[OH:1][C:2]1[CH:3]=[C:4]([C:14](=[O:16])[CH3:15])[CH:5]=[C:6]([S:8]([F:13])([F:12])([F:11])([F:10])[F:9])[CH:7]=1.Br[CH2:18][CH2:19][O:20][CH3:21].[H-].[Na+].[Br-]>CN(C=O)C.CC(=O)OCC>[CH3:21][O:20][CH2:19][CH2:18][O:1][C:2]1[CH:3]=[C:4]([C:14](=[O:16])[CH3:15])[CH:5]=[C:6]([S:8]([F:13])([F:9])([F:10])([F:11])[F:12])[CH:7]=11-[3-Hydroxy-5-(pentafluorosulfanyl)phenyl]ethanone (O3.050; 592 mg) and 1-bromo-2-methoxyethane (255 μl) were dissolved in DMF (14.8 ml), and sodium hydride (65 mg) was added. After stirring at RT for 2 h, further bromide (80 μl) was added and the mixture was heated to 50° C. for 12 h. Then the DMF was drawn off and the residue was taken up in EA, washed with water, dried, filtered and concentrated. 578 mg of the title compound were obtained. LC-MS rt: 1.58 min [M+H]+: 321.1 (met. a)
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