| 摘要 |
2-Aza-2-desamino analogues of 5,8-dideazafolic acid, which analogues have the formula <IMAGE> wherein X is an aryl or heteroaryl moiety; R1 is H, C1-C4 alkyl, C3-C4 alkenyl, or C3-C4 alkynyl; and R2 is OH, an L- alpha -amino acid, or a peptide comprising L- alpha -amino acids. |
