Synonyms: | Linagliptin Impurity K;(R)-8-(3-aminopiperidin-1-yl)-3-methyl-7-(quinazolin-2-ylmethyl)-1H-purine-2,6(3H,7H)-dione;8-[(3R)-3-Amino-1-piperidinyl]-7-[(2Z)-3-bromo-2-buten-1-yl]-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-dione;8-[(3R)-3-aminopiperidin-1-yl]-7-[(Z)-3-bromobut-2-enyl]-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]purine-2,6-dione;(R,Z)-8-(3-aminopiperidin-1-yl);Linagliptin impurity 16/(R,Z)-8-(3-aminopiperidin-1-yl)-7-(3-bromobut-2-en-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione;1H-Purine-2,6-dione, 8-[(3R)-3-amino-1-piperidinyl]-7-[(2Z)-3-bromo-2-buten-1-yl]-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-;Linagliptin M |