Abstract
The structure-activity relationships of some tetracyclic heterocycles related to Brequinar were explored. Activities as inhibitors of dihydroorotate dehydrogenase and the mixed lymphocyte reaction are related to ring system, heteroatom placement, and pendant ring substitution.
MeSH terms
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Biphenyl Compounds / chemistry*
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Dihydroorotate Dehydrogenase
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Enzyme Inhibitors / chemistry
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Enzyme Inhibitors / pharmacology
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Heterocyclic Compounds / chemistry*
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Heterocyclic Compounds / pharmacology*
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Humans
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Immunosuppressive Agents / chemistry*
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Immunosuppressive Agents / pharmacology*
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Lymphocyte Culture Test, Mixed
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Oxidoreductases / antagonists & inhibitors
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Oxidoreductases Acting on CH-CH Group Donors*
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Structure-Activity Relationship
Substances
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Biphenyl Compounds
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Dihydroorotate Dehydrogenase
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Enzyme Inhibitors
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Heterocyclic Compounds
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Immunosuppressive Agents
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brequinar
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Oxidoreductases
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Oxidoreductases Acting on CH-CH Group Donors