Lawesson's reagent → 4-(3-{2-[Tert-butoxycarbonyl-(3,4-difluoro-phenyl)-amino]-thioacetylamino}-4-methyl-benzyl)-piperazine-1-carboxylic acid tert-butyl ester

Reaction equation

[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([CH3:21])=[C:17]([NH:22][C:23](=O)[CH2:24][N:25]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[C:26]3[CH:31]=[CH:30][C:29]([F:32])=[C:28]([F:33])[CH:27]=3)[CH:16]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:51])=CC=1>C1(C)C=CC=CC=1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([CH3:21])=[C:17]([NH:22][C:23](=[S:51])[CH2:24][N:25]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[C:26]3[CH:31]=[CH:30][C:29]([F:32])=[C:28]([F:33])[CH:27]=3)[CH:16]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]