Methotrexate analogues. 33. N delta-acyl-N alpha-(4-amino-4-deoxypteroyl)-L-ornithine derivatives: synthesis and in vitro antitumor activity.
Rosowsky A, Bader H, Cucchi CA, Moran RG, Kohler W, Freisheim JH. Methotrexate analogues. 33. N delta-acyl-N alpha-(4-amino-4-deoxypteroyl)-L-ornithine derivatives: synthesis and in vitro antitumor activity. J Med Chem. 1988 Jul; 31(7):1332-7.