1-Piperazinecarboxylic
                            Order
                            917808-57-2
                            
                                1-Piperazinecarboxylic acid,4-[4-(3-chlorophenyl)-5-[2-(methylthio)-4-pyrimidinyl]-2-thiazolyl]-,1,1-dimethylethyl ester
                            
                        
                        
                            Order
                            850148-81-1
                            
                                1-Piperazinecarboxylic acid,4-[(1S)-1-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2-(phenylmethoxy)ethyl]-3-oxo-, 1,1-dimethylethyl ester
                            
                        
                        
                            Order
                            64861-32-1
                            
                                1-Piperazinecarboxylic acid,4-(1,2,3,4-tetrahydro-3-hydroxy-5,8-dimethoxy-2-naphthalenyl)-, ethylester, trans-
                            
                        
                        
                            Order
                            342601-91-6
                            
                                1-Piperazinecarboxylic acid, 2-[[(2,2,2-trifluoroethyl)amino]carbonyl]-,2-propenyl ester, (2S)-
                            
                        
                        
                            Order
                            24269-70-3
                            
                                1-Piperazinecarboxylic acid, 4-(2-(tert-butylcarboxyamino)ethyl)-, diisopropyl ester, hydrochloride
                            
                        
                        
                            Order
                            917484-85-6
                            
                                1-Piperazinecarboxylic acid, 2,5-dimethyl-4-(2-naphthalenylcarbonyl)-,methyl ester, (2R,5S)-
                            
                        
                        
                        
                        
                            Order
                            88571-18-0
                            
                                1-Piperazinecarboxylic acid, 4-methyl-,6-(7-chloro-1,8-naphthyridin-2-yl)-2,3,6,7-tetrahydro-1-oxido-7-oxo-5H-1,4-dithiino[2,3-c]pyrrol-5-yl ester, trans-
                            
                        
                        
                            Order
                            194943-84-5
                            
                                1-Piperazinecarboxylic acid,4-[[[4-methoxy-3-(4-methyl-1-piperazinyl)phenyl]amino]carbonyl]-,3-phenylpropyl ester
                            
                        
                        
                        
                            Order
                            923565-78-0
                            
                                1-Piperazinecarboxylic acid,4-[[4-[2-[4-[(3-fluorophenyl)amino]-1-piperidinyl]-2-oxoethyl]phenyl]methyl]-2-methyl-, phenylmethyl ester, (2R)-
                            
                        
                        
                            Order
                            923565-70-2
                            
                                1-Piperazinecarboxylic acid,4-[[4-(carboxymethyl)phenyl]methyl]-2-methyl-, phenylmethyl ester, (2S)-
                            
                        
                        
                        
                            Order
                            833491-09-1
                            
                                1-Piperazinecarboxylic acid,4-[[2-[1-[(3R)-3-(3,5-difluorophenyl)-3-[4-(methylsulfonyl)phenyl]propyl]-4-piperidinyl]ethyl]sulfonyl]-, ethyl ester
                            
                        
                        
                            Order
                            923943-42-4
                            
                                1-Piperazinecarboxylic acid,[(2R,6S)-1-[(4-chlorophenyl)sulfonyl]-6-(3,5-difluorophenyl)-2-piperidinyl]methyl ester, rel-
                            
                        
                        
                            Order
                            24269-83-8
                            
                                1-Piperazinecarboxylic acid, 4-(2-(isobutylisopropylamino)ethyl)-, cyclohexyl ester, hydrochloride
                            
                        
                        
                            Order
                            88571-20-4
                            
                                1-Piperazinecarboxylic acid, 4-methyl-,6-(7-chloro-1,8-naphthyridin-2-yl)-2,3,6,7-tetrahydro-4-oxido-7-oxo-5H-1,4-dithiino[2,3-c]pyrrol-5-yl ester, cis-
                            
                        
                        
                        
                            Order
                            923565-74-6
                            
                                1-Piperazinecarboxylic acid,4-[[4-[2-[4-[(3-fluorophenyl)amino]-1-piperidinyl]-2-oxoethyl]phenyl]methyl]-2-methyl-, 1,1-dimethylethyl ester, (2S)-
                            
                        
                        
                        
                            Order
                            917572-36-2
                            
                                1-Piperazinecarboxylic acid, 4-(3-azetidinyl)-3-(hydroxymethyl)-,1,1-dimethylethyl ester
                            
                        
                        
                            Order
                            917484-83-4
                            
                                1-Piperazinecarboxylic acid, 2,5-dimethyl-4-(2-naphthalenylcarbonyl)-,methyl ester, (2S,5R)-
                            
                        
                        
                            Order
                            921616-73-1
                            
                                1-Piperazinecarboxylic acid,4-[4-[3-(hexahydro-1H-azepin-1-yl)propoxy]phenyl]-3-oxo-,1,1-dimethylethyl ester
                            
                        
                        
                            Order
                            921616-75-3
                            
                                1-Piperazinecarboxylic acid,4-[4-[3-[(2R)-2-methyl-1-pyrrolidinyl]propoxy]phenyl]-3-oxo-,1,1-dimethylethyl ester
                            
                        
                        
                            Order
                            923943-44-6
                            
                                1-Piperazinecarboxylic acid, 4-(cyclopropylmethyl)-2-methyl-,[(2S,6R)-1-[(4-chlorophenyl)sulfonyl]-6-(3,5-difluorophenyl)-2-piperidinyl]methyl ester, (2R)-rel-
                            
                        
                        
                            Order
                            88571-21-5
                            
                                1-Piperazinecarboxylic acid, 4-methyl-,6-(7-chloro-1,8-naphthyridin-2-yl)-2,3,6,7-tetrahydro-4-oxido-7-oxo-5H-1,4-dithiino[2,3-c]pyrrol-5-yl ester, trans-
                            
                        
                        
                            Order
                            923565-68-8
                            
                                1-Piperazinecarboxylic acid, 4-[(4-bromophenyl)methyl]-2-methyl-,phenylmethyl ester, (2S)-
                            
                        
                        
                            Order
                            917614-86-9
                            
                                1-Piperazinecarboxylic acid,4-[[2-(3H-1,2-benzodioxol-5-yl)-1H-indol-4-yl]carbonyl]-,1,1-dimethylethyl ester
                            
                        
                        
                            Order
                            917808-60-7
                            
                                1-Piperazinecarboxylic acid,4-[4-(4-methoxyphenyl)-5-[2-(methylthio)-4-pyrimidinyl]-2-thiazolyl]-,1,1-dimethylethyl ester