Tumor-targeting with novel non-benzoyl 6-substituted straight chain pyrrolo[2,3-d]pyrimidine antifolates via cellular uptake by folate receptor α and inhibition of de novo purine nucleotide biosynthesis.

Tumor-targeting with novel non-benzoyl 6-substituted straight chain pyrrolo[2,3-d]pyrimidine antifolates via cellular uptake by folate receptor α and inhibition of de novo purine nucleotide biosynthesis.