3-Fluoropropan-1-amine → 4-(3-Fluoro-propylamino)-8-methoxy-quinoline-3-carboxylic acid ethyl ester
Reaction equation
[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[N:8][C:9]2[C:14]([C:15]=1Cl)=[CH:13][CH:12]=[CH:11][C:10]=2[O:17][CH3:18])=[O:5])[CH3:2].[F:19][CH2:20][CH2:21][CH2:22][NH2:23]>>[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[N:8][C:9]2[C:14]([C:15]=1[NH:23][CH2:22][CH2:21][CH2:20][F:19])=[CH:13][CH:12]=[CH:11][C:10]=2[O:17][CH3:18])=[O:5])[CH3:2]Participants
3
Procedure
4-Chloro-8-methoxy-quinoline-3-carboxylic acid ethyl ester (250 mg, 0.94 mmol) was treated with 3-fluoro-propylamine following general procedure B to afford 4-(3-fluoro-propylamino)-8-methoxy-quinoline-3-carboxylic acid ethyl ester (262 mg). Thus obtained amino-ester was hydrolyzed to the corresponding acid using general procedure D and then transformed into the corresponding ethylamide (196 mg) following general procedure E. The above ethylamide (0.64 mmol) was subjected to reaction with methyl chloroformate according to general procedure F to furnish 3-ethyl-1-(3-fluoro-propyl)-7-methoxy-1H-pyrimido[5,4-c]quinoline-2,4-dione (138 mg). LCMS: m/z 332 [M+1]+.