teneligliptin and its Impurities
Teneligliptin belongs to the dipeptidyl peptidase-4 inhibitors class of drugs. This anti-diabetic drug is used for the treatment of type 2 diabetes mellitus. Reference standards of Teneligliptin API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


((2S)-4-(4-(3-Methyl-4-((3-methyl-1-phenyl-5-(4-((3S,5S)-5-(thiazolidine-3-carbonyl)pyrrolidin-3-yl)piperazin-1-yl)-1H-pyrazol-4-yl)methyl)-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidin-2-yl)(thiazolidin-3-yl)methanone
((2S)-4-(4-(3-Methyl-4-((3-methyl-1-phenyl-5-(4-((3S,5S)-5-(thiazolidine-3-carbonyl)pyrrolidin-3-yl)piperazin-1-yl)-1H-pyrazol-4-yl)methyl)-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidin-2-yl)(thiazolidin-3-yl)methanone
Catalogue No.:PA 47 01600
CAS :
NA
Molecular Formula : C45H60N12O2S2
Molecular Weight : 865.17


(2S,4S)-N-(2-Mercaptoethyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxamide Dihydrochloride
(2S,4S)-N-(2-Mercaptoethyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxamide Dihydrochloride
Catalogue No.:PA 47 01610
CAS :
NA
Molecular Formula : C21H32Cl2N6OS
Molecular Weight : 487.49


(2S)-4-Oxo-2-(3-thiazolidinylcarbonyl)-1-pyrrolidinecarboxylic Acid 1,1-Dimethylethyl Ester
(2S)-4-Oxo-2-(3-thiazolidinylcarbonyl)-1-pyrrolidinecarboxylic Acid 1,1-Dimethylethyl Ester
Catalogue No.:PA 47 01630
CAS :
401564-36-1
Molecular Formula : C13H20N2O4S
Molecular Weight : 300.37


tert-Butyl (2S,4S)-4-[4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl]-2-[(1,3-thiazolidin-3-yl)carbonyl]pyrrolidine-1-carboxylate
tert-Butyl (2S,4S)-4-[4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl]-2-[(1,3-thiazolidin-3-yl)carbonyl]pyrrolidine-1-carboxylate
Catalogue No.:PA 47 01650
CAS :
401566-80-1
Molecular Formula : C27H38N6O3S
Molecular Weight : 526.69


(2S,4S)-tert-Butyl 4-(4-(3-methyl-1-phenyl-1,6-dihydropyrazine-2-carbonyl)piperazin-1-yl)-2-(thiazolidine-3-carbonyl)pyrrolidine-1-carboxylate
(2S,4S)-tert-Butyl 4-(4-(3-methyl-1-phenyl-1,6-dihydropyrazine-2-carbonyl)piperazin-1-yl)-2-(thiazolidine-3-carbonyl)pyrrolidine-1-carboxylate
Catalogue No.:PA 47 01660
CAS :
NA
Molecular Formula : C29H40N6O4S
Molecular Weight : 568.73


tert-Butyl (2S,4R)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)-2-(thiazolidine-3-carbonyl)pyrrolidine-1-carboxylate
tert-Butyl (2S,4R)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)-2-(thiazolidine-3-carbonyl)pyrrolidine-1-carboxylate
Catalogue No.:PA 47 01680
CAS :
1404559-22-3
Molecular Formula : C27H38N6O3S
Molecular Weight : 526.7


((2S,4S)-4-((2-((3-Methyl-1-phenyl-1H-pyrazol-5-yl)amino)ethyl)amino)pyrrolidin-2-yl)(thiazolidin-3-yl)methanone
((2S,4S)-4-((2-((3-Methyl-1-phenyl-1H-pyrazol-5-yl)amino)ethyl)amino)pyrrolidin-2-yl)(thiazolidin-3-yl)methanone
Catalogue No.:PA 47 01720
CAS :
NA
Molecular Formula : C20H28N6OS
Molecular Weight : 400.55


((2S,4S)-4-(4-(4-Bromo-3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidin-2-yl)(thiazolidin-3-yl)methanone
((2S,4S)-4-(4-(4-Bromo-3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidin-2-yl)(thiazolidin-3-yl)methanone
Catalogue No.:PA 47 01730
CAS :
NA
Molecular Formula : C22H29BrN6OS
Molecular Weight : 505.48


5-(4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)-3-(thiazolidin-3-yl)tetrahydro-1H,3H-pyrrolo[1,2-c][1,3,2]oxazaborole, Sodium Salt
5-(4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)-3-(thiazolidin-3-yl)tetrahydro-1H,3H-pyrrolo[1,2-c][1,3,2]oxazaborole, Sodium Salt
Catalogue No.:PA 47 01740
CAS :
NA
Molecular Formula : C22H30BN6NaOS
Molecular Weight : 460.38


1-(tert-Butyl) 2-methyl (2S,4R)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-1,2-dicarboxylate
1-(tert-Butyl) 2-methyl (2S,4R)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-1,2-dicarboxylate
Catalogue No.:PAI 47 001005
CAS :
2131105-24-1
Molecular Formula : C25H35N5O4
Molecular Weight : 469.59


