(10R*,11R*)-10,11-Bis(hydroxymethyl)-4-phenyl-2,4,6-triazatricyclo<5.2.2.02,6>undec-8-en-3,5-dion

10,12-Dioxo-11-phenyl-9,11,13-triazatetracyclo<6.5.2.02,7.09,13>pentadec-2(7)-en-4,4,5,5-tetracarbonitril

8,9-Dimethylen-4-phenyl-2,4,6-triazatricyclo<5.2.2.02,6>undecan-3,5-dion

(8R*,9R*)-8,9-Bis(hydroxymethyl)-4-phenyl-2,4,6-triazatricyclo<5.2.2.02,6>undecan-3,5-dion