The synthesis of some indole-containing amino acids as linkers for the construction of DNA minor groove binders

A.I. Khalaf, A.R. Pitt, M. Scobie, C.J. Suckling, J. Urwin, R.D. Waigh, S.C. Young, R.V. Fishleigh

Research output: Contribution to journalArticlepeer-review

Abstract

Molecular modelling studies showed that indole dicarboxylic acids are potential linkers for the synthesis of bis-netropsin analogues with a good fit to the minor groove of DNA. To test this hypothesis, 2-carboxyindole-6-acetic acid, indole-2,6-dicarboxylic acid, 6-(2-carboxyethyl)indole-2-carboxylic acid, 6-(2-carboxy-1-ethenyl)indole-2-carboxylic acid were prepared and coupled to 3-[1-methyl-4-(1-methyl-4-aminopyrrole-2-carboxamido)pyrrole-2-carboxamido]dimethylaminopropane. Similarly indole-2,5-dicarboxylic acid was prepared and coupled to 3-[1-methyl-4-(1-methyl-4-aminopyrrple-2-carboxamido)pyrrole-2-carboxamido]propionamidine hydrochloride. The derivatives of 26-28 showed especially strong binding to AT rich regions as shown by footprinting studies.
Original languageEnglish
Pages (from-to)264-265
Number of pages1
JournalInternational Journal of Chemical Research
Volume2000
Issue number6
Publication statusPublished - 1 Jun 2000

Keywords

  • indole dicarboxylic acids
  • synthesis DNA binding agents
  • indole-containing analogues
  • bis-netropsin

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