Acetic Anhydride → HCID 67246034, compound

Participants

Reaction Steps

The compound of example 66b (1 g; 3.8 mmol) in acetic anhydride (20 ml) was heated at 120° C. for 4 h. It was concentrated and purified using flash chromatography (silica gel, 5% CH3CN in dichloromethane) to obtain the title compound. Yield, 0.6 g (55%); mp, 155° C.; MS (ESI−): 286 (M−1), analysis: C14H13N3O4 requires C, 58.53; H, 4.56; N, 14.63; found: C, 58.13; H, 4.79; N, 14.14%.

Provenance & Evidence