3-甲氧基-3-甲基丁烷-2-酮

2,3,3-trimethyl-1-propan-2-ylaziridine-2-carbonitrile

1-(isopropylamino)-2,2-dimethylcyclopropanecarbonitrile

(3-methoxy-3-methyl-2-butylidene)isopropylamine

3-(isopropylamino)-2-methoxy-2,3-dimethylbutyronitrile