反应详情

38.0 g (170.8 mmol) of the compound from Example 32A and 58.5 ml (50.3 g, 341.6 mmol) dimethylformamide diethyl acetal are stirred at a bath temperature of 100° C. for 16 h. For working up, the cooled reaction solution is concentrated on a rotary evaporator and the residue is dried in vacuo.

1. customthe cooled reaction solution
2. concentrationis concentrated on a rotary evaporator
3. customthe residue is dried in vacuo