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Synthesis of compounds 29 and 32. Reagents and conditions. a) ethyl acrylate, TRITON B, DMF, 90 °C. b) TMSA, CuI, Pd(Ph3)2Cl2, DIPEA, THF. c) KF, EtOH. d) AdN3, CuSO4, sodium ascorbate, tBuOH/H2O, 1/1. e) 2-furyl boronic acid, Pd(OA c)2, PPh3, 1N Na2CO3, DME, EtOH, MW, 150 °C. f) i. (5-iodopentan-2-yloxy)(tert-butyl)dimethylsilane, K2CO3, DMF, 90 °C;. ii. TBAF, THF.
