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Reagents and conditions: (a) (i) (R)-(−)-α-Methoxy-α-trifluoromethylphenylacetyl chloride, DMAP, DCM, 0 °C; (ii) Silica gel chromatography. (b) Aqueous NaOH, MeOH. (c) Pd/C (10%), H2, MeOH, 1 atm.
