Category
Vildagliptin
CAS Number
19943-27-2
Molecular Formula
C₁₀H₁₄N₂O₂
Molecular Weight
194.23 g/mol
Synonym

(5aS,10aS)-Octahydro-5H,10H-dipyrrolo[1,2-a:1',2'-d]pyrazine-5,10-dione; (3S,9S)-1,7-diazatricyclo[7.3.0.03,7]dodecane-2,8-dione; Cyclo(L-Pro-L-Pro);Cyclo(prolylproline);Cyclo-L-prolyl-L-proline;Cis-Cyclo(Pro-Pro)

Keywords
Miscellaneous compounds
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Vildagliptin Impurity 2 (S-isomer) is a stereoisomeric impurity associated with vildagliptin, formed due to chiral inversion or incomplete stereoselective synthesis during manufacturing. Since vildagliptin is an enantiomerically pure drug, the presence of the S-isomer is considered an impurity and is monitored closely in quality control using analytical methods like HPLC or chiral chromatography to ensure drug purity, safety, and regulatory compliance in pharmaceutical preparations.