Synthesis, crystal structure and antimalarial activity of functionalized spiro-1,2,4,5-tetraoxacycloalkanes from unsaturated hydroperoxy peracetals

Yuji Nonami, Takahiro Tokuyasu, Araki Masuyama, Masatomo Nojima, Kevin J. McCullough, Hye Sook Kim, Yusuke Wataya

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Treatment of unsaturated hydroperoxy peracetals with bis(sym- collidine)iodine(I) hexafluorophosphate affords a series of iodine-containing spiro-1,2,4,5-tetraoxacycloalkane derivatives in high yield. In addition, ozonolysis of unsaturated hydroperoxy peracetals in AcOH-CH2Cl2 also results in the formation of spiro-1,2,4,5-tetraoxacycloalkanes. Two of the new compounds, 3-methyl-3,methyldioxy-1,2,6,7-tetraoxaspiro[7.11]nonadecane and dimethyl-4-iodo-1,2,6,7-tetraoxaspiro[7.11]nonadecane, exhibit significant in vitro antimalarial activity against P. falciparum with EC50 values of ca. 10-7 M. (C) 2000 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)4681-4684
Number of pages4
JournalTetrahedron Letters
Issue number23
Publication statusPublished - Jun 12 2000
Externally publishedYes


ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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