6-Hydroxy-1-naphthoic acid → 5-(3,4-Dimethoxyphenyl)-2-{1-[(6-hydroxynaphthalen-1-yl)carbonyl]piperidin-4-yl}-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one
Reaction equation
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].[OH:26][C:27]1[CH:28]=[C:29]2[C:34](=[CH:35][CH:36]=1)[C:33]([C:37](O)=[O:38])=[CH:32][CH:31]=[CH:30]2>>[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:37]([C:33]4[C:34]5[C:29](=[CH:28][C:27]([OH:26])=[CH:36][CH:35]=5)[CH:30]=[CH:31][CH:32]=4)=[O:38])[CH2:19][CH2:18]3)[N:16]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH3:11]Participants
3
Reactant 2
Product 1
Procedure
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 6-hydroxynaphthalene-1-carboxylic acid as starting compounds. The crude product is purified by chromatography (amino phase silica gel and DCM) to yield the title compound.