Abstract
Abstract
α-Aminoxy acid conjugates and hybrid α-aminoxy dipeptide
conjugates showing blue to green fluorescence (with quantum yields
0.23-0.71) were synthesized (75-92% yield)
from N-acylbenzotriazoles. 7-Methoxycoumarin
derivatives were obtained (quantum yields φ 0.35-0.71)
that could be suitable for peptide assays. The wavelengths of the
absorption maxima (λ
Abs
) and the fluorescence
emission maxima (λ
Em
) and the quantum yields
(φ) of some coumarin-3-ylcarbonyl aminoxy acid conjugates
were comparable to those of the analogous amino acid derivatives.