CN Patent

CN111875619B — 巴洛沙韦酯的晶型及其制备方法

Assigned to Nycrist Pharmatech Ltd · Expires 2021-06-25 · 5y expired

What this patent protects

本发明涉及一种巴洛沙韦酯的晶型及其制备方法,使用Cu‑Kα辐射,所述晶型的粉末X射线衍射图谱中,在衍射角2θ为5.1±0.2°,8.7±0.2°,15.2±0.2°,19.7±0.2°处具有特征峰;或,所述晶型的粉末X射线衍射图谱中,在衍射角2θ为5.1±0.2°,8.7±0.2°,12.4±0.2°,13.5±0.2°,15.2±0.2°,16.7±0.2°,18.4±0.2°,19.7±0.2°,22.2±0.2°,26.5±0.2°处具有特征峰。所述晶型的溶出速度较快,利于在人体胃肠道内的吸收,提高药物的生物利用度。

USPTO Abstract

本发明涉及一种巴洛沙韦酯的晶型及其制备方法,使用Cu‑Kα辐射,所述晶型的粉末X射线衍射图谱中,在衍射角2θ为5.1±0.2°,8.7±0.2°,15.2±0.2°,19.7±0.2°处具有特征峰;或,所述晶型的粉末X射线衍射图谱中,在衍射角2θ为5.1±0.2°,8.7±0.2°,12.4±0.2°,13.5±0.2°,15.2±0.2°,16.7±0.2°,18.4±0.2°,19.7±0.2°,22.2±0.2°,26.5±0.2°处具有特征峰。所述晶型的溶出速度较快,利于在人体胃肠道内的吸收,提高药物的生物利用度。

Drugs covered by this patent

Patent Metadata

Patent number
CN111875619B
Jurisdiction
CN
Classification
Expires
2021-06-25
Drug substance claim
No
Drug product claim
No
Assignee
Nycrist Pharmatech 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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