Methanol → 9-(1-(2-(methylsulfonyl)ethyl)piperidin-4-yl)-2-(1-(2,2,2-trifluoroethyl)-1H-1,2,4-triazol-5-yl)-4,5-dihydrobenzo[b]pyrazolo[1,5-d][1,4]oxazepine

Participants

Reaction Steps

A mixture of 9-piperidin-4-yl-2-[2-(2,2,2-trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-1,10b-diaza-benzo[e]azulene (90 mg, 0.22 mmol), triethylamine (150 μL, and IMS (0.6 mL) was treated with vinyl sulfone (48 mL, 0.54 mmol) then diluted with DCM and stirred for 18 h at RT. The reaction mixture was concentrated in vacuo and the residue triturated in diethyl ether to provide a solid which was subjected to flash chromatography (SiO2, gradient 0 to 5% MeOH in DCM) to give 152 as a white solid (96 mg, 85%). 1H NMR (400 MHz, CDCl3): δ 8.01 (s, 1H); 7.69 (s, 1H); 7.19-7.08 (m, 2H); 6.92 (s, 1H); 5.53 (q, J=8.15 Hz, 2H); 4.54 (t, J=6.01 Hz, 2H); 3.21-3.12 (m, 4H); 3.21-2.92 (m, 5H); 2.93 (t, J=6.33 Hz, 2H); 2.63-2.54 (m, 1H); 2.21 (t, J=11.57 Hz, 2H); 1.94 (d, J=12.96 Hz, 2H); 1.81-1.66 (m, 2H). LCMS: RT=6.57 min, M+H+=525

Provenance & Evidence