Synthesis of Novel 11-Desmethyl Analogues of Laulimalide by Nozaki−Kishi Coupling
摘要:
As a first entry into structurally simplified analogues of the anticancer agent laulimalide, 11-desmethyl compounds 2 and 3 were selected by molecular modeling. The unfavorable diastereoselectivity in the key synthetic step, a Nozaki-Kishi coupling between macrocyclic aldehyde 4 and vinyl iodide 5, was overcome either by use of catalytic amounts of DIANANE-type ligands or L-Selectride reduction of the derived enone. This methodology should allow modular introduction of other, unnatural, side chains.
Synthesis of Novel 11-Desmethyl Analogues of Laulimalide by Nozaki−Kishi Coupling
摘要:
As a first entry into structurally simplified analogues of the anticancer agent laulimalide, 11-desmethyl compounds 2 and 3 were selected by molecular modeling. The unfavorable diastereoselectivity in the key synthetic step, a Nozaki-Kishi coupling between macrocyclic aldehyde 4 and vinyl iodide 5, was overcome either by use of catalytic amounts of DIANANE-type ligands or L-Selectride reduction of the derived enone. This methodology should allow modular introduction of other, unnatural, side chains.
Design, synthesis and biological evaluation of novel, simplified analogues of laulimalide: modification of the side chain
作者:Ian Paterson、Dirk Menche、Anders E. Håkansson、Adrian Longstaff、David Wong、Isabel Barasoain、Rubén M. Buey、J. Fernando Díaz
DOI:10.1016/j.bmcl.2005.03.018
日期:2005.5
Novel, simplified analogues of the microtubule-stabilizing anticancer agent laulimalide, including the first derivatives with unnatural sidechains, were designed by molecular modelling, synthesized by a late-stage diversification strategy, and evaluated in vitro for growth inhibition of human ovarian carcinoma cell lines (A2780, A2780/AD10).