| 摘要 |
<p>Intermediate product for the synthesis of amlodipine, process for its preparation and its utilization. The intermediate product is 3-amino-4-(2-phtalimide)ethoxy)crotonate of ethyl and has the formula (III). The preparation process comprises the reaction of acetoacetate having the formula (A) with ammonium acetate; it is used for the preparation of the compound having the formula (B) through the reaction of 3-amino-4-[2-(phtalimido)ethoxy]crotonate of ethyl with a derivative of benzylidene.</p> |
