Acetic Anhydride → benzyl (S)-1-((1S,2R,4R)-2-acetamido-4-(tert-butylamino)cyclohexyl)-2-oxopyrrolidin-3-ylcarbamate

Reaction equation

[NH2:1][C@@H:2]1[CH2:7][C@H:6]([NH:8][C:9]([CH3:12])([CH3:11])[CH3:10])[CH2:5][CH2:4][C@@H:3]1[N:13]1[CH2:17][CH2:16][C@H:15]([NH:18][C:19](=[O:28])[O:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[C:14]1=[O:29].C(N(CC)CC)C.[C:37](OC(=O)C)(=[O:39])[CH3:38]>ClCCl>[C:37]([NH:1][C@@H:2]1[CH2:7][C@H:6]([NH:8][C:9]([CH3:12])([CH3:11])[CH3:10])[CH2:5][CH2:4][C@@H:3]1[N:13]1[CH2:17][CH2:16][C@H:15]([NH:18][C:19](=[O:28])[O:20][CH2:21][C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)[C:14]1=[O:29])(=[O:39])[CH3:38]