Synthesis of oxygen-substituted benzocycloheptenes as valuable intermediate products for the production of tissue-selective estrogens
申请人:Schering AG
公开号:US20030162974A1
公开(公告)日:2003-08-28
The invention relates to intermediate products and a new process for the production of benzocycloheptene C.
1
The process for the production of its new intermediate products according to the invention starts from economical starting materials, provides the intermediate stages in high yields and high purity, without chromatographic purification steps, and allows production on an industrial scale.
本发明涉及中间产品和生产苯并环庚烯C的新工艺。
根据本发明,生产其新的中间产品的工艺从经济的起始材料开始,提供了高收率和高度纯净的中间阶段,无需色谱纯化步骤,并允许工业规模的生产。