Inhibition of mammalian folylpolyglutamate synthetase and human dihydrofolate reductase by 5,8-dideaza analogs of folic acid and aminopterin bearing a terminal L-ornithine
作者:Shirish A. Patil、Barry Shane、James H. Freisheim、Shyam K. Singh、John B. Hynes
DOI:10.1021/jm00127a026
日期:1989.7
8-dideazapteroyl)-L-ornithine (3f) was identified as the most potent inhibitor of mammalian folylpolyglutamatesynthetase reported thus far (Ki congruent to 2 nM). Its 4-oxy counterpart, N alpha-(5-chloro-5,8-dideazapteroyl)-L-ornithine, was only 5-fold less inhibitory than 3f toward folylpolyglutamatesynthetase but was found to be a much weaker inhibitor of dihydrofolate reductase than 3f.