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Synthesis of acceptor substrates 8 and 14. Reagents and conditions were as follows: PhOH, K2CO3, KI, acetone, reflux temperature (a); POCl3, Et3N, hexanes, 0°C → rt (b); Ac2O, pyridine, rt (c); CF3SO3Si(CH3)3, 1,2-dichloroethane, 50 to 60°C (d); dibenzyl phosphate, 1,2-dichloroethane, rt (e); H2, Pd/C, MeOH, rt (f); compound 2, diisopropylamine, 1,1′-carbonyldiimidazole, THF, rt (g); NaOMe, MeOH, rt, Amberlite IRA-120 resin (Na+ form) (h).
