HCID 68002031、化合物 → HCID 86660602、化合物
反応式
[CH2:1]([O:3][C:4]1[CH:5]=[C:6]([C:13]2[O:17][N:16]=[C:15]([C:18]3[CH:19]=[CH:20][C:21]4[O:25][C:24]([CH:26]([OH:28])C)=[CH:23][C:22]=4[CH:29]=3)[N:14]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH2:11][CH3:12])[CH3:2]>O1CCOCC1.O=[Mn]=O>[CH2:1]([O:3][C:4]1[CH:5]=[C:6]([C:13]2[O:17][N:16]=[C:15]([C:18]3[CH:19]=[CH:20][C:21]4[O:25][C:24]([CH:26]=[O:28])=[CH:23][C:22]=4[CH:29]=3)[N:14]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH2:11][CH3:12])[CH3:2]参加物
4
実験手順
A suspension of the product of Step D (0.13 g; 0.34 mmol) and MnO2 (0.15 g; 1.7 mmol) in dioxane (4 ml) was refluxed for 1 h with stirring. After cooling to room temperature, the insoluble material was removed by filtration, washed with EtOAc (20 ml) and combined filtrates were evaporated to dryness to give the title compound (0.13 g; 100%), as greyish solid. 1H-NMR (CDCl3) 9.91 (s, 1H); 8.59 (s, 1H); 8.33 (dd, 1H, J=2, 9 Hz); 7.63-7.82 (m, 4H); 6.99 (d, 1H, J=9 Hz); 4.14-4.26 (m, 4H); 1.4-1.57 (m, 6H+H2O).