Patent · US Active

Process for the preparation of and crystalline forms of optical enantiomers of modafinil

US8975442B2 · kind B2 · utility

0Cited by

19References

15Claims

0Family size

Assignee

Teva Sante · FR

Inventors

Pierre Leproust · Créteil, FR
Olivier Neckebrock · Pontault-Combault, FR

Key dates

Filing date	Aug 28, 2013
Grant date	Mar 10, 2015
Priority date	—
Expiry date	Aug 28, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/13
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to a polymorphic form of (−)-modafinil that produces a powder X-ray diffraction spectrum comprising intensity peaks corresponding to interplanar spacings of about 14.14, 10.66, 7.80 and 4.02 Å, and a process for the preparation thereof.

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