1-苯基哌啶-2-甲腈

2-[(4-methoxyphenyl)methylamino]-2-methylpropanenitrile

2,2,5,5-四甲基-4-恶唑烷酮

perchloric acid,2,5,5-trimethyl-1,3-oxazol-4-one

2-cyanopropan-2-ylurea