AN IMPROVED PROCESS FOR THE PREPARATION OF AMLODIPINE FREE BASE AND ACID ADDITION SALTS THEREOF
摘要
<p>Disclosed herein is an improved process for preparation of Amlodipine free base and acid addition salts thereof in good yield by deprotecting Phthaloyl Amlodipine using total concentration of 25% aqueous monomethyl amine in the reaction mixture and Amlodipine free base thus obtained is treated with suitable acids in aqueous medium to yield corresponding Amlodipine salts.</p>
