Total Synthesis and Structure−Activity Investigation of the Marine Natural Product Neopeltolide
作者:Daniel W. Custar、Thomas P. Zabawa、John Hines、Craig M. Crews、Karl A. Scheidt
DOI:10.1021/ja904604x
日期:2009.9.2
The total synthesis and biologicalevaluation of neopeltolide and analogs are reported. The key bond-forming step utilizes a Lewis acid-catalyzed intramolecular macrocyclization that installs the tetrahydropyran ring and macrocycle simultaneously. Independent of each other, neither the macrolide nor the oxazole sidechain substituents of neopeltolide can inhibit the growth of cancer cell lines. The
We describe the synthesis and biological evaluation of (+)-neopeltolide analogues with structural modifications in the oxazole-containing side chain. Evaluation of the antiproliferative activity of newly synthesized analogues against A549 human lung adenocarcinoma cells and PANC-1 human pancreatic carcinoma cells have shown that the C19–C20 and C26–C27 double bonds within the oxazole-containing side