Pivaloyl chloride → 6-(benzyloxy)-7-(5-(4-fluorobenzyl)thiazol-2-yl)-1-(2-oxo-2-(4-pivaloylpiperazin-1-yl)ethyl)imidazo[1,2-a]pyrimidin-5(1H)-one

Reaction equation

[CH2:1]([O:8][C:9]1[C:14](=[O:15])[N:13]2[CH:16]=[CH:17][N:18]([CH2:19][C:20](=[O:27])[N:21]3[CH2:26][CH2:25][NH:24][CH2:23][CH2:22]3)[C:12]2=[N:11][C:10]=1[C:28]1[S:29][C:30]([CH2:33][C:34]2[CH:39]=[CH:38][C:37]([F:40])=[CH:36][CH:35]=2)=[CH:31][N:32]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CCN(C(C)C)C(C)C.[C:50](Cl)(=[O:55])[C:51]([CH3:54])([CH3:53])[CH3:52].C(=O)(O)[O-].[Na+]>C(Cl)Cl>[CH2:1]([O:8][C:9]1[C:14](=[O:15])[N:13]2[CH:16]=[CH:17][N:18]([CH2:19][C:20](=[O:27])[N:21]3[CH2:26][CH2:25][N:24]([C:50](=[O:55])[C:51]([CH3:54])([CH3:53])[CH3:52])[CH2:23][CH2:22]3)[C:12]2=[N:11][C:10]=1[C:28]1[S:29][C:30]([CH2:33][C:34]2[CH:35]=[CH:36][C:37]([F:40])=[CH:38][CH:39]=2)=[CH:31][N:32]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1