Cesium carbonate → (2S,4S)-2-(2-(9-((2S,4S)-1-(tert-butoxycarbonyl)-4-(methoxymethyl)pyrrolidine-2-carbonyloxy)-8-oxo-8,9,10,11-tetrahydro-5H-dibenzo [c,g]chromen-3-yl)-2-oxoethyl) 1-tert-butyl 4-methylpyrrolidine-1,2-dicarboxylate

Reaction equation

[CH3:1][C@@H:2]1[CH2:6][N:5]([C:7]([O:9][C:10]([CH3:13])([CH3:12])[CH3:11])=[O:8])[C@H:4]([C:14]([O:16][CH2:17][C:18]([C:20]2[CH:21]=[CH:22][C:23]3[C:32]4[CH:31]=[C:30]5[CH2:33][CH2:34][CH:35](Br)[C:36](=[O:37])[C:29]5=[CH:28][C:27]=4[O:26][CH2:25][C:24]=3[CH:39]=2)=[O:19])=[O:15])[CH2:3]1.[C:40]([O:44][C:45]([N:47]1[CH2:51][C@@H:50]([CH2:52][O:53][CH3:54])[CH2:49][C@H:48]1[C:55]([OH:57])=[O:56])=[O:46])([CH3:43])([CH3:42])[CH3:41].C([O-])([O-])=O.[Cs+].[Cs+]>C(Cl)Cl>[CH3:1][C@@H:2]1[CH2:6][N:5]([C:7]([O:9][C:10]([CH3:13])([CH3:12])[CH3:11])=[O:8])[C@H:4]([C:14]([O:16][CH2:17][C:18]([C:20]2[CH:21]=[CH:22][C:23]3[C:32]4[CH:31]=[C:30]5[CH2:33][CH2:34][CH:35]([O:57][C:55]([C@@H:48]6[CH2:49][C@H:50]([CH2:52][O:53][CH3:54])[CH2:51][N:47]6[C:45]([O:44][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:46])=[O:56])[C:36](=[O:37])[C:29]5=[CH:28][C:27]=4[O:26][CH2:25][C:24]=3[CH:39]=2)=[O:19])=[O:15])[CH2:3]1