Design and Function of Supramolecular Recognition Systems Based on Guest-Targeting Probe-Modified Cyclodextrin Receptors for ATP

Kyohhei Fujita, Shoji Fujiwara, Tatsuru Yamada, Yuji Tsuchido, Takeshi Hashimoto, Takashi Hayashita

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

In this study, we have developed a rational design strategy to obtain highly selective supramolecular recognition systems of cyclodextrins (CyDs) on the basis of the lock and key principle. We designed and synthesized dipicolylamine (dpa)-modified -CyD-Cu2+ complexes possessing an azobenzene unit (Cu·1-CyD) and examined how they recognized phosphoric acid derivatives in water. The results revealed that Cu·1-CyD recognized ATP with high selectivity over other phosphoric acid derivatives. The significant blue shift in the UV-vis spectra and 1H NMR analysis suggested that the selective ATP recognition was based on the multipoint interactions between the adenine moiety of ATP and both the CyD cavity and the azobenzene unit in addition to the recognition of phosphoric moieties by the Cu-dpa complex site. Our unique receptor made it capable of distinguishing ATP from AMP and ADP, revealing the discrimination of even a length of one phosphoric group. This study demonstrates that, compared to conventional recognition systems of CyDs, this multipoint recognition system confers a higher degree of selectivity for certain organic molecules, such as ATP, over their similar derivatives.

Original languageEnglish
Pages (from-to)976-981
Number of pages6
JournalJournal of Organic Chemistry
Volume82
Issue number2
DOIs
Publication statusPublished - 2017 Jan 20
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry

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