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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1997-3-13
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pubmed:abstractText |
Twenty-six compounds derived from the 5-deaza- and 5,10-dideazaaminopterin series of aminopterin analogues were evaluated for antiarthritic activity in the mouse type II collagen model. New compounds in the 5-deaza series were prepared by alkylation of an appropriate N-substituted (4-aminobenzoyl)-L-glutamic acid dialkyl ester or N-(5-amino-2-thenoyl)-L-glutamate diester with a 2,4-diamino-5-alkyl-6-(bromomethyl)-5-deazapteridine. The resultant 5-deazaaminopterin diesters were saponified to provide the target 5-deaza analogues. 5,10-Dideazaaminopterins were synthesized by similar alkylation of the carbanions of appropriate 4-carboxyphenylacetic, (5-carboxy-2-thienyl)acetic, or (5-carboxy-2-pyridyl)acetic acid dimethyl esters. The diesters of the 2,4-diamino-4-deoxy-10-carboxy-5,10-dideazapteroic acid types so obtained were saponified and then readily decarboxylated by heating in Me2SO solution to provide the 2,4-diamino-5,10-dideazapteroic acid-type intermediates. Peptide coupling with diethyl L-glutamate followed by ester hydrolysis at room temperature afforded the new 5,10-dideazaaminopterin analogues. 5-Deazaaminopterins bearing an alkyl substituent at the 5-position were generally quite effective as antiinflammatory agents. Thus 5-propyl-5-deazaaminopterin, 5-methyl-10-propargyl-5-deazaaminopterin, 5-methyl-10-allyl-5-deazaaminopterin, 5-ethyl-5-deazamethotrexate, and 2,5-disubstituted thiophene analogue of 5-methyl-5-deazaaminopterin showed potencies greater than methotrexate by intraperitoneal or oral administration and were active over a considerably broader dose range. Useful activity in the 5,10-dideaza series was only observed for 5,10-dideazaaminopterin and its 10-methyl analogue. Alkyl substitution at C-5 or C-10 was generally detrimental to antiinflammatory activity in this series.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/5-deazaaminopterin,
http://linkedlifedata.com/resource/pubmed/chemical/Aminopterin,
http://linkedlifedata.com/resource/pubmed/chemical/Antirheumatic Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Collagen,
http://linkedlifedata.com/resource/pubmed/chemical/Methotrexate
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0022-2623
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
31
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pubmed:volume |
40
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
377-84
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9022805-Aminopterin,
pubmed-meshheading:9022805-Animals,
pubmed-meshheading:9022805-Antirheumatic Agents,
pubmed-meshheading:9022805-Arthritis, Rheumatoid,
pubmed-meshheading:9022805-Cell Survival,
pubmed-meshheading:9022805-Collagen,
pubmed-meshheading:9022805-Magnetic Resonance Spectroscopy,
pubmed-meshheading:9022805-Mass Spectrometry,
pubmed-meshheading:9022805-Methotrexate,
pubmed-meshheading:9022805-Mice,
pubmed-meshheading:9022805-Mice, Inbred DBA,
pubmed-meshheading:9022805-Molecular Structure,
pubmed-meshheading:9022805-Tumor Cells, Cultured
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pubmed:year |
1997
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pubmed:articleTitle |
Analogues of methotrexate in rheumatoid arthritis. 2. Effects of 5-deazaaminopterin, 5,10-dideazaaminopterin, and analogues on type II collagen-induced arthritis in mice.
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pubmed:affiliation |
Organic Chemistry Department, Southern Research Institute, Birmingham, Alabama 35255, USA.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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