Patent · US Active

Process for the preparation of Crisaborole in a stable crystal form

US11325922B2 · kind B2 · utility

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0References

8Claims

0Family size

Assignee

OLON S.P.A. · IT

Inventors

Federico Gassa · Malnate, IT
Lazzaro FELICIANI · Milano, IT
Alberto MAZZA · Sant'Angelo Lodigiano, IT
Marco QUARONI · Sant'Angelo Lodigiano, IT
Mara Sada · Segrate, IT
Giorgio Bertolini · Sesto San Giovanni, IT

Key dates

Filing date	Jul 10, 2020
Grant date	May 10, 2022
Priority date	—
Expiry date	Jul 10, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/13
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for the preparation of crisaborole of formula (I): by preparing intermediates of formulas (II) and (III):

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