HCID 46208543, compound → HCID 46901483, compound

Participants

Reaction Steps

A solution of N-[1-Cyano-1-methyl-2-(4,5,7-trichloro-2H-benzotriazol-2-yl)-ethyl]-4-trifluoromethoxybenzamide (60 mg, 0.12 mmole, described in U.S. Provisional Application SN: 60/930,485 as compound 1.064) and ammonium sulfide (0.04 mL, 40-48 wt. % in water from Sigma-Aldrich) in methanol (4 mL) was irradiated for 20 minute in a self-tunable CEM microwave Discover synthesizer at 80° C. (initial power 100 Watts) and then cooled using a flow of compressed air, evaporated in vacuo and partitioned between ethyl acetate and water. The aqueous layer was further extracted with ethyl acetate. The organic extracts were combined, washed with brine, washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to give a residue that that was purified by chromatography (SiO2, heptane/ethyl acetate) to afford the title compound as a solid (30 mg, 47%) along with recovered starting material (22 mg, 37%). MS (ES): M/Z [M+H]=526 and [M−H]=524. 1H NMR: (400 MHz, DMSO-d6): 1.48 (s, 3H), 5.59 (d, J=13.3 Hz, 1H), 5.70 (, J=13.3 Hz, 1H), 7.44 (d, J=8.0 Hz, 2H), 7.88 (s, 1H), 7.93 (d, J=8.8 Hz, 2H), 8.16 (s, 1H), 9.34 (s, 1H) and 9.83 (s, 1H). 19F NMR (376 MHz, DMSO-d6): −57.2 (s, 3F).

Provenance & Evidence