Lathrophytoic acids A and B: two novel polyprenylated phloroglucinol derivatives from Kielmeyera lathrophyton

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Article

de Almeida, Miqueias F.¹  Guedes, Maria L. S.²  Cruz, Frederico G.¹ 

[1] Univ Fed Bahia, Gesnat Inst Quim, BR-40170115 Salvador, BA, Brazil

[2] Univ Fed Bahia, Inst Biol, BR-40170115 Salvador, BA, Brazil

关键词: Clusiaceae;    Kielmeyera;    Lathrophytoic acid;    Phloroglucinol derivative;    Natural product;   

DOI  :  10.1016/j.tetlet.2011.10.102

来源: Elsevier

【 摘 要 】

Two novel polyprenylated phloroglucinol derivatives were isolated from the trunk of Kielmeyera lathrophyton (Clusiaceae). Lathrophytoic acid A presented an unusual caged carbon skeleton with a 1,3-dione-4-cyclopentanol moiety. Lathrophytoic acid B exhibited a highly substituted bicycle[3.3.1]nonane skeleton and an isopropylfuran system which was formed by unusual cyclization of a prenyloxy side chain. (C) 2011 Elsevier Ltd. All rights reserved.

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