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Figure 3
Synthetic route to 6-Phtpy. Reagents and conditions: (a) i) hexamethylditin, Pd(PPh3)4, DME, reflux, 18 h; ii) 2,6-dibromopyridine, Pd(PPh3)4, toluene, reflux, 24 h, 45%; (b) phenylboronic acid pinacol ester, Pd(PPh3)4, Na2CO3, H2O, toluene, EtOH, reflux, 24 h, 85%. |

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