Combinatorial discovery of novel fluorescent dyes based on Dapoxyl™

Complexation induced fluorescence and acid–base properties of dapoxyl dye with γ-cyclodextrin: a drug-binding application using displacement assays

The drug binding ability of γ-cyclodextrin in physiological conditions is evaluated experimentally and computationally via the dye displacement principle using dapoxyl dye.

Rapid synthesis, screening, and identification of xanthone- and xanthene-based fluorophores using click chemistry

A panel of new fluorophores with emission wavelengths from blue to yellow regions using the Cu(I)-catalyzed 1,3-dipolar cycloaddition reaction of alkyne-functionalized xanthones and xanthenes with various azides have been synthesized. Screening of the "click" products led to the identification of "hit" fluorophores which showed a fluorescence increase upon triazole formation. These novel "click" fluorophores could potentially be used for bioconjugation and bioimaging purposes.

Combinatorial synthesis of benzimidazolium dyes and its diversity directed application toward GTP-selective fluorescent chemosensors

Highly selective fluorescence turn-on GTP sensor, GTP Green, was discovered by a diversity directed sensor approach, combined by solid-phase combinatorial synthesis of a benzimidazolium library and high-throughput screening.

Some New Routes for the Preparation of 3-Amino-2-phenyl-4(1H)-quinolinones from Anthranilamides

[reaction: see text] Several new routes for the preparation of 3-amino-2-phenyl-4-1(H)-quinolinone 7a are compared. The most efficient is based on the cyclization of phenacyl anthranilamide 2a in the presence of (poly)phosphoric acid. The mechanisms of the rearrangements involved are discussed on the basis of the structures of isolated heterocyclic intermediates. The best methodology for the preparation of the title compound 7a was verified, and 10 other quinolinones 7 were prepared.