1,3,4-Thiadiazol-2-amine → HCID 86637650, compound

Participants

Reaction Steps

A solution of 3-(6-chloro-pyridin-3-yl)-2,2-dimethyl-3-phenyl-propionic acid (Preparation 4, 100 mg, 0.345 mmol), 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (EDC) (132 mg, 0.69 mmol) and 1-hydroxy-7-benzotriazole (HOBt) (93 mg, 0.69 mmol), 1,3,4-thiadiazol-2-amine (103 mg, 1.04 mmol) and diisopropylethyl amine (0.21 ml, 1.21 mmol) in CH3CN (1 mL) was heated at 75° C. for 12 hours. The reaction mixture was filtered, concentrated and purified by silica gel flash chromatography using 50% ethyl acetate in hexanes to give 3-(6-chloro-pyridin-3-yl)-2,2-dimethyl-3-phenyl-N-[1,3,4]thiadiazol-2-yl-propionamide as a white solid. (102 mg, 79.3% yield).). 1H NMR (400 MHz, CDCl3): δ 1.31 (s, 3H), 1.32 (s, 3H), 4.57 (s, 1H), 7.15 (m, 1H), 7.20 (m, 2H), 7.28 (m, 3H), 7.85 (m, 1H), 8.26 (br s, 1H), 8.90 (s, 1H). LC/MS (m/z) 373.19 [(M+H)+]; HPLC Rt: 2.913 min.

Provenance & Evidence