Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1989-11-28
pubmed:abstractText
A series of 2,4-diamino-5-aryl-6-ethylpyrimidines embracing basic substituents in the 5-aryl ring was synthesized and evaluated for inhibitory activity against rat liver dihydrofolate reductase (DHFR). Maximal enzyme inhibition was observed for compounds bearing a benzylamino (19) or N-alkylbenzylamino substituent (29 and 30) in the 4-position of the phenyl ring and a nitro group in the 3-position, the corresponding 3-amino, 3-azido, or unsubstituted analogues proving only weakly active or inactive as DHFR inhibitors. Selected compounds were also screened in vivo against a methotrexate-resistant tumor, the M5076 murine reticulosarcoma, and antitumor activity in general paralleled activity against DHFR, the (3,4-dichlorobenzyl)amino analogue 26 proving the least toxic compound to exhibit significant antitumor activity. The X-ray crystal structure of the ethanesulfonic acid salt of the N-methylbenzylamino compound 29 has been determined to facilitate future molecular modeling studies in this new series of DHFR inhibitors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-2623
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2468-74
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Structural studies on bioactive compounds. 8. Synthesis, crystal structure, and biological properties of a new series of 2,4-diamino-5-aryl-6-ethylpyrimidine dihydrofolate reductase inhibitors with in vivo activity against a methotrexate-resistant tumor cell line.
pubmed:affiliation
Department of Pharmaceutical Sciences, Aston University, Birmingham, U.K.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't