US Patent

US11566000 — Crystalline form of sofpironium bromide and preparation method thereof

Composition of Matter · Assigned to Botanix Sb Inc · Expires 2040-05-22 · 14y remaining

Vulnerability score 17/100 Ironclad — strong claim type, well-established, deep family

What this patent protects

This patent protects a crystalline form of sofpironium bromide, specifically Form CO, and a method for preparing it, suitable for use in medicaments.

USPTO Abstract

A cocrystal containing the 1′R-diastereomer and the 1'S-diastereomer of sofpironium bromide at a ratio of 1:3 (Form CO), a crystal mixture (for example, Form B) containing Form CO and a crystalline form of the 1′R-diastereomer (Form MN), and a method for preparing sofpironium bromide, which is suitable for manufacture of the crystal mixture are provided. Form CO and a crystalline form of sofpironium bromide containing Form CO (for example, Form B) have superior stability without hygroscopic property, and accordingly they can be preferably used as a raw material of medicaments.

Drugs covered by this patent

Patent Metadata

Patent number
US11566000
Jurisdiction
US
Classification
Composition of Matter
Expires
2040-05-22
Drug substance claim
Yes
Drug product claim
Yes
Assignee
Botanix Sb Inc
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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