中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3,4-dichloro-2H-chromen-2-one | 5117-56-6 | C9H4Cl2O2 | 215.036 |
香豆素 | coumarin | 91-64-5 | C9H6O2 | 146.145 |
4-氯-3-甲酰基香豆素 | 4-chloro-3-formylcoumarin | 50329-91-4 | C10H5ClO3 | 208.601 |
Fluorophores based on 4-triazolyl, 7-hydroxy-4-triazolylmethyl, 4-O-triazolylmethyl, and 7-O-triazolylmethyl coumaryl-tagged amino acids and dipeptides were synthesized by copper-catalyzed [3 + 2] cycloaddition reaction between azido- or alkynyl-functionalized coumarins with alkynyl- or azido-functionalized amino acid and dipeptides in good-to-excellent yields. Steady-state absorption and the fluorescence properties of the synthesized conjugates were studied. The chemical applicability of these amino acid and peptide-based fluorophores was successfully demonstrated by their linear elongation by further tagging them with appropriate C- or N-terminus amino acid.