Synthesis and structure-activity relationships of 5H,11 H-[I]benzopyrano[4,3-g]benzopyran-9-carboxylic acids. 1977

J P Devlin, and K Freter, and P B Stewart

The synthesis and properties of the title compounds 1 are described. Many of these compounds are potent inhibitors of the passive cutaneous anaphylaxis reaction of rats against egg albumin challenge. Structural variations include substitutions in the 2, 3, 4, 5, 7, and 12 position of the nucleus 1. A novel rearrangement from a compound of the related [3,4-f] series to this group is reported.

UI MeSH Term Description Entries
D006967 Hypersensitivity Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen. Allergy,Allergic Reaction,Allergic Reactions,Allergies,Hypersensitivities,Reaction, Allergic,Reactions, Allergic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001578 Benzopyrans Compounds with a core of fused benzo-pyran rings. Benzopyran,Chromene,Chromenes
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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