ethyl 3,4-bis(dimethylamino)-1H-pyrazole-5-carboxylate

ethyl 3-(butylamino)-3-oxopropanoate

2,3-dipropylcycloprop-2-ene-1-carboxylic acid

ethyl 3-(naphthalen-2-ylamino)-3-oxopropanoate

6-propan-2-ylazulene