Dimethylformamide → HCID 18994620, compound

Participants

Reaction Steps

Into 30 ml of dimethylformamide was dissolved 0.79 g (2.5 mmol) of Compound 1 obtained in Example 1. Furthermore, 0.13 g (3.4 mmol) of 60% sodium hydride was added thereto with stirring at room temperature. The mixture was stirred for 1 hour. Then, 0.41 ml (3.4 mmol) of benzyl bromide was added thereto, followed by further stirring for 1 hour. The mixture was cooled with ice and then water was added thereto. The precipitated solid was collected by filtration. The solid was dried, dissolved into chloroform and purified by silica gel column chromatography (eluent: chloroform) to give 0.25 g (24%) of Compound (II) as the first fractions and 0.40 g (38%) of Compound 3 as the second fractions.

Provenance & Evidence