反应详情

温度

100 °C

10a-(4-hydroxyphenyl)-2,3,10,10a-tetrahydro-1H,5H-imidazo[1,2-a]pyrrolo[1,2-d]pyrazin-5-one (50 mg, 0.19 mmol), 4-(2-chloroethyl)morpholine hydrochloride (106 mg, 0.57 mmol) and potassium carbonate (105 mg, 0.76 mmol) were suspended in DMF (1 mL) and the mixture heated at 100° C. The reaction was complete after 3 hours. Brine (5 mL) and water (1 mL) were then added. The mixture was then extracted with ethyl acetate (3×3 mL) and the extracts were combined, dried (MgSO4), filtered and concentrated in vacuo to yield a residue that was purified by flash chromatography (Biotage SP4, gradient 0 to 10% methanol-dichloromethane). The material isolated required a second purification by reverse phase chromatography (Biotage SP4, C18 column, 5 to 100% 10 mM NH4OAC (aq)-MeOH) to give 10a-{4-[2-(morpholin-4-yl)ethoxy]phenyl}-2,3,10,10a-tetrahydro-1H,5H-imidazo[1,2-a]pyrrolo[1,2-d]pyrazin-5-one (75% pure, 22 mg, yield: 22%). The product was used in the next step without further purification. ESI-MI m/z [M+H]+ 383.2.

1. extractionThe mixture was then extracted with ethyl acetate (3×3 mL)
2. dry with materialdried (MgSO4)
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. customto yield a residue that
6. customwas purified by flash chromatography (Biotage SP4, gradient 0 to 10% methanol-dichloromethane)
7. customThe material isolated
8. customa second purification by reverse phase chromatography (Biotage SP4, C18 column, 5 to 100% 10 mM NH4OAC (aq)-MeOH)