4-氨基-1-甲基哌啶

4-(9-cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxy-benzoic acid

3-cyclopentylamino-2,2-difluoro-propanoic acid ethyl ester

3-[(2-chloro-5-nitro-pyrimidin-4-yl)-cyclopentyl-amino]-2,2-difluoro-propanoic acid ethyl ester

benzotriazol-1-ylmethyl-cyclopentyl-amine