PROCESS FOR SYNTHESIS OF 7,8-DIMETHOXY-1,3-DIHYDRO-2H-3- BENZAZEPIN-2-ONE COMPOUNDS AND APPLICATION THEREIN SYNTHESIS OF IVABRADINE

摘要

An invention relates to processing of compound of formula (I), wherein R is group of para-methoxybenzyl (PMB) or said group, and usage of said compound in ivabradine synthesis, and additive pharmaceuticall acceptable acides salts thereof.