[Li+].[OH-].[C:3]1([CH2:9][O:10][C:11]2[CH:20]=[CH:19][C:18]([C:21]([N:23]3[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]3)=[O:22])=[CH:17][C:12]=2[C:13]([O:15]C)=[O:14])[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.Cl>O.O1CCCC1>[C:3]1([CH2:9][O:10][C:11]2[CH:20]=[CH:19][C:18]([C:21]([N:23]3[CH2:24][CH2:25][CH2:26][CH2:27][CH2:28]3)=[O:22])=[CH:17][C:12]=2[C:13]([OH:15])=[O:14])[CH:4]=[CH:5][CH:6]=[CH:7][CH:8]=1A solution of LiOH (534 mg, 12.73 mmol) in water (8 ml) was added to a stirred solution of methyl 2-[(phenylmethyl)oxy]-5-(1-piperidinylcarbonyl)benzoate (may be prepared as described in Description 52; 450 mg, 1.27 mmol) in tetrahydrofuran (2 ml) at room temperature. The mixture was stirred at room temperature for 3 h. The mixture was then acidified by 6N HCl and the precipitate was collected and dried to yield the title compound as a white solid. 400 mg.
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