Patent ID: 6723728
Filing Date: 2004-04-20
Classification: A61P,C07D

Abstract:
A polymorphic compound of (âˆ’)-cis-FTC, wherein the compound displays the following angular positions (two theta) of characteristic peaks in a powder X-ray diffraction pattern:a. 14.7Â°.1Â°Â±0.1Â°, 16.7Â°Â±0.1Â°, 19.6Â°Â±0.1Â°, 21.1Â°Â±0.1Â°, 21.8Â°Â±0.1Â°, 24.6Â°Â±0.1Â°, and 25.6Â°Â±0.1Â°(Form II (âˆ’)-cis-FTC); or b. 14.5Â°Â±0.1Â°, 16.7Â°Â±0.1Â°, 19.6Â°Â±0.1Â°, 20.4Â°Â±0.1Â°, 21.4Â°Â±0.1Â°, 21.7Â°Â±0.1Â°, 25.2Â°Â±0.1Â°, and 26.2Â°Â±0.1Â°(Form III (âˆ’)-cis-FTC).