[CH2:1]([O:3][C:4]([C@@H:6]1[CH2:10][C@@H:9](OS(C)(=O)=O)[CH2:8][C@H:7]1[C:16](=[O:21])[NH:17][CH2:18][C:19]#[N:20])=[O:5])[CH3:2].[Cl:22][C:23]1[CH:28]=[CH:27][C:26]([SH:29])=[C:25]([CH3:30])[CH:24]=1>>[CH2:1]([O:3][C:4]([C@@H:6]1[CH2:10][C@H:9]([S:29][C:26]2[CH:27]=[CH:28][C:23]([Cl:22])=[CH:24][C:25]=2[CH3:30])[CH2:8][C@H:7]1[C:16](=[O:21])[NH:17][CH2:18][C:19]#[N:20])=[O:5])[CH3:2]The reaction of (1R,2R,4S)-2-(cyanomethyl-carbamoyl)-4-methanesulfonyloxy-cyclopentanecarboxylic acid ethyl ester with 4-chloro-2-methyl-benzenethiol performed in analogy to example 1, step 5, yielded the title compound as a colorless solid. MS: 381.4 (M+H)+.
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