eight previously unreported methotrexate ( mtx ) and aminopterin ( amt ) analogues with the l-glutamate moiety replaced by dl-2-aminoalkanedioic acids containing up to 10 ch2 groups were synthesized from 4-amino-4-deoxy-n10-methylpteroic or 4-amino-4-deoxy-n10-formylpteroic acid .
C0025677
methotrexate
C0002583
aminopterin