Water → HCID 178520020, compound

Participants

Reaction Steps

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.

Provenance & Evidence