1-tert-butyl-3-methylurea

8-benzyl-3-methyl-1-oxa-3,8-diazaspiro[4.5]decane-2,4-dione

1-hydroxy-1,3-dimethylurea

吡卡酯

2,6-Bis-hydroxymethylpyridine N-methylaminocarbonyl-bis-N-methylcarbamate ester