5-{1-[2-(2-phenoxyethoxy)ethyl]-1H-pyrazol-3-yl}thiophene-2-carboxylic acid methyl ester
5-(1-phenylcarbamoylmethyl-1H-pyrazol-3-yl)thiophene-2-carboxylic acid methyl ester
methyl 5-(1-trityl-1H-3-pyrazolyl)-2-thiophene-carboxylate
5-(1-(2-benzyloxy-ethyl)-1H-pyrazol-3-yl)-thiophene-2-carboxylic acid methyl ester