Processes for the preparation of pharmaceutically acceptable salts of (R)-Pirlindole and (S)-Pirlindole
申请人:TECNIMEDE, SOCIEDADE TÉCNICO-MEDICINAL, SA
公开号:US11008327B2
公开(公告)日:2021-05-18
The present disclosure relates to an improved process for the synthesis of piperazine ring, particularly for the preparation of heterocyclic compounds useful as intermediates in the synthesis of pyrazinocarbazoles such as the antidepressant Pirlindole. The process described is useful to prepare Pirlindole enantiomers, or a pharmaceutically accepted salt thereof.
本公开涉及一种改进的哌嗪环合成工艺,特别是用于制备吡嗪咔唑(如抗抑郁药 Pirlindole)合成中间体的杂环化合物。所述工艺可用于制备 Pirlindole 对映体或其药用盐。