反应详情

rel-[(3R,4S)-3-fluoro-4-methoxypiperidin-4-yl]methanol hydrochloride (399 mg) and DIPEA (523 μl) were added to an NMP (3 ml) solution of 11-chloro-2,2-dimethyl-2,3-dihydro-1H-cyclopenta[4,5]pyrido[1,2-a]benzimidazole-4-carboxamide (314 mg), and heating and stirring were performed at 200° C. for 60 minutes under microwave irradiation. After adding water to the reaction liquid, the resulting precipitate was collected by filtration and dried under reduced pressure. The resulting solid was purified by silica gel column chromatography (MeOH/chloroform). The resulting crude purified matter was washed with chloroform-EtOAc-hexane to obtain rel-11-[(3R,4S)-3-fluoro-4-(hydroxymethyl)-4-methoxypiperidin-1-yl]-2,2-dimethyl-2,3-dihydro-1H-cyclopenta[4,5]pyrido[1,2-a]benzimidazole-4-carboxamide (169 mg).

1. temperatureheating
2. customwere performed at 200° C. for 60 minutes under microwave irradiation
3. customto the reaction liquid
4. filtrationthe resulting precipitate was collected by filtration
5. customdried under reduced pressure
6. customThe resulting solid was purified by silica gel column chromatography (MeOH/chloroform)
7. customThe resulting crude purified matter
8. washwas washed with chloroform-EtOAc-hexane