[CH2:1]([O:8][C:9]1[C:10](C)=[C:11]([CH:15]=[CH:16][CH:17]=1)[C:12]([OH:14])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:19]O>C1COCC1>[CH2:1]([O:8][C:9]1[CH:17]=[CH:16][C:15]([CH3:19])=[C:11]([CH2:12][OH:14])[CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1To a solution of 3-(benzyloxy)-2-methylbenzoic acid (300 mg) in THF (10 mL) was added a 1.0 M solution of borane-THF complex in THF (1.85 mL) over 30 min. After stirring for 2 hr, methanol (20 mL) was added dropwise to the reaction mixture over 20 min. Methanol (10 mL) was added to the reaction mixture, and the solvent was evaporated under reduced pressure to give the title compound (280 mg) as a white solid. This compound was used for the next step without further purification.
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