3,3,5-三甲基-2,4-二氢吡唑

2,2,4,4,6-五甲基-2,3,4,5-四氢嘧啶

异丙叉丙酮

2-methyl-2,4-dinitropentane

2,2,4-trimethyl-1,5-diaza-spiro[5.5]undecane