2-[2-(4-nitrophenyl)hydrazinyl]cyclohexa-2,5-diene-1,4-dione

1-(4-methylphenyl)sulfonyl-5-nitroindole

二甲基氧代丙二酸酯

dimethyl di(p-nitrophenylamino)malonate

2-(methylsulfanylmethyl)-4-nitroaniline