| abstract |
A dibenzocycloheptene compound represented by the general formula (I): (I) (wherein R1 represents hydrogen, halogeno, etc.; R2 represents hydrogen, halogeno, etc.; A represents, e.g., a 5- or 6-membered heterocyclic aromatic group containing one to three heteroatoms selected from the group consisting of nitrogen, oxygen, and sulfur, the heterocyclic aromatic group optionally having halogeno, nitro, etc. as a substituent; B represents -CH=CH-, -CH2O-, etc.; Y represents C1-10 alkylene optionally having halogeno, etc. as a substituent; Z represents optionally protected carboxyl, etc.; m is an integer of 1 to 4; n is an integer of 1 to 3; and …… indicates a single bond or double bond) or a pharmacologically acceptable salt of the compound; and a medicinal composition which contains the compound or salt as the active ingredient. The composition has not only strong leucotriene D4 antagonism but leucotriene C4 antagonism and leucotriene E4 antagonism. It is useful as an antasthmatic, antiallergic, or antiphlogistic. |