Br[CH2:2][CH2:3][CH2:4][CH2:5][O:6][C:7]1[CH:8]=[C:9]2[C:14](=[CH:15][CH:16]=1)[NH:13][C:12](=[O:17])[CH2:11][CH2:10]2.[Br:18][C:19]1[CH:24]=[CH:23][C:22]([Br:25])=[CH:21][C:20]=1[SH:26]>>[Br:18][C:19]1[CH:24]=[CH:23][C:22]([Br:25])=[CH:21][C:20]=1[S:26][CH2:2][CH2:3][CH2:4][CH2:5][O:6][C:7]1[CH:8]=[C:9]2[C:14](=[CH:15][CH:16]=1)[NH:13][C:12](=[O:17])[CH2:11][CH2:10]2Prepared analogous to Example 122 from 6-(4-bromobutoxy)-3,4-dihydro-carbostyril (m.p.: 142°-147° C.) and 2,5-dibromo-thiophenol.
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