Pyranochromone derivatives and therapeutic composition...

Details Pyranochromone derivatives and therapeutic composition... Pyranochromone derivatives and therapeutic composition...

C - Chemistry, Metallurgy

07

D

260/357.5, 260/3

C07D 493/04 (2006.01) C07C 45/46 (2006.01) C07C 49/825 (2006.01) C07D 311/24 (2006.01) C07D 311/58 (2006.01) C07D 311/64 (2006.01)

Patent

CA 1115721

ABSTRACT OF THE DISCLOSUR Novel pyranochromone derivatives having the genera formula: Image wberein R1 represents hydrogen atom, an alkali metal or an alkyl group containing 1-4 carbon atoms; R2, R3 and R4 represent hydrogen atom or an alkyl group containing 1-4 carbon atoms respectively, provided that both R3 and R4 are not hydrogen atom at the same time; R5 and R6 represent an alkyl group containing 1-4 carbon atoms respectively; and R7 represents hydrogen atom, hydroxyl group, an alkyl group containing 1-4 carbon atoms or an alkoxyl group containing 1-4 carbon atoms. The novel medicaments comprising predominantly tne above derivative are effective for the treatment of allergic diseases.

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