1-(tert-Butyl) 2-methyl (2R,4R)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-1,2-dicarboxylate
1-(tert-Butyl) 2-methyl (2R,4R)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-1,2-dicarboxylate
Catalogue No.:PAI 47 001006
CAS :
NA
Molecular Formula : C25H35N5O4
Molecular Weight : 469.59


(2S,4R)-1-(tert-Butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxylic Acid
(2S,4R)-1-(tert-Butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxylic Acid
Catalogue No.:PAI 47 001007
CAS :
NA
Molecular Formula : C24H33N5O4
Molecular Weight : 455.56


(2R,4R)-1-(tert-Butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxylic Acid
(2R,4R)-1-(tert-Butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxylic Acid
Catalogue No.:PAI 47 001008
CAS :
NA
Molecular Formula : C24H33N5O4
Molecular Weight : 455.56


tert-Butyl (2R,4R)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)-2-(thiazolidine-3-carbonyl)pyrrolidine-1-carboxylate
tert-Butyl (2R,4R)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)-2-(thiazolidine-3-carbonyl)pyrrolidine-1-carboxylate
Catalogue No.:PAI 47 001009
CAS :
2459946-10-0
Molecular Formula : C27H38N6O3S
Molecular Weight : 526.70


(2S,4S)-1-(tert-Butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxylic Acid
(2S,4S)-1-(tert-Butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxylic Acid
Catalogue No.:PA 47 0011000
CAS :
1821705-03-6
Molecular Formula : C24H33N5O4
Molecular Weight : 455.56


1-(Tert-butyl) 2-methyl (2S,4S)-4-(((4-nitrophenyl)sulfonyl)oxy)pyrrolidine-1,2-dicarboxylate
1-(Tert-butyl) 2-methyl (2S,4S)-4-(((4-nitrophenyl)sulfonyl)oxy)pyrrolidine-1,2-dicarboxylate
Catalogue No.:PAI 47 001013
CAS :
1361054-84-3
Molecular Formula : C17H22N2O9S
Molecular Weight : 430.43


((2S,2'S,4S,4'S)-Methylenebis(4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-1,2-diyl))bis(thiazolidin-3-ylmethanone)
((2S,2'S,4S,4'S)-Methylenebis(4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-1,2-diyl))bis(thiazolidin-3-ylmethanone)
Catalogue No.:PA 47 0011006
CAS :
NA
Molecular Formula : C45H60N12O2S2
Molecular Weight : 865.18


(2S,4S)-4-(4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxylic acid
(2S,4S)-4-(4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxylic acid
Catalogue No.:PA 47 0011008
CAS :
2407632-38-4
Molecular Formula : C19H25N5O2
Molecular Weight : 355.44


(2S,2'S,4S,4'S)-N,N'-(Disulfanediylbis(ethane-2,1-diyl))bis(4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxamide)
(2S,2'S,4S,4'S)-N,N'-(Disulfanediylbis(ethane-2,1-diyl))bis(4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxamide)
Catalogue No.:PA 47 0011009
CAS :
2407632-31-7
Molecular Formula : C42H58N12O2S2
Molecular Weight : 827.13


(2S)-4-Oxo-2-(3-thiazolidinylcarbonyl)-1-pyrrolidinecarboxylic Acid 1,1-Dimethylethyl Ester (BSC)
(2S)-4-Oxo-2-(3-thiazolidinylcarbonyl)-1-pyrrolidinecarboxylic Acid 1,1-Dimethylethyl Ester
Catalogue No.:PA BSC 00147806
CAS :
401564-36-1
Molecular Formula : C13H20N2O4S
Molecular Weight : 300.37


((2S,2'S,4S,4'S)-((Methylenebis(3-methyl-1-phenyl-1H-pyrazole-4,5-diyl))bis(piperazine-4,1-diyl))bis(pyrrolidine-4,2-diyl))bis(thiazolidin-3-ylmethanone)
((2S,2'S,4S,4'S)-((Methylenebis(3-methyl-1-phenyl-1H-pyrazole-4,5-diyl))bis(piperazine-4,1-diyl))bis(pyrrolidine-4,2-diyl))bis(thiazolidin-3-ylmethanone)
Catalogue No.:PA 47 0011012
CAS :
2459971-79-8
Molecular Formula : C45H60N12O2S2
Molecular Weight : 865.18


rel-((2R,4S)-4-(4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidin-2-yl)(thiazolidin-3-yl)methanone
rel-((2R,4S)-4-(4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidin-2-yl)(thiazolidin-3-yl)methanone
Catalogue No.:PA 47 0011014
CAS :
2448150-93-2
Molecular Formula : C22H30N6OS
Molecular Weight : 426.58


rel-(2R,4R)-N-(2-Mercaptoethyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxamide
rel-(2R,4R)-N-(2-Mercaptoethyl)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxamide
Catalogue No.:PA 47 0011015
CAS :
2987972-98-3
Molecular Formula : C21H30N6OS
Molecular Weight : 414.57