| Sr. No. | Name of the Intermediate | CAS No | API Name |
|---|---|---|---|
| 1 | 8-Bromo-3,9-dihydro-3-methyl-1H-purine-2,6-dione | 93703-24-3 | Linagliptin |
| 2 | 8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-1H-purine-2,6(3H,7H)-dione | 853029-57-9 | Linagliptin |
| 3 | 8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1H-purine-2,6(3H,7H)-dione | 666816-98-4 | Linagliptin |
| 4 | Chloromethyl)-4-methylquinazoline | 109113-72-6 | Linagliptin |
