(2012/03/27)
(R)-3-tertbutoxycarbonylamino-4-(2,4,5-trifluorophenyl)butyric acid ethyl ester
(R)-7-[3-tertbutoxycarbonylamino-4-(2,4,5-tri-fluorophenyl)butyryl]-3-trifluoromethyl-5,6,7,8-tetrahydro-imidazo[1,5-a]pyrazine-1-carboxylic acid
(R)-7-[3-tertbutoxycarbonylamino-4-(2,4,5-tri-fluorophenyl)butyryl]-3-trifluoromethyl-5,6,7,8-tetrahydro-imidazo[1,5-a]pyrazine-1-carboxylic acid methyl ester
(R)-[3-oxo-1-(2,4,5-trifluorobenzyl)-3-(1-bromo-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazin-7-yl)-propyl]-carbamic acid t-butyl ester
(R)-[3-oxo-1-(2,4,5-trifluorobenzyl)-3-(3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazin-7-yl)-propyl]-carbamic acid t-butyl ester