A series of alpha-branched alpha,beta-unsaturated ketones were prepared via boron trifluoride etherate mediated reaction between arylalkynes and carboxaldehydes. The evaluation of the antiproliferative activity over hematological (NB4) and solid cancer (A549, MCF-7) cell lines provided a structure-activity relationship. 5-Parameter QSAR equations were built which were able to explain 80%-92% of the variance in activity. The resulting selective lead compound showed IC50 value 0.6 mu M against the hematological cell line and did not cause apoptosis, but blocked cell cycle in G0/G1. Moreover, it was demonstrated that this compound enhances and accelerates retinoic acid induced granulocytic differentiation. (C) 2015 Published by Elsevier Masson SAS.
A Unique Cascade Reaction between 3-Arylprop-2-inylcarboxylates and Benzaldehydes Leading to the Formation of Morita–Baylis–Hillman Adducts
作者:Ieva Karpaviciene、Inga Cikotiene
DOI:10.1021/ol303319a
日期:2013.1.4
During an alkyne-carbonyl metathesis reaction between electron-rich 3-arylprop-2-inylcarboxylates and electron-poor benzaldehydes, a smooth migration of carboxylate groups takes place. This unique cascade reaction allows the formation of Morita–Baylis–Hillman (MBH) adducts unavailable via a traditional MBH reaction.