CS(C)=O.C(Cl)(=O)C(Cl)=O.[F:11][C:12]1[CH:17]=[CH:16][C:15]([C:18]([CH3:22])([CH3:21])[CH2:19][OH:20])=[CH:14][CH:13]=1.CCN(CC)CC>C(Cl)Cl>[F:11][C:12]1[CH:13]=[CH:14][C:15]([C:18]([CH3:22])([CH3:21])[CH:19]=[O:20])=[CH:16][CH:17]=1A solution of DMSO (1.7 eq.) in DCM (0.5 M) was treated at −78° C. with a 2 M solution of oxalyl chloride in DCM (1.4 eq.). The reaction was stirred for 5 min, and a solution of 2-(4-fluorophenyl)-2-methylpropan-1-ol (1 eq.) in DCM (3 M) added to the reaction mixture. After stirring for 10 min, NEt3 (2.4 eq.) was added and the reaction mixture warmed to 0° C., stirred one hour, removed the cooling bath and stirred for one additional hour. The mixture was diluted with DCM, extracted with bleach/water, 1 M citric acid, water, dried (Na2SO4), concentrated.
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