Sodium borohydride → HCID 70656343, compound

Participants

Reaction Steps

Sodium borohydride (14.21 mg, 0.376 mmol) was added into a flask and the atmosphere was replaced with nitrogen. Dry ethanol was added and the reaction mixture was cooled to 0° C. (S)-ethyl 4-(1-(3-(3-chloro-4-cyano-2-methylphenyl)-1H-pyrazol-1-yl)propan-2-ylcarbamoyl)thiazole-2-carboxylate (86 mg, 0.188 mmol) was added and the reaction mixture was warmed slowly to RT while stirring overnight. The crude product was cooled to 0° C., the pH was adjusted to 7 and the mixture was evaporated. DCM and a few drops of methanol were added and the crude product was washed with 1M Na2CO3 and with water. Yield 89%. 1H-NMR (400 MHz; DMSO-d6): δ 1.13 (d, 3H), 2.53 (s, 3H), 4.23 (dd, 1H), 4.40 (dd, 1H), 4.49 (m, 1H), 4.75 (d, 2H), 6.21 (t, 1H), 6.62 (d, 1H), 7.64 (dd, 1H), 7.82 (dd, 1H), 7.85 (d, 1H), 8.13 (s, 1H), 8.43 (d, 1H).

Provenance & Evidence