Ethyl bromoacetate → ethyl 2-(2-cyano-3,5-dimethyl-4-(2-(pyrrolidin-1-ylsulfonyl)benzyl)-1H-pyrrol-1-yl)acetate

Reaction equation

[CH3:1][C:2]1[C:6]([CH2:7][C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[S:14]([N:17]2[CH2:21][CH2:20][CH2:19][CH2:18]2)(=[O:16])=[O:15])=[C:5]([CH3:22])[NH:4][C:3]=1[C:23]#[N:24].C(=O)([O-])[O-].[Cs+].[Cs+].Br[CH2:32][C:33]([O:35][CH2:36][CH3:37])=[O:34]>CCCC[N+](CCCC)(CCCC)CCCC.[I-].CN(C=O)C.C(OCC)(=O)C>[C:23]([C:3]1[N:4]([CH2:32][C:33]([O:35][CH2:36][CH3:37])=[O:34])[C:5]([CH3:22])=[C:6]([CH2:7][C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[S:14]([N:17]2[CH2:21][CH2:20][CH2:19][CH2:18]2)(=[O:16])=[O:15])[C:2]=1[CH3:1])#[N:24]