1,2-Benzenediamine, N1-ethyl- → HCID 11856842, compound

Participants

Reaction Steps

Purified water (0.01 ml) and TFA (0.01 ml) were added to a dichloromethane solution that contained the 7-((R)-5-hydroxymethyl-2-oxooxazolidin-3-yl)-3-diethoxymethyl-2H-isoquinolin-1-one (3.3 mg, 0.009 mmol) prepared in step C. The obtained mixture was left at a room temperature for 30 minutes, and the reaction solution was concentrated. The obtained yellow solid and an ethanol solution that contained N-ethyl-1,2-benzenediamine (1.2 mg, 0.009 mmol), which was a known compound described in a publication (Leicester Polytech; Synthetic Communications, vol. 19(7-8), p. 1381, (1989)), were heated to reflux for 17 hours. Thereafter, the reaction solution was concentrated. The obtained residue was purified by preparative silica gel TLC (dichloromethane:methanol=20:1), so as to obtain 3-(1-ethyl-1H-benzoimidazol-2-yl)-7-((R)-5-hydroxymethyl-2-oxooxazolidin-3-yl)-2H-isoquinolin-1-one (2.7 mg, yield: 74%) in the form of a yellow solid.

Provenance & Evidence