反应详情

7.5 mg of lithium aluminum hydride were initially introduced into 1.5 ml of tetrahydrofuran and the mixture was stirred for 10 min. 6 mg of methyl 5-phenyl-1H-pyrazolo[4,3-c]isoquinoline-3-carboxylate (61) in 1.5 ml of tetrahydrofuran were then added dropwise. The mixture was stirred at 80° C. for 3 h, after which water was added and the whole was extracted with methylene chloride. The organic phase was dried over magnesium sulfate and concentrated under reduced pressure, and the residue was purified by means of HPLC (Merk-Hibar-Lichrospher 100-RP-18, water (0.1% trifluoroacetic acid)/acetonitrile (0.1% trifluoroacetic acid) 80/20→10/90). The following was obtained: 62.

1. stirringThe mixture was stirred at 80° C. for 3 h
2. extractionthe whole was extracted with methylene chloride
3. dry with materialThe organic phase was dried over magnesium sulfate
4. concentrationconcentrated under reduced pressure
5. customthe residue was purified by means of HPLC (Merk-Hibar-Lichrospher 100-RP-18, water (0.1% trifluoroacetic acid)/acetonitrile (0.1% trifluoroacetic acid) 80/20→10/90)
6. customThe following was obtained