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. 2015 Oct 23;20(10):19361–19371. doi: 10.3390/molecules201019361

Scheme 1.

Scheme 1

Synthetic route of target compounds 6af and 9ae. Reagents and conditions: (a) t-BuOK, NaI, N,N-Dimethylformamide (DMF); (b) Toluene, reflux, 6 h; (c) Chlorobenzene, reflux, 30 h; (d) EtOH, FeCl3·6H2O, N2H4·H2O, reflux, 8 h.