[F:1][C:2]([F:15])([F:14])[S:3]([O:6]S(C(F)(F)F)(=O)=O)(=[O:5])=[O:4].[N:16]1([C:22]2[CH:23]=[C:24](O)[CH:25]=[CH:26][CH:27]=2)[CH2:21][CH2:20][O:19][CH2:18][CH2:17]1.C(N(CC)CC)C>ClCCl>[F:1][C:2]([F:15])([F:14])[S:3]([O:6][C:26]1[CH:25]=[CH:24][CH:23]=[C:22]([N:16]2[CH2:17][CH2:18][O:19][CH2:20][CH2:21]2)[CH:27]=1)(=[O:5])=[O:4]2.18 ml (12.9 mmol) of trifluoromethanesulphonic anhydride are slowly added dropwise to a solution, cooled to −10° C., of 1.54 g (8.6 mmol) of 3-(4-morpholinyl)-phenol and 3.59 ml (25.8 mmol) of triethylamine in 10 ml of dichloromethane. The mixture is stirred at −10° C. for 30 min and then at 0° C. for 30 min. It is washed successively with 10% strength sodium bicarbonate solution, water and saturated sodium chloride solution, dried over sodium sulphate and concentrated in vacuo, and the residue is dried under high vacuum. 2.41 g (90.1% of theory) of the title compound are obtained.
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