2,6-Dimethoxypyridine-3-carboxylic acid → 5-(3,4-Dimethoxyphenyl)-2-{1-[(2,6-dimethoxypyridin-3-yl)carbonyl]piperidin-4-yl}-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one
Reaktionsgleichung
Cl.[CH3:2][O:3][C:4]1[CH:5]=[C:6]([C:12]2[C:13]([CH3:25])([CH3:24])[C:14](=[O:23])[N:15]([CH:17]3[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]3)[N:16]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH3:11].[CH3:26][O:27][C:28]1[N:36]=[C:35]([O:37][CH3:38])[CH:34]=[CH:33][C:29]=1[C:30](O)=[O:31]>>[CH3:2][O:3][C:4]1[CH:5]=[C:6]([C:12]2[C:13]([CH3:25])([CH3:24])[C:14](=[O:23])[N:15]([CH:17]3[CH2:22][CH2:21][N:20]([C:30]([C:29]4[C:28]([O:27][CH3:26])=[N:36][C:35]([O:37][CH3:38])=[CH:34][CH:33]=4)=[O:31])[CH2:19][CH2:18]3)[N:16]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH3:11]Komponenten
3
Edukt 2
Produkt 1
Versuchsvorschrift
The title compound is prepared analogously as described for GP2-WU2 using 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one (compound B1) and 2,6-dimethoxynicotinic acid as starting compounds. The crude product is purified by chromatography (silica gel and DCM/diethyl ether/methanol=7:3:2) to yield the title compound.