Patents Examined by Philip T. Datlow - Justia Patents Search

Patents Examined by Philip T. Datlow

Optical resolution method for 3R-(3-carboxybenzyl)-6-(5-fluoro-2-benzothiazolyl)methoxy-4R-chromanol

Patent number: 4987231

Abstract: Preparative method for 3R-(3-carboxybenzyl)-6-(5-fluoro-2-benzothiazolyl)methoxy-4R-chromanol via its salt with quinine.

Type: Grant

Filed: August 4, 1989

Date of Patent: January 22, 1991

Assignee: Pfizer Inc.

Inventors: Robert C. Friedmann, George J. Quallich