Hydrochloride methanol → 4-fluoro-N-[4-methoxy-7-piperidine-4-yl-benzothiazol-2-yl]-benzamide hydrochloride
Reaktionsgleichung
C(OC([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[C:22]3[S:21][C:20]([NH:23][C:24](=[O:32])[C:25]4[CH:30]=[CH:29][C:28]([F:31])=[CH:27][CH:26]=4)=[N:19][C:18]=3[C:17]([O:33][CH3:34])=[CH:16][CH:15]=2)[CH2:10][CH2:9]1)=O)(C)(C)C.[ClH:35].CO>>[ClH:35].[F:31][C:28]1[CH:27]=[CH:26][C:25]([C:24]([NH:23][C:20]2[S:21][C:22]3[C:14]([CH:11]4[CH2:10][CH2:9][NH:8][CH2:13][CH2:12]4)=[CH:15][CH:16]=[C:17]([O:33][CH3:34])[C:18]=3[N:19]=2)=[O:32])=[CH:30][CH:29]=1Komponenten
3
Versuchsvorschrift
0.90 g (0.185 mMol) 4-[2-(4-fluoro-benzoylamino)-4-methoxy-benzothiazol-7-yl]-piperidine-1-carboxylic acid tert-butyl ester were dissolved in 3 ml 2.5 M HCl/MeOH and heated to reflux for 1.5 h. The reaction mixture was concentrated in vacuo and taken up in 4 ml isopropanol. The suspension formed was filtered and the material on the filter was washed with diethyl ether and dried in vacuo. One obtained 55 mg (70%) 4-fluoro-N-[4-methoxy-7-piperidine-4-yl-benzothiazol-2-yl]-benzamide hydrochloride (1:1) as a white solid. F.p.: 310-312° C.