1 L34 4-(7-amino-9-hydroxy-1-oxo-3,3a,4,5-tetrahydro-2,5,6,8,9b-pentaaza-cyclopenta[a]naphthalen-2-yl)-phenylcarbonyl-glutami C acid 1.000 2 LUD N-{4-[(6ar)-3-amino-1,9-dioxo-1,2,5,6,6a,7-hexahydroimidazo[1,5-f]pteridin-8(9h)-yl]benzene-1-carbonyl}-L-glutamic acid 1.000 3 GUE 5,10-methenyltetrahydrofolate 0.971 4 MEF N-({4-[(6ar)-3-amino-1-oxo-1,2,5,6,6a,7-hexahydroimidazo[1,5-f]pteridin-8(9h)-yl]phenyl}carbonyl)-L-glutamic acid 0.971 5 MHF 5,10-methenyl-6,7,8-trihydrofolic acid 0.971 6 TMF 5,10-methylene-6-hydrofolic acid 0.971