[CH3:1][C:2]1[N:7]=[C:6]([C:8]([OH:10])=O)[CH:5]=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12].[N:14]1([CH2:20][CH2:21][NH2:22])[CH2:19][CH2:18][O:17][CH2:16][CH2:15]1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.CC(N(C)C)=O>C(Cl)Cl>[CH3:1][C:2]1[N:7]=[C:6]([C:8]([NH:22][CH2:21][CH2:20][N:14]2[CH2:19][CH2:18][O:17][CH2:16][CH2:15]2)=[O:10])[CH:5]=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12]To a solution of 6-methyl-5-nitropyridine-2-carboxylic acid (0.500 g, 3.0 mmol) in DCM (7 mL) were added 2-morpholin-4-ylethanamine (1.0 mL, 7.7 mmol), TBTU (0.992 g, 3.1 mmol), and DMA (1.34 mL, 7.7 mmol). The reaction mixture was allowed to stir at rt overnight and then quenched with water. The organic solution was separated and the aqueous solution was extracted with DCM. The organic solutions were combined and concentrated. The residue was purified by column chromatography to give 6-methyl-N-(2-morpholin-4-ylethyl)-5-nitropyridine-2-carboxamide (0.27 g, 30%).
불러오는 중…
