反应详情

20 M NH3 in H2O (2 mL) was added to a suspension of 8-chloro-3-cyclopentyl-1-(4-phenoxyphenyl)-imidazo[1,5-a]pyrazine (21 mg, 0.054 mmol) in i-PrOH (2 mL). The mixture was heated in an oil bath set at 105° C. overnight. Reaction mixture was concentrated in vacuo and purification by prep TLC using 10% MeOH in DCM afforded 9 mg of the title compound as an off white solid. The compound was registered as OSIP 700099. 1H NMR (400 MHz, CDCl3): δ=1.61-1.95 (m, 4H), 2.02-2.23 (m, 4H), 3.30-3.43 (m, 1H), 5.07 (br. s., 2H), 7.03-7.08 (m, 3H), 7.08-7.16 (m, 3H), 7.23 (d, J=5.05 Hz, 1H), 7.30-7.41 (m, 2H), 7.61 (d, 2H). MS (ES+): m/z 370.83 (100)[MH+]. HPLC: tR=2.61 min (Open Lynx polar—5 min).

1. temperatureThe mixture was heated in an oil bath
2. customReaction mixture
3. concentrationwas concentrated in vacuo and purification by prep TLC