Acetonitrile → (2S,4S)-2-(2,5-dioxoimidazolidin-1-yl)methyl-1-(4-nitrobenzyloxycarbonyl)-4-(triphenylmethylthio)pyrrolidine

Reaction equation

ClCC(N[C@:6]1([CH3:44])[CH2:10][C@H:9]([S:11][C:12]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH2:8][N:7]1[C:31]([O:33][CH2:34][C:35]1[CH:40]=[CH:39][C:38]([N+:41]([O-:43])=[O:42])=[CH:37][CH:36]=1)=[O:32])=O.[O-:45][C:46]#[N:47].[K+].[C:49]([O:52]CC)(=O)[CH3:50].C(#[N:57])C>[I-].C([N+](CCCC)(CCCC)CCCC)CCC>[O:45]=[C:46]1[NH:57][CH2:50][C:49](=[O:52])[N:47]1[CH2:44][C@@H:6]1[CH2:10][C@H:9]([S:11][C:12]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)([C:25]2[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=2)[C:19]2[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=2)[CH2:8][N:7]1[C:31]([O:33][CH2:34][C:35]1[CH:36]=[CH:37][C:38]([N+:41]([O-:43])=[O:42])=[CH:39][CH:40]=1)=[O:32]