The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2025
Filed:
Apr. 24, 2021
Beijing Showby Pharmaceutical Co., Ltd., Beijing, CN;
Xiaoping Chen, Beijing, CN;
Zejun Gao, Beijing, CN;
Abstract
The present invention provides crystals of a quaternary ammonium salt structure compound, i.e., (2R,3R)-3-[(2-cyclopentyl-2-hydroxy-2-phenyl)ethoxy]-1-(3-phenoxypropyl) azabicyclo[2,2,2]octylonium bromide (Compound I). A Type-A crystal of Compound I displays diffraction peaks at the following diffraction angles 2θ in a X-ray powder diffraction pattern thereof: 5.7±0.2 degrees, 12.9±0.2 degrees, 16.7±0.2 degrees, 18.0±0.2 degrees, 19.5±0.2 degrees, 21.1±0.2 degrees, 22.3±0.2 degrees and 23.3±0.2 degrees. A Type-B crystal of Compound I displays diffraction peaks at the following diffraction angles 2θ in a X-ray powder diffraction pattern thereof: 5.2±0.2 degrees, 15.8±0.2 degrees, 16.9±0.2 degrees, 17.7±0.2 degrees, 19.5±0.2 degrees, 20.2±0.2 degrees and 22.1±0.2 degrees. The present application also relates to a new method for preparing Compound I and applications of the two novel crystals in the field of medicine.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile