A cobaloxime-mediated synthesis of the ras farnesyl-protein transferase inhibitor chaetomellic acid A

Bruce P. Branchaud, Rachel M. Slade

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A short and efficient synthesis of chaetomellic acid A anhydride (2) is reported utilizing a doubly chemoselective cross coupling of myristyl cobaloxime with citraconic anhydride and diphenyl disulfide as the key step. Sulfide oxidation followed by syn elimination provides 2 in 64% overall yield starting from myristyl bromide. Basic hydrolysis of 2 is known to provide chaetomellic acid A dianion (3), the biologically active form.

Original languageEnglish (US)
Pages (from-to)4071-4072
Number of pages2
JournalTetrahedron Letters
Issue number24
StatePublished - Jun 13 1994


ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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