4-Ethoxy-2-phenyl-5-pyrimidincarbonsaeureethylester
5-Ethoxy-1-methyl-4-pyrazolthiocarbonsaeure-O-ethylester
3-Ethoxy-1-methyl-4-pyrazolthiocarbonsaeure-O-ethylester
3-Ethoxy-4-pyrazolthiocarbonsaeure-O-ethylester
5-Ethoxy-4-isothiazolthiocarbonsaeure-O-ethylester