Bay 41-4109 (less active enantiomer) BAY41-4109 LESS ACTIVE ENANTIOMER BAY-41-4109 LESS ACTIVE ENANTIOMER BAYER 41-4109 LESS ACTIVE ENANTIOMER Bayer 41-4109 less active enantiomer methyl (4S)-4-(2-chloro-4-fluorophenyl)-2-(3,5-difluoropyridin-2-yl)-6-methyl-1,4-dihydropyrimidine-5-carboxylate 5-Pyrimidinecarboxylic acid, 4-(2-chloro-4-fluorophenyl)-2-(3,5-difluoro-2-pyridinyl)-1,4-dihydro-6-methyl-, methyl ester, (4S)- Bayer 41-4109 S-enantiomer