1,3-diethoxyanthracene-9,10-dione

ethyl 2-cyano-2-(cyclohexen-1-yl)butanoate

2,3-Dimethoxy-5-nitro-benzoesaeure-aethylester

1,3,5-triethyl-1,3,5-triazinane-2,4,6-trione

1-(benzenesulfonyl)-4-ethyl-2,3-dihydroquinoxaline