反应详情

To a solution of 7-chloro-5-[(4-methyl-1-piperazinyl)carbonylmethyl]-1-(2-methoxy-4-trifluoroacetylaminobenzoyl)-2,3,4,5-tetrahydro-1H-benzazepine (0.4 g) in dry tetrahydrofuran (20 ml) are added triphenylphosphine (0.54 g) and o-(2-hydroxyethoxy)toluene (0.29 g) at room temperature. To the mixture is added dropwise a solution of diethyl azodicarboxylate (0.32 ml) in dry tetrahydrofuran (5 ml), and the mixture is stirred at room temperature for 16 hours. To the mixture is added water, and the mixture is extracted with diethyl ether. The ether layer is dried, evaporated to remove the solvent, and the residue is purified by silica gel column chromatography (solvent; dichloromethane:methanol=50:1→30:1) to give 7-chloro-5-[(4-methyl-1-piperazinyl)carbonylmethyl]-1-[2-methoxy-4-{N-[2-(2-methylphenoxy)ethyl]-N-trifluoroacetylamino}benzoyl]-2,3,4,5-tetrahydro-1H-benzazepine (0.46 g) as colorless amorphous.

1. extractionthe mixture is extracted with diethyl ether
2. dry with materialThe ether layer is dried
3. customevaporated
4. customto remove the solvent
5. customthe residue is purified by silica gel column chromatography (solvent; dichloromethane:methanol=50:1→30:1)