1-methyl-4-phenylethynyl-1H-pyrazole-3-carboxylic acid methyl ester
4-(4-methoxy-phenylethynyl)-1-methyl-1H-pyrazole-3-carboxylic acid methyl ester
1-methyl-4-(3-phenoxy-prop-1-ynyl)-1H-pyrazole-3-carboxylic acid methyl ester
1-methyl-4-(3-phenoxy-prop-1-ynyl)-1H-pyrazole-3-carboxylic acid hydrazide
4-(4-methoxy-phenylethynyl)-1-methyl-1H-pyrazole-3-carboxylic acid hydrazide