CN Patent

CN104530051B — 稳定的(6r,s)-5-甲基四氢叶酸晶型及其制备方法

Assigned to Beijing Jinkang Hexin Pharmaceutical Technology Co., Ltd · Expires 2016-08-24 · 10y expired

What this patent protects

本发明公开了一种稳定的(6R,S)‑5‑甲基四氢叶酸晶型，该晶型的X‑射线衍射图谱的2θ角至少在10.1±0.2、13.9±0.2、16.9±0.2、19.7±0.2、22.5±0.2、24.1±0.2处有衍射峰。本发明的5‑甲基四氢叶酸晶型具有理化性质优异、稳定性好、纯度高、重现性好、更适于工业化规模制备等优点。

USPTO Abstract

本发明公开了一种稳定的(6R,S)‑5‑甲基四氢叶酸晶型，该晶型的X‑射线衍射图谱的2θ角至少在10.1±0.2、13.9±0.2、16.9±0.2、19.7±0.2、22.5±0.2、24.1±0.2处有衍射峰。本发明的5‑甲基四氢叶酸晶型具有理化性质优异、稳定性好、纯度高、重现性好、更适于工业化规模制备等优点。

Drugs covered by this patent

sapropterin-dihydrochloride (SAPROPTERIN DIHYDROCHLORIDE)

Patent Metadata

Patent number: CN104530051B
Jurisdiction: CN
Classification: —
Expires: 2016-08-24
Drug substance claim: No
Drug product claim: No
Assignee: Beijing Jinkang Hexin Pharmaceutical Technology 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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