英文同义词: | ETHYL 1-ACETYL-2,2,5,5-TETRAMETHYL-3-PYRROLINE-3-CARBONYLOXYFORMATE;1-Acetyl-2,5-dihydro-2,2,5,5-tetraMethyl-1H-pyrrole-3-carboxylic Acid Anhydride with Ethyl Hydrogen Carbonate;1H-Pyrrole-3-carboxylic acid, 1-acetyl-2,5-dihydro-2,2,5,5-tetramethyl-, anhydride with ethyl hydrogen carbonate |