1-(2-fluorophenyl)-3-methylurea

1-methyl-3-(4-methylphenyl)sulfonylurea

3,6-dimethyl-1,3-oxazine-2,4-dione

1-[4,7-dimethoxy-6-(2-piperidin-1-ylethoxy)-2,3-dihydro-1-benzofuran-5-yl]-3-methylurea

毒扁豆碱