2,5-Dioxopyrrolidin-1-yl 6-(2,2,2-trifluoroacetamido)hexanoate

7-(2-Chloropropanoyl)-5H-[1]benzopyrano[2,3-b]pyridine

4-(3,3-Difluoropyrrolidin-1-yl)piperidine

3-Nitro-4-chloro-4'-fluorobenzophenone

1-(Methoxycarbonyl)cyclopropane-1-carboxylic acid

2-(2,5-Dioxopyrrolidin-1-yl)-1,1,3,3-tetramethylisouronium tetrafluoroborate