Patent · US Active

Process for preparing substituted anisidines

US7884246B2 · kind B2 · utility

0Cited by

1References

13Claims

0Family size

Assignee

Boehringer Ingelheim International GmbH · DE

Inventors

Fabrice Gallou · Danbury, US
Heewon Lee · Parsippany, US
Chris Hugh Senanayake · Brookfield, US
Jinhua J. Song · Brewster, US
Zhulin Tan · Danbury, US
Jinghua Xu · Ridgefield, US
Nathan K. Yee · Seattle, US

Key dates

Filing date	Nov 1, 2006
Grant date	Feb 8, 2011
Priority date	—
Expiry date	Feb 24, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/16
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Disclosed is a process for preparing substituted anisidines of formula I starting from substituted cyclic hydroxy-ketones II via aromatization through a substituted oxime intermediate IV in which R is C1-C6 alkyl or halogen, and Alk is C1-C6 alkyl. The substituted anisidines of formula I have been found to be useful as intermediates in the preparation of agents for the treatment of hepatitis C viral (HCV) infections.

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