diethyl 2-heptylidenepropanedioate

ethyl 3-[ethyl(methyl)amino]-3-oxopropanoate

ethyl 3-[di(propan-2-yl)amino]-3-oxopropanoate

ethyl 3-(ethylamino)-3-oxopropanoate

1-(2,4,6-三氯苯基)乙酮