Diisopropylethylamine → HCID 66775648, compound

Participants

Reaction Steps

To a stirring solution of 6-[(3-Trifluoromethoxy-benzylamino)-methyl]-3-aza-bicyclo[3.1.0]hexane-3-carboxylic acid tert-butyl ester prepared above (5.9 gm, 15.4 mmol) in 192 mL of CH3CN at room temperature under N2 was added DIEA (8.0 mL, 46.1 mmol) and 1-Methyl-1H-imidazole-4-carbonyl chloride HCL (5.6 gm, 30.7 mmol). After 24 hours, reaction was quenched with H2O, extracted with EtOAc. Organic layer was then washed with a 10% Citric acid solution, H2O, NaHCO3, and brine. The combined extracts were dried over anhydrous MgSO4, filtered and concentrated under reduced pressure, to yield 6.7 gm of 6-{[(1-Methyl-1H-imidazole-4-carbonyl)-(3-trifluoromethoxy-benzyl)-amino]-methyl}-3-aza-bicyclo[3.1.0]hexane-3-carboxylic acid tert-butyl ester 400 MHz 1H NMR (CDCl3) δ 7.8 (d, J=1.2 Hz, 1H), 7.3-7.1 (m, 5H), 5.4 (s, 1H), 4.8-4.7 (m, 1H), 4.2 (m, 1H), 3.7 (s, 1H), 3.7 (s, 3H), 3.4-3.2 (m, 3H), 1.4 (s, 9H), 1.3 (m, 2H), 0.8 (m, 1H); MS (M+1) 495.3.

Provenance & Evidence