The present invention relates an optimised process for the preparation of the compound of formula (Z)-[11-(3-dimethylamino-propyliden)-6,11-dihydro-dibenzo[b,e]oxepin-2-yl]-acetic acid hydrochloride in a higher purity, which comprises the preparation of salts of advanced intermediates and final crystallization of compound of formula 11-[(Z)-3-(dimethylamino)propylidene]-6,11-dihydro-dibenz[b,e]oxepin-2-yl]-acetic acid hydrochloride.
本发明涉及一种优化的工艺,用于制备式(Z)-[11-(3-二甲基
氨基
丙烯基)-6,11-二氢二苯并[b,e]氧杂-2-基]-
乙酸盐酸盐高纯度化合物,其包括先制备高级中间体的盐酸盐,再结晶式11-[(Z)-3-(二甲基
氨基)
丙烯基]-6,11-二氢二苯并[b,e]氧杂-2-基]-
乙酸盐酸盐化合物。