反应详情

Concentrated hydrochloric acid (0.060 ml; 0.72 mmol) was added to a solution of 1,3-bis[1-[4-(3,4,5-trimethoxyphenyl)benzoyl]-4-piperidinyl]-2-(dimethylamino)propane (189 mg; 0.24 mmol) in ethanol (5 ml) and the reaction mixture was concentrated under reduced pressure. A process of adding ethanol (10 ml) to the residue and concentrating the mixture under reduced pressure was performed twice to obtain the title compound as a pale yellow amorphous powder.

1. concentrationthe reaction mixture was concentrated under reduced pressure
2. concentrationA process of adding ethanol (10 ml) to the residue and concentrating the mixture under reduced pressure