CN Patent

CN107641139A — 达格列净中间体的晶型及其制备方法

Assigned to Jiangsu Hansoh Pharmaceutical Group Co Ltd · Expires 2018-01-30 · 8y expired

What this patent protects

本发明公开一种达格列净中间体的晶型及其制备方法，具体涉及达格列净中间体(2S,3R,4S,5S,6R)‑2‑(4‑氯‑3‑(4‑乙氧基苄基)苯基)‑2‑乙氧基‑6‑(甲基羟基)四氢‑2H‑吡喃‑3,4,5‑三醇的晶型，及其制备方法。本发明提供的晶型，其优点在于，能够将中间体高度提纯，得到纯度达99.3％以上的样品，对于提高达格列净的质量有重要的意义，并且制备工艺简单，适宜工业化的生产。

USPTO Abstract

本发明公开一种达格列净中间体的晶型及其制备方法，具体涉及达格列净中间体(2S,3R,4S,5S,6R)‑2‑(4‑氯‑3‑(4‑乙氧基苄基)苯基)‑2‑乙氧基‑6‑(甲基羟基)四氢‑2H‑吡喃‑3,4,5‑三醇的晶型，及其制备方法。本发明提供的晶型，其优点在于，能够将中间体高度提纯，得到纯度达99.3％以上的样品，对于提高达格列净的质量有重要的意义，并且制备工艺简单，适宜工业化的生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN107641139A
Jurisdiction
CN
Classification
—
Expires
2018-01-30
Drug substance claim
No
Drug product claim
No
Assignee
Jiangsu Hansoh Pharmaceutical Group 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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