Ring-closing metathesis as key step in the synthesis of Luffarin I, 16-epi-Luffarin I and Luffarin A

被引:5
作者
Urosa, Aitor [1 ]
Marcos, Isidro S. [1 ]
Diez, David [1 ]
Plata, Gabriela B. [2 ]
Padron, Jose M. [2 ]
Basabe, Pilar [1 ]
机构
[1] Univ Salamanca, Fac Chem, Dept Organ Chem, E-37008 Salamanca, Spain
[2] Univ La Laguna, BioLab, Ctr Invest Biomed Canarias CIBICAN, Inst Univ Bioorgan Antonio Gonzalez, E-38207 San Cristobal la Laguna, Spain
关键词
Ring-closing metathesis; Marine natural products; Luffarins; Yamaguchi esterefication; Cancer; Faulkner oxidation; MARINE SPONGE; SESTERTERPENES; LACTONES;
D O I
10.1007/s11030-015-9638-7
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Natural sesterterpenolides, luffarin I and luffarin A, from Luffariella geometrica have been synthesized, and this is the first reported synthesis of luffarin A. The Yamaguchi esterification of the nor-diterpenic fragment, obtained from 2.8-15 M, with the appropriate furane alcohols yielded the necessary diene intermediates for the synthesis of the target molecules. The key strategic step in this synthesis was the ring-closing metathesis (RCM) reaction of the diene intermediates. This strategy allowed for the synthesis of 16-epi-luffarin I and analogues for structure-activity relationship (SAR) studies. The most active compound exhibited antiproliferative activity against a panel of six human solid tumour cell lines with values in the range 2.8-15 M.
引用
收藏
页码:369 / 377
页数:9
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