Methodology for Easy Access to Large Sidewall Bis-Tröger's Bases

Coumarin Tröger's base derivatives with cyanine substitution as selective and sensitive fluorescent lysosomal probes

The fluorescent probes based on Tröger's base motive with both coumarin and cyanine substitution 11-13 have been synthesized by multi-step synthesis in high overall yields. Intracellular localization of prepared probes have been tested using four different cell lines (HF-P4, BLM, U-2 OS and A-2058). Prepared probes have intensive green and red fluorescence. Co-localization with commercial lysosome specific marker LysoTracker Blue DND 22 has been confirmed that all prepared fluorescent probes labeled lysosomal compartment with high selectivity and probes show excellent brightness at low concentration.

Bridged bis-Tröger’s base molecular tweezers as new cavitand family

New molecular tweezers based on bis-Tröger’s base with methoxycarbonyl groups on its pincers was prepared. These groups were converted into hydroxymethyl groups, which were interconnected by a linker to give the bridged molecular tweezers, a cavitand. The cavitand was studied and its ability to bind nitrobenzene was compared with similar bis-Tröger’s base molecular tweezers.