[CH3:1][C:2]([CH3:16])([CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14]Br)[C:3]([O:5][CH2:6][CH3:7])=[O:4].[Cl:17][C:18]1[CH:23]=[CH:22][C:21]([S:24]([NH2:27])(=[O:26])=[O:25])=[CH:20][CH:19]=1.C(=O)([O-])[O-].[K+].[K+]>>[CH2:6]([O:5][C:3](=[O:4])[C:2]([CH3:16])([CH3:1])[CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][NH:27][S:24]([C:21]1[CH:20]=[CH:19][C:18]([Cl:17])=[CH:23][CH:22]=1)(=[O:26])=[O:25])[CH3:7]Ethyl 2,2-dimethyl-9-bromononanoate (2.0 g, 0.007 mol) was treated with 4-chlorobenzenesulphonamide (3.44 g, 0.018 mol) and potassium carbonate (6.2 g, 0.045 mol) by the method described in Example 5(ii) to give the title compound (1.5 g) as an oil.
Wird geladen…