(R)-3-p-Tolyl-butyric acid (1R,2R,3S,4S)-3-[benzenesulfonyl-(3,5-dimethyl-phenyl)-amino]-1,7,7-trimethyl-bicyclo[2.2.1]hept-2-yl ester

2-Butenoic acid, 3-(4-methylphenyl)-, ethyl ester, (2E)-