| 英文同义词: | 2H-Pyrano[4,3-b]pyridine-3-carbonitrile,7-ethyl-1,5,7,8-tetrahydro-7-methyl-2-oxo-(9CI);7-ethyl-7-methyl-2-oxo-5,8-dihydro-1H-pyrano[4,3-b]pyridine-3-carbonitrile;2H-Pyrano[4,3-b]pyridine-3-carbonitrile, 7-ethyl-1,5,7,8-tetrahydro-7-methyl-2-oxo- |