反应详情

A mixture of compound 138B (50 mg), MeOH (12 mL), Conc. H2SO4 (2 drops), and DMF (2 drops) was heated to reflux over 18 h. LC/MS indicated the reaction was complete. The reaction mixture was concentrated in vacuo to give a brown oil (47.5 mg). HPLC retention time: 3.05 min., condition: A. M+: 268.

1. temperaturewas heated
2. temperatureto reflux over 18 h
3. concentrationThe reaction mixture was concentrated in vacuo