Total Synthesis and Structural Revision of Cephalosporolide J

被引:0
作者
Ota, Koichiro [1 ]
Kamaike, Kazuo [1 ]
Miyaoka, Hiroaki [1 ]
机构
[1] Tokyo Univ Pharm & Life Sci, Sch Pharm, 1432-1 Horinouchi, Hachioji, Tokyo 1920392, Japan
关键词
cephalosporolide J; polyketide; bicyclo[3; 3; 0]furanolactone; total synthesis; structural revision; MARINE-DERIVED FUNGUS; STYRYL-LACTONES; STEREOSELECTIVE-SYNTHESIS; GONIOFUFURONE; INTERMEDIATE;
D O I
10.1055/a-1967-1284
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Herein, we report the first total synthesis of cephalosporo-lide J, which is a deep sea sediment derived polyketide harboring aunique bicyclo[3.3.0]furanolactone moiety. The adopted syntheticstrategy consisted of the alkynylation of gamma-lactone with lithium alkynyl-trifluoroborate followed by a spiroketalization triggered by hydrogena-tion of the triple bond. Through this synthesis, the correct structure ofcephalosporolide J is shown to be that of the 9-epi stereoisomer of thestructure originally proposed.
引用
收藏
页码:271 / 276
页数:6
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