反应详情

Acetyl chloride (4.6 mL) was added dropwise to a suspension of 4-methoxy-benzo[a]phenazine-11-carboxylic acid (II.1, see Reference Example 1A, 4.9 g) in methanol (50 mL). The mixture was heated to reflux for 4 hours. The volatiles were then removed in vacuo to yield the title compound as a dark solid (quantitative yield).

1. temperatureThe mixture was heated
2. temperatureto reflux for 4 hours
3. customThe volatiles were then removed in vacuo