Chloroacetyl chloride → HCID 19030793, compound

Participants

Reaction Steps

1-{1-[4-(N-methylamino)benzoyl]-4-piperidinyl}-3,4-dihydrocarbostyril (200 mg) is dissolved in dichloromethane (5 ml) and thereto is added α-chloroacetyl chloride (55 μl) under ice cooling. Continually thereto is added triethylamine (0.23 ml) and the mixture is stirred at room temperature overnight. After the solvent is concentrated, the residue is purified by silica gel column chromatography (solvent: n-hexane:ethyl acetate=1:1) and recrystallized from n-hexane/ethanol to give 1-{1-[4-(N-α-chloroacetyl-N-methylamino)benzoyl)-4-piperidinyl]-3,4-dihydrocarbostyril (0.18 g) as white powder, m.p.: 220°-222° C. (decomposed).

Provenance & Evidence