A PROCESS FOR PREPARATION OF 1H-PURINE-2,6-DIONE, 8-[(3R)-3-AMINO-1-PIPERIDINYL]-7 (2-BUTYN-1-YL)-3,7-DIHYDRO-3-METHYL-1-[(4-METHYL-2QUINAZOLINYL) METHYL] AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS
The present invention discloses the process for preparation of 1H-Purine-2,6-dione, 8- [(3R)-3-amino-1-piperidinyl]-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl- 2quinazolinyl) methyl].La présente invention concerne un procédé pour la préparation de 1H-purine-2,6-dione, 8- [(3R)-3-amino-1-pipéridinyl]-7-(2-butyn-1-yl)-3,7-dihydro-3-méthyl-1-[(4-methyl- 2quinazolinyl) méthyle].