2-[(E)-3-(Diphenyl-phosphinoyl)-1-methyl-propenyl]-4-methoxy-5-methyl-benzoic acid methyl ester

2-[(1E,3E,7E)-(R)-9-((2S,4R,6S,8S,9R)-4-Hydroxy-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl)-1,5,7-trimethyl-nona-1,3,7-trienyl]-4-methoxy-5-methyl-benzoic acid methyl ester

Benzoic acid,2-[9-(4-hydroxy-8,9-dimethyl-1,7-dioxaspiro[5.5]undec-2-yl)-1,5,7-trimethyl-1,3,7-nonatrienyl]-4-methoxy-5-methyl-, methyl ester,[2R-[2a(1E,3E,5R*,7E),4a,6b(8R*,9S*)]]-