3,3-Dimethyl-1-(trifluoromethyl)-1,2-benziodoxole → HCID 86711406, compound

Participants

Reaction Steps

A solution of 9-cyclopropyl-2-(4-(hydroxymethyl)-1H-imidazol-1-yl)-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-one (135 mg, 0.38 mmol) in CHCl3 (50 mL) under Ar, was treated with 3,3-Dimethyl-1-(trifluoromethyl)-1,2-benziodoxole (245 mg, 0.78 mmol) and Zn(NTf2)2 (242 mg, 0.39 mmol). The mixture was stirred at RT for 16 h, and then treated again with 3,3-Dimethyl-1-(trifluoromethyl)-1,2-benziodoxole (245 mg, 0.78 mmol) and Zn(NTf2)2 (242 mg, 0.39 mmol). After 24 h, the mixture was poured onto H2O and extracted with DCM. The combined org. layers were then dried over Na2SO4, filtered and concentrated in vacuo. The crude product was purified by flash chromatography (SiO2, DCM/MeOH 100:0 to 95:5) and by SFC (column: PPU 5 m, 250×30 mm, 60A, Princeton; eluent: isocratic 20% MeOH/CO2 for 11 min; flow 100 mL/min; UV detection at 220 nm) to give the title compound (3 mg). UPLC-MS: MS 417.2 (M+H+); UPLC rt 1.15 min. 1H NMR (400 MHz, DMSO-d6): δ ppm 0.56-0.71 (m, 2H); 0.93-1.05 (m, 2H); 1.91-2.04 (m, 1H); 3.14-3.20 (m, 2H); 3.89-4.01 (m, 2H); 4.34 (br s, 2H); 5.00 (s, 2H); 7.03 (s, 1H); 7.18-7.26 (m, 1H); 7.26-7.34 (m, 1H); 7.69-7.85 (m, 2H); 8.25 (s, 1H).

Provenance & Evidence