triethyl ethane-1,1,1-tricarboxylate

2-疏基-7H-吡咯并[2,3-d]嘧啶-4,6-二醇

5-氧代-1-苯基-2,5-二氢-1H-吡唑-3-羧酸

3-oxo-2-phenyl-1H-pyrazole-5-carbonitrile

琥珀酸