3-硝基-1-苯并呋喃

2-ethyl-4-methyl-2-phenyl-[1,3]dioxolane

3,6-bis-(α-hydroxybenzyl)-1,2-dihydro-s-tetrazine

Dimethyl 2-methoxycarbonyl-3-methylenesuccinate

3-bromo-2,4-dioxo-butyric acid