Reaction Steps
A mixture of 12-chloro-4-(pyridin-2-yl)-9-oxa-3,6,13-triazatricyclo[8.4.0.02,6]tetradeca-1(14),2,4,10,12-pentaene (300 mg, 1.00 mmol), TEA (0.5 mL), and 1-methyl-2-(pyrrolidin-2-yl)piperidine (507 mg, 3.01 mmol) in NMP (0.5 mL) was stirred at 150° C. for 24 h under nitrogen atmosphere. After cooling down, the resultant mixture was purified directly by reverse phase Combiflash eluting with 0-50% gradient of CH3CN in 0.5% NH4HCO3 to give diastereomeric 111: 15 mg of diasteromer A and 12 mg diasteromer B (48% total yield). Diasteromer A: LCMS (ESI): RT=4.48 min, m/z: 431.3 [M+H+]. 1H-NMR (500 MHz, DMSO-d6): δ 9.14 (s, 1H), 8.50 (d, J=4.5 Hz, 1H), 7.96 (d, J=7.5 Hz, 1H), 7.83-7.79 (m, 2H), 7.22-7.19 (m, 1H), 6.05 (s, 1H), 4.52-4.45 (m, 4H), 4.11 (s, 1H), 3.45-3.34 (m, 2H), 2.78 (s, 1H), 2.17 (s, 3H), 2.11-2.01 (m, 2H), 1.95-1.85 (m, 4H), 1.70 (s, 1H), 1.50-1.35 (m, 3H), 1.30-1.19 (m, 2H). Diasteromer B: LCMS (ESI): RT=4.75 min, m/z: 431.3 [M+H+]. 1H-NMR (500 MHz, DMSO-d6): δ 9.15 (s, 1H), 8.50 (d, J=4.0 Hz, 1H), 7.96 (d, J=8.2 Hz, 1H), 7.83-7.78 (m, 2H), 7.22-7.19 (m, 1H), 5.98 (s, 1H), 4.52-4.45 (m, 5H), 3.42 (s, 2H), 2.77 (s, 1H), 2.29 (s, 3H), 2.16-2.13 (m, 2H), 2.00-1.88 (m, 4H), 1.64 (s, 1H), 1.50-1.25 (m, 3H), 1.20-0.90 (m, 2H)
