Vince lactam130931-83-8100 % similar (±)-2-Azabicyclo[2.2.1]hept-5-en-3-one49805-30-3100 % similar (-)-2-Azabicyclo[2.2.1]hept-5-en-3-one79200-56-9100 % similar 3A,4,7,7A-Tetrahydro-4,7-methano-1H-isoindole-1,3(2H)-dione3647-74-331 % similar