UN METODO PARA LA PREPARACION DE ACIDO 6,11-DIHIDRODIBENZO (B. E.) TIEPIN-11-ON-3-ACETICO.

摘要

This invention relates to a novel method for the preparation of 6,11-dihydrodibenzo-[b.e.]-thiepin-11-one-3-acetic acid and the novel intermediates 3-(2-dialkylamino-2-dialkylphosphonylvinyl)-6,11-dihydrodibenzo-[b.e.] -thiepin-11-one in the preparation thereof.