8,15-dien-18-yl malonate propanedioic acid, [(1R,4aR,7R)-7-ethenyl-1,2,3,4,4a,5,6,7,8,9,10,10a-dodecahydro-1,4a,7-trimethyl-1-phenanthrenyl]methyl methyl ester