Dichloromethane → HCID 19031016, compound

Participants

Reaction Steps

Dichloromethane (10 ml) and triethylamine (0.15 ml) are added to 6-amino-1-[1-(2,4-dimethoxybenzoyl)-4-piperidinyl]-3,4-dihydrocarbostyril (0.3 g). Acetic anhydride (0.2 ml) is added thereto and the mixture is stirred at room temperature for 1 hour. Water is added to the reaction mixture and extracted with dichloromethane. After concentration, the residue is purified by silica gel column chromatography (solvent; chloroform:methanol=20:1) and further recrystallized from ethanol to give 6-acetylamino-1-[1-(2,4-dimethoxybenzoyl)-4-piperidinyl]-3,4-dihydrocarbostyril (0.25 g) as white powder, m.p. 271°-272° C.

Provenance & Evidence