Patent · US Active

γ-aminobutyric acid modulator crystal form X, preparation method and application thereof

US12122804B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

SHENZHEN RENTAI PHARMATECH LTD. · CN

Inventors

Guobin Ren · Shanghai, CN
Weijie Ji · Lo Wu, CN
Dongxu Yi · Lo Wu, CN
Jiajun Huang · Longbeilingcun, CN

Key dates

Filing date	Jan 31, 2019
Grant date	Oct 22, 2024
Priority date	—
Expiry date	Feb 18, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07J43/003
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A crystal form X of 3α-hydroxy-3β-methyl-21-(4-cyano-1H-pyrazol-1′-yl)-19-nor-5β-pregnan-20-one, a preparation method of said crystal form and an application thereof in preparing a drug for treatment of central nervous system disease.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.