Antiinflammatory activity of 5,6-diaryl-2,3-dihydroimidazo[2,1-b]thiazoles. Isomeric 4-pyridyl and 4-substituted-phenyl derivatives
Isomeric 5(6)-(4-pyridyl)- and 6(5)-(4-substituted-phenyl)-2,3-dihydroimidazo[2,1-b]thiazoles were prepared by a mixed benzoin-imidazothione route, and their structures were assigned by spectral comparison to compounds of established substitution pattern. The structural assignment was confirmed by X...
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Published in | Journal of medicinal chemistry Vol. 27; no. 1; pp. 72 - 75 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
American Chemical Society
01.01.1984
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Subjects | |
Online Access | Get full text |
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Summary: | Isomeric 5(6)-(4-pyridyl)- and 6(5)-(4-substituted-phenyl)-2,3-dihydroimidazo[2,1-b]thiazoles were prepared by a mixed benzoin-imidazothione route, and their structures were assigned by spectral comparison to compounds of established substitution pattern. The structural assignment was confirmed by X-ray analysis. Examination of the compounds for antiinflammatory activity by an adjuvant arthritic rat assay revealed strikingly higher potencies for one analogous series than for their isomers. This selectivity was paralleled in the ability to stimulate cell-mediated immunity, as reflected in an oxazolone-induced contact sensitivity model. A drug-receptor complex is proposed that requires at least three sites of interactions. |
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Bibliography: | ark:/67375/TPS-6SP8FNM7-X istex:E7F96297586286CDF85BF3F5AC026950AF0FEF02 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0022-2623 1520-4804 |
DOI: | 10.1021/jm00367a014 |