Cesium carbonate → (S)-di-tert-butyl (3-(2-fluoro-4-(5-(4-(5-fluoropyridin-2-yl)-2-oxooxazolidin-3-yl)pyrazolo[1,5-a]pyrimidin-3-yl)phenyl)-1H-1,2,4-triazol-1-yl)methyl phosphate

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[F:1][C:2]1[CH:3]=[C:4]([C:13]2[CH:14]=[N:15][N:16]3[CH:21]=[CH:20][C:19]([N:22]4[C@@H:26]([C:27]5[CH:32]=[CH:31][C:30]([F:33])=[CH:29][N:28]=5)[CH2:25][O:24][C:23]4=[O:34])=[N:18][C:17]=23)[CH:5]=[CH:6][C:7]=1[C:8]1[N:12]=[CH:11][NH:10][N:9]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[P:41]([O:53][CH2:54]Cl)([O:48][C:49]([CH3:52])([CH3:51])[CH3:50])([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])=[O:42]>CN(C=O)C.CCOC(C)=O>[P:41]([O:53][CH2:54][N:10]1[CH:11]=[N:12][C:8]([C:7]2[CH:6]=[CH:5][C:4]([C:13]3[CH:14]=[N:15][N:16]4[CH:21]=[CH:20][C:19]([N:22]5[C@@H:26]([C:27]6[CH:32]=[CH:31][C:30]([F:33])=[CH:29][N:28]=6)[CH2:25][O:24][C:23]5=[O:34])=[N:18][C:17]=34)=[CH:3][C:2]=2[F:1])=[N:9]1)([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])([O:48][C:49]([CH3:50])([CH3:51])[CH3:52])=[O:42]