CN Patent

CN104447713B — 阿法替尼化合物的制备方法

Assigned to Nanjing Hairun Pharmaceutical Co ltd · Expires 2019-03-29 · 7y expired

What this patent protects

本发明提供了制备阿法替尼化合物的一种新方法，使用的原料与试剂具有成本低、化学性质稳定，便于长期存储的优点；并且制备的阿法替尼化合物中杂质顺式异构体含量极低。

USPTO Abstract

本发明提供了制备阿法替尼化合物的一种新方法，使用的原料与试剂具有成本低、化学性质稳定，便于长期存储的优点；并且制备的阿法替尼化合物中杂质顺式异构体含量极低。

Drugs covered by this patent

afatinib-dimaleate (AFATINIB DIMALEATE)

Patent Metadata

Patent number: CN104447713B
Jurisdiction: CN
Classification: —
Expires: 2019-03-29
Drug substance claim: No
Drug product claim: No
Assignee: Nanjing Hairun 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.

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