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Synthesis of biphenyl derivatives containing a substituted biaryl side chain.
Reagents and conditions: a pyridine, DCM, r. t., 4 h, 56%~81%; b Et3N, MeOH, r. t., 24 h, 85%~90%; c Pd/C, MeOH, r. t., 12 h, 76%, d Ac2O, pyridine, r. t., 12 h, 76%.
