Diisopropylethylamine → HCID 178455017, compound

Participants

Reaction Steps

Anhydrous dimethylformamide (2 ml) was added to a mixture of 3,6-bis(t-butyldimethylsiloxy)-7,8-didehydro-4,5-epoxy-17-aminopropylmorphinan (0.2 g, 0.359 mmol), diisopropylethylamine (0.07 ml, 0.39 mmol), and 1H-pyrazole-1-carboxamidine hydrochloride (0.06g, 0.39 mmol) and the reaction mixture was stirred overnight at room temperature under nitrogen. The reaction mixture was evaporated to dryness under reduced pressure, and the crude product was chromatographed on silica gel (yield=0.155 g, 72%).

Provenance & Evidence