ethyl 5,5-diethoxy-2-methoxypentanoate

ethyl 2-(diethoxymethyl)-1-cyclopropanecarboxylate

ethyl (1R,2R)-2-(diethoxymethyl)cyclopropane-1-carboxylate

2-ethoxy-3-nitroimidazo[1,2-a]pyridine

ethyl 3-amino-3-thieno[2,3-b]pyridin-6-ylprop-2-enoate