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Reagents and conditions: (i) BnOH (1.5 equiv), DMAP (1.0 equiv), EDCI (2.5 equiv), CH2Cl2, 0° to r.t., 2 h, 70% yield; (ii) iodomethylpivalate (POMI) (2.0 equiv), DIPEA (2.0 equiv), DMF, r.t., 12 h, 60% yield; (iii) 10% Pd•C, MeOH, r.t., 1 h, 68% yield.
