Figure 2. Design and synthesis of novel flexible ARIs.
Reaction conditions: a. EDCI·HCl/HOBt, DCM/DMF (10:1, V/V), 62–63%; b. 4 M HCl/methanol, >98%; c. EDCI·HCl/HOBt, DCM/DMF (10:1, V/V), 65–76%; d. Ac2O or Piv2O, reflux, 83–95%.
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