[CH2:1]([O:3][CH:4]([O:7][CH2:8][CH3:9])[CH2:5][NH2:6])[CH3:2].[N:10]1[CH:15]=[CH:14][C:13]([CH:16]=O)=[CH:12][CH:11]=1>>[CH2:1]([O:3][CH:4]([O:7][CH2:8][CH3:9])[CH2:5][NH:6][CH2:16][C:13]1[CH:14]=[CH:15][N:10]=[CH:11][CH:12]=1)[CH3:2]According to the procedure described in the synthesis method of Compound IX-2, 2,2-diethoxyethanamine (162.8 ml, 1120 mmol) was reacted with 4-pyridinecarboxaldehyde (120 g, 1120 mmol) and the obtained residue was purified by silica gel column chromatography (eluent: ethyl acetate and ethyl acetate:ethanol=15:1) to obtain the title compound (110 g, 44%).
Wird geladen…