Isopropanol → HCID 90265830, compound

Participants

Reaction Steps

Racemic 7a-(4-fluorophenyl)-6-(5-fluoropyrimidin-2-yl)-4,4a,5,7-tetrahydropyrrolo[3,4-d][1,3]thiazin-2-amine (437 mg, 1.26 mmol) is chirally purified by SFC (Column: Chiralpak AD-H (5 u), 2.1×15 cm; eluent: 40% isopropyl alcohol (0.2% isopropylamine) in CO2; flow 70 mL/min at UV 225 nm). The second eluting isomer is dissolved in 15 mL dichloromethane and hydrogen chloride gas is bubbled through the solution for approximately 15 seconds and concentrated to give the title compound as a white solid (194 mg, 40%, >99% ee). ES/MS (m/e) 348 (M+H).

Provenance & Evidence