CN Patent

CN1258275A — 制备3－(7－脒基－2－萘基)－2－苯基丙酸衍生物的方法

Assigned to Daiichi Pharmaceutical Co Ltd · Expires 2000-06-28 · 26y expired

What this patent protects

通过包括(1)、(2)和(3)在内的下列反应流程,在工业上制备具有抗凝血活性的芳族脒衍生物(日本专利申请公开No.5—208946)、即由式(3)代表的化合物的中间体的方法,其中R 1 代表H、烷酰基、烷氧羰基、芳烷基、芳烷氧基羰基等等;R 3 代表H、烷基或烷酰基。

USPTO Abstract

通过包括(1)、(2)和(3)在内的下列反应流程,在工业上制备具有抗凝血活性的芳族脒衍生物(日本专利申请公开No.5—208946)、即由式(3)代表的化合物的中间体的方法,其中R 1 代表H、烷酰基、烷氧羰基、芳烷基、芳烷氧基羰基等等;R 3 代表H、烷基或烷酰基。

Drugs covered by this patent

Patent Metadata

Patent number
CN1258275A
Jurisdiction
CN
Classification
—
Expires
2000-06-28
Drug substance claim
No
Drug product claim
No
Assignee
Daiichi 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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