反应详情

In a similar manner to Example 1, methyl 4-bromoacetylphenoxyacetate (1.23 g), a 1:1 mixture containing 4-(1-piperazinyl)quinoline and 4-(1-piperazinyl)-5,6,7,8-tetrahydroquinoline (1.84 g) and acetonitrile (56 ml) yielded, after stirring at room temperature overnight, filtration and evaporation of the filtrate, an orange/brown oily residue which was purified by flash chromatography, first on neutral alumina by elution with 5% v/v methanol/dichloromethane, then on silica by elution with methanol/dichloromethane (0.5% v/v to 5% v/v), and finally by crystallisation of the lower Rf material from methanol/water, to yield the title compound (298 mg) as a cream solid: NMR (CDCl3) δ 1.76(2H,m), 1.89(2H,m), 2.64(2H,m), 2.76(4H,m), 2.95(2H,m), 3.07(4H,m), 3.80(2H,s), 3.81(3H,s), 4.71(2H,s), 6.68(1H,d), 6.95(2H,d), 8.03(2H,d), 8.28(1H,d); m/Z 424 (M+H)+ ; calculated for C24H29N3O4.1.0 H2O: C, 65.3%; H, 7.08%; N, 9.52%; found: C, 65.6%; H, 6.7%; N, 9.3%.

1. customyielded
2. filtrationfiltration and evaporation of the filtrate
3. customan orange/brown oily residue which was purified by flash chromatography, first on neutral alumina by elution with 5% v/v methanol/dichloromethane
4. washon silica by elution with methanol/dichloromethane (0.5% v/v to 5% v/v), and
5. customfinally by crystallisation of the lower Rf material from methanol/water