Process for preparing new imidazoquinoxalines and their salts

C - Chemistry – Metallurgy – 07 – D

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C07D 487/04 (2006.01)

Patent

CA 1205804

PRECIS DE LA DIVULGATION: L'invention concerne la préparation de nouvelles imidazoquinoxalines et de leurs sels, pharmaceutiquement acceptables, (I) Image où R1 est OH, alcoxy (1-5C) ou cyclohexylcarbonyloxyméthoxy, R2 est hydrogène, alcoyle (1-8C), alcoxycarbonylvinyl (4-7C) ou R2 est COR où R est hydrogène, alcoyle (1-8C), cyclo- alcoyle (3-10C), alcényle (2-4C), alcoxy (1-5C), alcoxycar- bonyle (2-5C) NH2, CF3, CHCl2, phényle, aralcoyle (7-10C), aralcoxy (7-10C), ou R2 est -CO-NH(CH2)n-X où soit n = 0 et X est phényle, soit n = 1 à 5 et X est -NR3R4 où R3 et R4 sont hydrogène, alcoyle (1-5C), cycloalcoyle (3-7C) aryle ou aralcoyle (6-8C), ou forment avec l'azote un hétérocycle saturé (4-8C), pouvant renfermer un oxygène, un soufre ou un autre azote, lequel peut être substitué par un alcoyle (1-3C) ou alcoxycarbonyle (2-5C), ou X est: Image ou R2 est -A-(CH2)m-Y; où A est -CO- ou -CO2-, m et Y est -N-R3R4. Les produits de formule (I) sont utiles comme médicaments, notamment antiallergiques.

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