Scheme 2.
Synthesis of Compounds 17a–f from 13aa
aReagents and conditions: (a) acryloyl chloride, NaHCO3 aq., THF, ice bath; (b) different anilines, TFA, sec-BuOH, reflux.
Synthesis of Compounds 17a–f from 13aa
aReagents and conditions: (a) acryloyl chloride, NaHCO3 aq., THF, ice bath; (b) different anilines, TFA, sec-BuOH, reflux.