英文别名
4-oxo-(3ar)-3a,4-dihydro-3H-furo[3,4-c]pyrazole-6ac-carboxylic acid methyl ester;4-oxo-3a,4-dihydro-3H-furo[3,4-c]pyrazole-6a-carboxylic acid methyl ester;4-Oxo-3a,4-dihydro-3H-furo[3,4-c]pyrazol-6a-carbonsaeure-methylester;methyl 4-oxo-3a,6-dihydro-3H-furo[3,4-c]pyrazole-6a-carboxylate