CN Patent

CN112300123B — 一种沃诺拉赞中间体的制备方法

Assigned to SHANGHAI TIANCI INTERNATIONAL PHARMACEUTICAL CO LTD · Expires 2023-07-18 · 3y expired

What this patent protects

本发明提供了一种沃诺拉赞中间体的制备方法。具体地，本发明经溴代反应、磺酰化反应、Vilsmeier反应、Suzuki反应得到沃诺拉赞中间体。本发明制备方法避免了危险的氢化反应、低温反应，且本发明反应具有条件温和，易于操作，原料便宜，生产成本低，总收率高。

USPTO Abstract

本发明提供了一种沃诺拉赞中间体的制备方法。具体地，本发明经溴代反应、磺酰化反应、Vilsmeier反应、Suzuki反应得到沃诺拉赞中间体。本发明制备方法避免了危险的氢化反应、低温反应，且本发明反应具有条件温和，易于操作，原料便宜，生产成本低，总收率高。

Drugs covered by this patent

Patent Metadata

Patent number
CN112300123B
Jurisdiction
CN
Classification
—
Expires
2023-07-18
Drug substance claim
No
Drug product claim
No
Assignee
SHANGHAI TIANCI INTERNATIONAL PHARMACEUTICAL CO LTD
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.