C[O:2][C:3]([CH:5]1[CH2:9][CH2:8][N:7]([CH2:10][C:11](=[O:30])[N:12]2[CH2:17][CH2:16][N:15]([C:18]3[CH:23]=[CH:22][C:21]([C:24]4[N:29]=[CH:28][CH:27]=[CH:26][N:25]=4)=[CH:20][CH:19]=3)[CH2:14][CH2:13]2)[CH2:6]1)=[O:4].[OH-].[Li+].Cl>CO>[O:30]=[C:11]([N:12]1[CH2:17][CH2:16][N:15]([C:18]2[CH:23]=[CH:22][C:21]([C:24]3[N:25]=[CH:26][CH:27]=[CH:28][N:29]=3)=[CH:20][CH:19]=2)[CH2:14][CH2:13]1)[CH2:10][N:7]1[CH2:8][CH2:9][CH:5]([C:3]([OH:4])=[O:2])[CH2:6]11-{2-Oxo-2-[4-(4-pyrimidin-2-yl-phenyl)-piperazin-1-yl]-ethyl}-pyrrolidine-3-carboxylic acid methyl ester (compound 11 from Step 8, 3.3 gm, 8.06 mmol) was dissolved in methanol and 10 ml of 1N lithium hydroxide added. The reaction mixture was stirred for 18 hrs. 10 ml of 1N HCl was added to the reaction mixture and evaporated to a white solid (3.94 gm)
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