Quinazoline und Verunreinigungen

(S)-8-(3-Aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione (Linagliptin Impurity)

(E)-N-(4-((3,4-Difluorophenyl)amino)-7-methoxyquinazolin-6-yl)-4-(piperidin-1-yl)but-2-enamide (Dacomitinib Impurity)

Ethyl 8-bromo-4-chloroquinazoline-2-carboxylate

5-Bromoquinazolin-2-amine

4-Chloro-7-methoxy-2-methylquinazoline

Ethyl 4,6-dichloroquinazoline-2-carboxylate

4-Methylquinazoline

4-Chloro-7-methoxyquinazoline-6-carboxamide

(R)-N-(1-(7-(But-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)-2,2,2-trifluoroacetamide (Linagliptin Impurity)

4-Chloro-8-fluoroquinazoline

(S,E)-N-(4-((3-CHLORO-4-FLUOROPHENYL)AMINO)-7-((TETRAHYDROFURAN-3-YL)OXY)QUINAZOLIN-6-YL)-4-(METHYLAMINO)BUT-2-ENAMIDE

5-Bromo-3-methyl-4(3H)-quinazolinone

4-Chloro-7-methoxy-6-nitroquinazoline

(E)-N-(4-((4-Fluorophenyl)amino)-7-methoxyquinazolin-6-yl)-4-(piperidin-1-yl)but-2-enamide (Dacomitinib Impurity)

7-Iodoquinazolin-4(1H)-one

4-Chloro-5,7-difluoroquinazoline

5-Methoxyquinazoline-2,4(1H,3H)-dione

(R)-7-(But-2-yn-1-yl)-8-(3-hydroxypiperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-1H-purine-2,6(3H,7H)-dione (Linagliptin Impurity)

2-Ethylquinazolin-4(1H)-one

6-Methoxyquinazolin-4-ol