[F:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][S:9]([CH2:12][CH2:13][C:14]([OH:16])=O)(=[O:11])=[O:10])=[C:4]([C:17]([F:20])([F:19])[F:18])[CH:3]=1.Cl.[CH2:22]([O:24][C:25](=[O:29])[C@H:26]([CH3:28])[NH2:27])[CH3:23].O.OC1C2N=NNC=2C=CC=1.C(N(CC)CC)C.C1(N=C=NC2CCCCC2)CCCCC1>>[CH2:22]([O:24][C:25](=[O:29])[CH:26]([NH:27][C:14](=[O:16])[CH2:13][CH2:12][S:9](=[O:10])(=[O:11])[NH:8][C:5]1[CH:6]=[CH:7][C:2]([F:1])=[CH:3][C:4]=1[C:17]([F:20])([F:19])[F:18])[CH3:28])[CH3:23]Under the conditions of Example 2(a), 3.152 g (10 mmol) of 3-[N-(4-fluoro-2-trifluoromethylphenyl)sulfamoyl]propionic acid, 1.536 g (10 mmol) of L-alanine ethyl ester hydrochloride, 1.531 g (10 mmol) of hydroxybenzotriazole, hydrate, as well as 1.012 g (10 mmol) of triethylamine and 2.063 g (10 mmol) of dicyclohexylcarbodiimide are reacted and worked up analogously. The crude product is purified by column chromatography on silica gel. The title compound is eluted with ethyl acetate.
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