Formal Total Synthesis of (+)-Neopeltolide

被引:32
作者
Athe, Sudhakar [1 ]
Chandrasekhar, Balla [1 ]
Roy, Saumya [1 ]
Pradhan, Tapan Kumar [1 ]
Ghosh, Subhash [1 ]
机构
[1] CSIR Indian Inst Chem Technol, Hyderabad 500007, Andhra Pradesh, India
关键词
STEREOSELECTIVE-SYNTHESIS; MACROLIDE (+)-NEOPELTOLIDE; BIOLOGICAL EVALUATION; KINETIC RESOLUTION; MACROLACTONE CORE; TERMINAL EPOXIDES; NEOPELTOLIDE; ANALOGS; EFFICIENT;
D O I
10.1021/jo301425c
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
This paper describes the formal total synthesis of (+)-neopeltolide, a cytotoxic macrolide isolated from the marine sponge Neopeltidae. The key features of the synthesis include an asymmetric Evans alkylation to fix the C9-methyl center, Jacobsen hydrolytic kinetic resolution of terminal epoxides followed by their regioselective opening to fix the stereocenters at the C11 and C13 positions, respectively, a Pd-catalyzed oxa-Michael reaction to construct the tetrahydropyran ring, and Yamaguchi macrolactonization to form the macrocyclic core of the molecule.
引用
收藏
页码:9840 / 9845
页数:6
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