aminopivalinamide
2-(2-fluorobenzylidene)-4,4-dimethyl-5-oxopyrazolidin-2-ium-1-ide
1-(4-fluorobenzyl)-4,4-dimethyl-3-(N,N-dimethylcarbamoyloxy)-2-pyrazoline
1-benzyl-4,4-dimethyl-3-(N,N-dimethylcarbamoyloxy)-2-pyrazoline
1-benzylidene-4,4-dimethyl-3-oxopyrazolidin-1-ium-2-ide