1 NHS 10-formyl-5,8,10-trideazafolic acid 1.000 2 NHR 2-{4-[2-(2-amino-4-hydroxy-quinazolin-6-yl)-1-carboxy-ethyl]-benzoylamino}-pentanedioic acid 1.000 3 21V N-(4-{2-[(6s)-2-amino-4-oxo-1,4,5,6,7,8-hexahydropyrido[2,3-D]pyrimidin-6-yl]ethyl}benzoyl)-L-glutamic acid 0.861 4 DDF 5,10-dideazatetrahydrofolic acid 0.861 5 L24 [[[2-amino-5,6,7,8-tetrahydro-4-hydroxy-pyrido[2,3-D]pyrimidin-6-yl]-ethyl]-phenyl]-carbonyl-glutamic acid 0.861 6 4HF N-[(5-{2-[(6r)-2-amino-4-oxo-3,4,5,6,7,8-hexahydropyrido[2,3-D]pyrimidin-6-yl]ethyl}-2-thienyl)carbonyl]-L-glutamic acid 0.784