C([O:5][C:6](=[O:38])[CH:7]([CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][N:27]1[C:31](=[O:32])[C:30]2=[CH:33][CH:34]=[CH:35][CH:36]=[C:29]2[C:28]1=[O:37])[C:8]([O:10]C(C)(C)C)=[O:9])(C)(C)C.FC(F)(F)C(O)=O>ClCCl>[C:28]1(=[O:37])[N:27]([CH2:26][CH2:25][CH2:24][CH2:23][CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][CH2:17][CH2:16][CH2:15][CH:7]([C:6]([OH:38])=[O:5])[C:8]([OH:10])=[O:9])[C:31](=[O:32])[C:30]2=[CH:33][CH:34]=[CH:35][CH:36]=[C:29]12Following general procedure D, 16.0 mmol (8.45 g) of 5c and 160 mmol (11.9 mL) of trifluoroacetic acid were reacted in 12 mL of dichloromethane at room temperature and the mixture was processed. Yield 100%.
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