2-ethoxy-2-methyl-1,3-benzodioxol-4-ol,methylcarbamic acid

N-(2,2-二乙氧基乙基)-N’-甲基脲

1-methyl-3-(2-pyridin-4-ylpyrimidin-4-yl)urea

(3-nitrophenyl) N-methylcarbamate

1-丁基-3-甲基-脲