2-(1,2,3,4-Tetrahydroquinolin-2-on-6-yl)-3,4-diazabicyclo(4.2.0)oct-2-en-5-one 3,4-Diazabicyclo(4.2.0)oct-4-en-2-one, 5-(1,2,3,4-tetrahydro-2-oxo-6-quinolinyl)- 5-(1,2,3,4-Tetrahydro-2-oxo-6-quinolinyl)-3,4-diazabicyclo(4.2.0)oct-4-en-2-one 85137-46-8