Water → 2-(1-isopropyl-3-methyl-1H-1,2,4-triazol-5-yl)-9-(1-methyl-5-(1-methylpiperidin-3-yl)-1H-pyrazol-4-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine

Participants

Reaction Steps

To a solution of 4-[3-methyl-1-(propan-2-yl)-1H-1,2,4-triazol-5-yl]-12-[1-methyl-5-(piperidin-3-yl)-1H-pyrazol-4-yl]-9-oxa-3,6-diazatricyclo[8.4.0.02,6]tetradeca1 (14),2,4,10,12-pentaene, also named as 2-(1-isopropyl-3-methyl-1H-1,2,4-triazol-5-yl)-9-(1-methyl-5-(piperidin-3-yl)-1H-pyrazol-4-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine (220 mg, 0.39 mmol) in dry THF (5.0 mL), was added LiAlH4 (59.3 mg, 1.56 mmol) in small portions at room temperature. The resultant mixture was heated to reflux for 1 h. Water (2.0 mL) was added to quench the reaction. The organic layer was dried over Na2SO4 and concentrated. The residue was purified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min) to give racemic 246 (150 mg, 79% yield), which was separated by chiral SFC (Cellulose-2 column, 0.1% DEA in MeOH isocratic) to give: 5.5 mg of one enantiomer and 70 mg of the other (39% total yield). LCMS (ESI): RT=4.96 min, m/z: 487.4 [M+H+]. 1H NMR (500 MHz, DMSO-d6) δ 8.42 (d, J=2.0 Hz, 1H), 7.91 (s, 1H), 7.43 (s, 1H), 7.09-7.06 (m, 1H), 6.93 (d, J=1.5 Hz, 1H), 5.87-5.84 (m, 1H), 4.54 (d, J=6.0 Hz, 4H), 3.90 (s, 3H), 3.17 (s, 1H), 2.78-2.74 (m, 2H), 2.26 (s, 3H), 2.18-2.13 (m, 3H), 1.64-1.48 (m, 5H), 1.45 (d, J=7.0 Hz, 6H)

Provenance & Evidence