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. Author manuscript; available in PMC: 2016 Aug 28.
Published in final edited form as: Eur J Med Chem. 2015 Jul 8;101:525–533. doi: 10.1016/j.ejmech.2015.07.007

Scheme 1.

Scheme 1

Synthesis of compounds 3–22.

Reagents and conditions: i) 15% K2CO3, i-propanol, refluxing, 24 h. ii) SOCl2, Et3N, CHCl3, refluxing, 5 h. iii) amine or alcohol materials, DMAP, CHCl3, refluxing, 5 h.