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Total Synthesis of 1 and its Analogs
Reagents: (i) K2CO3, MOMCl, acetone, (ii) EtOH, 50% KOH / H2O, 4-benzyloxybenzaldehyde; (iii) I2, DMSO or pyridine; (iv) 10% Pd-C / H2; (v) TAIB (1 equiv), CH3CN/H2O 9/1 (12→14, 13→15) or MeOH (13→16), 25 °C; (vi) 15% cHCl / iPrOH (14→1).
