PMID- 2299624 OWN - NLM STAT- MEDLINE DCOM- 19900309 LR - 20190709 IS - 0022-2623 (Print) IS - 0022-2623 (Linking) VI - 33 IP - 2 DP - 1990 Feb TI - Synthesis and biological activity of an acyclic analogue of 5,6,7,8-tetrahydrofolic acid, N-[4-[[3-(2,4-diamino-1,6-dihydro-6-oxo-5- pyrimidinyl)propyl]amino]-benzoyl]-L-glutamic acid. PG - 561-7 AB - The synthesis and biological evaluation of N-[4-[[3-(2,4-diamino-1,6-dihydro-6-oxo-5-pyrimidinyl)propyl]amino]- benzoyl]-L-glutamic acid (1) (5-DACTHF, 543U76), an acyclic analogue of 5,6,7,8-tetrahydrofolic acid (THFA), are described. The key intermediate, hemiaminal 8, was prepared in four stages from 3-chloropropionaldehyde diethyl acetal. Reaction of 8 with dimethyl N-(4-aminobenzoyl)-L-glutamate gave the 2,4-bis(acetylamino) derivative 11, which was hydrolyzed with 1 N sodium hydroxide to give 1; the glycine analogue 16 was prepared in a similar manner. The N-methyl analogue 2 and N-formyl analogue 3 were prepared from 11 and 1, respectively. Compounds 1-3 inhibited growth of Detroit 98 and L cells in cell culture, with IC50s ranging from 2 to 0.018 microM. Cell culture toxicity reversal studies and enzyme inhibition tests showed that 1 was cytotoxic but not by the mechanism of the dihydrofolate reductase inhibitor aminopterin. Compound 1 and its polyglutamylated homologues inhibited glycinamide ribonucleotide transformylase (GAR-TFase) and aminoimidazole ribonucleotide transformylase (AICAR-TFase), the folate-dependent enzymes in de novo purine biosynthesis; and 1 was an effective substrate for mammalian folyl-polyglutamate synthetase. The compound inhibited (IC50 = 20 nM) the conversion of [14C]formate to [14C]-formylglycinamide ribonucleotide by MOLT-4 cells in culture. These data suggest that the site of action of 1 is inhibition of purine de novo biosynthesis. Moderate activity was observed against P388 leukemia in vivo. FAU - Kelley, J L AU - Kelley JL AD - Wellcome Research Laboratories, Research Triangle Park, North Carolina 27709. FAU - McLean, E W AU - McLean EW FAU - Cohn, N K AU - Cohn NK FAU - Edelstein, M P AU - Edelstein MP FAU - Duch, D S AU - Duch DS FAU - Smith, G K AU - Smith GK FAU - Hanlon, M H AU - Hanlon MH FAU - Ferone, R AU - Ferone R LA - eng PT - Journal Article PL - United States TA - J Med Chem JT - Journal of medicinal chemistry JID - 9716531 RN - 0 (Antimetabolites, Antineoplastic) RN - 0 (Folic Acid Antagonists) RN - 0 (Purines) RN - 0 (Tetrahydrofolates) RN - 118252-44-1 (N-(4-((3-(2,4-diamino-1,6-dihydro-6-oxo-5-pyrimidinyl)propyl)amino)benzoyl)glutamic acid) RN - EC 2.1.2.- (Hydroxymethyl and Formyl Transferases) RN - EC 2.1.2.2 (Phosphoribosylglycinamide Formyltransferase) RN - EC 2.1.2.3 (Phosphoribosylaminoimidazolecarboxamide Formyltransferase) RN - EC 2.3.- (Acyltransferases) RN - EC 6.3.2.- (Peptide Synthases) RN - EC 6.3.2.17 (folylpolyglutamate synthetase) SB - IM EIN - J Med Chem 1990 Nov;33(11):3116 MH - Acyltransferases/antagonists & inhibitors MH - Animals MH - Antimetabolites, Antineoplastic/*chemical synthesis/pharmacology MH - Cell Line MH - Chemical Phenomena MH - Chemistry MH - Folic Acid Antagonists/*chemical synthesis/pharmacology MH - *Hydroxymethyl and Formyl Transferases MH - Leukemia, Experimental/drug therapy MH - Mice MH - Peptide Synthases/metabolism MH - Phosphoribosylaminoimidazolecarboxamide Formyltransferase MH - Phosphoribosylglycinamide Formyltransferase MH - Purines/metabolism MH - Structure-Activity Relationship MH - Tetrahydrofolates/*chemical synthesis/pharmacology EDAT- 1990/02/01 00:00 MHDA- 1990/02/01 00:01 CRDT- 1990/02/01 00:00 PHST- 1990/02/01 00:00 [pubmed] PHST- 1990/02/01 00:01 [medline] PHST- 1990/02/01 00:00 [entrez] AID - 10.1021/jm00164a014 [doi] PST - ppublish SO - J Med Chem. 1990 Feb;33(2):561-7. doi: 10.1021/jm00164a014.