Scheme 1.
Synthesis of compounds 1–15. Reagents and conditions: (i) alkenyl halide, DMF, 80 °C, 16 h; (ii) meta-chloroperoxybenzoic acid, DCM, room temperature (R.T.) 16 h; (iii) benzylamine derivatives, n-propanol, pyridine, 97 °C.
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