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a Reagents: (a) NaOH, C6H5CHO; (b) C6H5COCl; (c) LiHMDS, THF, −78 °C; CH3OC6H4CH2Br; (d) conc HCl; (e) Br2, HCl; (f) HCHO, HBr, H2O, CF3CO2H; (g) conc HBr, reflux; (h) H2, Pd/C, CH3OH; (i) (Boc)2O, DMF, Et3N; (j) CF3CO2H, CH2Cl2; (k) Raney Ni, H2, CH3OH, HCHO; (l) 12 M HCl, THF.
