4-amino-6,7-dimethoxy-2-(5-methanesulfonamido-1,2,3,4-tetrahydroi-soquinol-2-yl)-5-(2-pyridyl) quinazo line mesylat and polymorphs

摘要

4 - amino Mesylate - 6.7 - Dimethoxy - 2 - (5 - metanosulfonamido - 1,2,3,Il - 2 - 4 - tetrahidroisoquinol) - 5 - (2-pyridyl) quinazoline of formula containing compositions and their use in the treatment of benign prostatic hyperplasia.The Application procedure include the addition of methanesulfonic acid to a suspension or solution of amino - 4 - 67 - Dimethoxy - 2 - (5 - metanosulfonamido - 1,2,3,4 - tetrahidroisoquinol - 2 - yl) - 5 - (2-pyridyl) quinazoline.