... Chemistry. ... between 6(a) and 4-(benzyloxy)phenol to form 17 (Scheme 3). Debenzylation followed to give the free phenol 18 which was ... Scheme 3 Reagents and conditions: (i) DEAD, triphenylphosphine polystyrene, 4-(benzyloxy)phenol, 82%; (ii) 5% Pd/C, THF–MeOH, 76%; ( ...