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(a) P(OMe)3, benzene, reflux, 24h, 90%; (b) NaH, THF, 0 C, then benzaldehyde, 12h, 0 C to rt, 66%; (c) 6N HCl/HOAc, TFA, reflux, 48h then H2 (1 atm), Pd/C (5%), rt, 1h, 50%; (d) MeOH, phenethylamine, 72h, rt then H2 (1 atm), 5% Pd/C (5%), EtOAc, 1h, 50%.
