Ethanol hydrochloride → Hydrochloric Acid

Participants

Reaction Steps

The HCl salt form of 4-(3-amino-6-((1 S,3S,4S)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-N—((S)-1-(3-bromo-5-fluorophenyl)-2-(methylamino)ethyl)-2-fluorobenzamide was prepared by dissolving amorphous 4-(3-amino-6-((1S,3S,4S)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-N—((S)-1-(3-bromo-5-fluorophenyl)-2-(methylamino)ethyl)-2-fluorobenzamide (120 mg) in 0.5N HCl ethanol solution (414 μL) with stirring at room temperature. A precipitate is observed after 5 minutes of stirring. A DSC/TGA thermograph of the highly crystalline HCl salt form of 4-(3-amino-6-((1S,3S,4S)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-N—((S)-1-(3-bromo-5-fluorophenyl)-2-(methylamino)ethyl)-2-fluorobenzamide is provided in FIG. 4. An X-ray powder diffraction pattern of the free base form was determined in FIG. 3. The most significant peaks in the XRPD of FIG. 3 are shown in the table:

Provenance & Evidence