CN Patent

CN110218209B — 一种依匹哌唑月桂酸酯的晶型a、其制备方法及应用

Assigned to Shanghai Institute of Pharmaceutical Industry · Expires 2022-09-30 · 4y expired

What this patent protects

本发明公开了一种如式I所示的依匹哌唑月桂酸酯的晶型A,其制备方法及应用。本发明所述的依匹哌唑月桂酸酯的晶型A,其以衍射角为2θ表示的X‑射线粉末衍射图在3.7±0.2°、6.4±0.2°、11.2±0.2°、12.7±0.2°、14.8±0.2°、15.0±0.2°、18.5±0.2°、19.0±0.2°、19.7±0.2°、20.2±0.2°、21.7±0.2°、23.4±0.2°处有特征峰。通过本发明的制备方法制备得到的依匹哌唑月桂酸酯的晶型A纯度高,具有合适的熔点和良好的稳定性,易于解离得到依匹哌唑,其水溶性极低,而脂溶性相比依匹哌唑更高,且具有更…

USPTO Abstract

本发明公开了一种如式I所示的依匹哌唑月桂酸酯的晶型A,其制备方法及应用。本发明所述的依匹哌唑月桂酸酯的晶型A,其以衍射角为2θ表示的X‑射线粉末衍射图在3.7±0.2°、6.4±0.2°、11.2±0.2°、12.7±0.2°、14.8±0.2°、15.0±0.2°、18.5±0.2°、19.0±0.2°、19.7±0.2°、20.2±0.2°、21.7±0.2°、23.4±0.2°处有特征峰。通过本发明的制备方法制备得到的依匹哌唑月桂酸酯的晶型A纯度高,具有合适的熔点和良好的稳定性,易于解离得到依匹哌唑,其水溶性极低,而脂溶性相比依匹哌唑更高,且具有更好的缓释效果,适合长效制剂的开发,市场应用前景良好。

Drugs covered by this patent

Patent Metadata

Patent number
CN110218209B
Jurisdiction
CN
Classification
Expires
2022-09-30
Drug substance claim
No
Drug product claim
No
Assignee
Shanghai Institute of Pharmaceutical Industry
Source
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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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