2-(1,2,3,4-Tetrahydroquinolin-2-on-6-yl)-3,4-diazabicyclo(4.1.0)hept-2-en-5-one hydrate (4:1) 3,4-Diazabicyclo(4.1.0)hept-4-en-2-one, 5-(1,2,3,4-tetrahydro-2-oxo-6-quinolinyl)-, hydrate (4:1) 85123-67-7