Diisopropylethylamine → HCID 66687897, compound

Participants

Reaction Steps

The racemic mixture of (1RS,2SR)-1-{[1-(4-fluorophenyl)-1H-indazol-5-yl]oxy}-1-[4-(methylthio)phenyl]propan-2-amine (27a, 11 mg, 0.02 mmol) was dissolved in THF (1.5 mL). Excess N-ethyldiisopropylamine (0.185 mL, 1.1 mmol) and cyclopropanesulfonyl chloride (0.063 mL, 0.62 mmol) was added in portions over a period of 3 hours. The reaction mixture was stirred over night at room temperature, quenched by addition of water and purified by HPLC. Fractions with product was freeze dried to give the title compound as a colourless solid. Chiral HPLC was made using an Chiralpak IB™, 150×0.46 mm column, 15% EtOH in iso-Hexane, 0.5 mL/min, UV=254 nm. two peaks was seen in 1:1 ratio.

Provenance & Evidence