[CH2:1]([O:3][C:4](=[O:37])[C:5]([CH3:36])([O:28][C:29]1[CH:30]=[C:31]([CH3:35])[CH:32]=[CH:33][CH:34]=1)[CH:6]([C:14]1[CH:19]=[CH:18][C:17]([O:20]CC2C=CC=CC=2)=[CH:16][CH:15]=1)OC(=O)C(F)(F)F)[CH3:2]>C(OCC)(=O)C.[Pd]>[CH2:1]([O:3][C:4](=[O:37])[C:5]([O:28][C:29]1[CH:30]=[C:31]([CH3:35])[CH:32]=[CH:33][CH:34]=1)([CH3:36])[CH2:6][C:14]1[CH:19]=[CH:18][C:17]([OH:20])=[CH:16][CH:15]=1)[CH3:2]3-(4-Benzyloxyphenyl)-2-methyl-2-m-tolyloxy-3-(2,2,2-trifluoroacetoxy)propionic acid ethyl ester (2.1 mmol) was dissolved in ethyl acetate (30 mL) and treated with 5% palladium on carbon (300 mg), and stirred under an atmosphere of hydrogen for 20 h. The suspension was filtered through celite and concentrated in vacuo to an oil.
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