8-Bromo-7-But-2-Ynyl-3-Methyl-1-(4-Methyl-Quinazolin-2-Ylmethyl)-3,7-Dihydro-Purine-2,6-Dione

8-BroMo-7-(2-butyn-a-yl)-3,7-dihydro-3-Methyl-1-[(4-Methyl-2-quinazolinyl)Methyl]-1H-purine-2,6-dione; 8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquin-azolin-2-yl)methyl)-1H-purine-2,6(3H,7H)-dion; 8-BroMo-7-(but-2-yn-1-yl)-3-Methyl-1-((4-Methylquinazolin-2-yl)Methyl)-1H-purine-2,6(3H,7H)-dione; 1H-Purine-2,6-dione,8-broMo-7-(2-butynyl)-3,7-dihydro-3-Methyl-1-[(4-Methyl-2-quinazolinyl)Methyl]-; Linagliptin interMediate F; 1-[(4-Methylquinazolin-2-yl)Methyl]-3-Methyl-7-(2-butin-1-yl)-8-broMoxanthine; Iinagliptin Intermediate3; 8-bromo-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione