The stereocontrolled totalsynthesis of the originally proposed (1) and correct (2) structures of (+)‐neopeltolide, a novel marine macrolide natural product with highly potent antiproliferative activity against several cancer cell lines as well as potent antifungal activity, has been achieved by exploiting a newly developed Suzuki–Miyaura coupling/ring‐closing metathesis strategy. Alkylborate 44, which
Total Synthesis and Structural Revision of the Marine Macrolide Neopeltolide
作者:Daniel W. Custar、Thomas P. Zabawa、Karl A. Scheidt
DOI:10.1021/ja710080q
日期:2008.1.1
The totalsynthesis and structural revision of the marine natural product neopeltolide is reported. The key bond-forming step involves a Lewis acid-catalyzed intramolecular cyclization to install the tetrahydropyran ring and the macrocycle simultaneously. This type of cyclization is the first of its kind and assembles the carbon backbone of the natural product efficiently. The synthesis of the reported
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