Process for producing quinazoline derivative or salt thereof

C - Chemistry – Metallurgy – 07 – D

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C07D 239/96 (2006.01)

Patent

CA 2366597

A process for producing a quinazoline derivative represented by general formula (I) which comprises reacting a compound represented by general formula (II) with a compound represented by R3-X (III) in an appropriate solvent in the presence of an alkali metal carbonate and optionally of a small amount of water. In the formulas, R1 represents hydrogen or halogeno; R2 represents protected carboxy; R3 represents ar(lower)alkyl optionally substituted by one or more appropriate substituents; Z represents lower alkylene; and X represents an acid residue.

L'invention se rapporte à procédé de production d'un dérivé quinazoline représenté par la formule générale (I) qui consiste à faire réagir un composé représenté par la formule générale (II) avec un composé représenté par R?3¿-X (III), dans un solvant approprié, en présence d'un carbonate de métal alcalin et éventuellement d'une petite quantité d'eau. Dans les formules, R?1¿ représente un hydrogène ou un groupe halogéno; R?2¿ représente un carboxy protégé; R?3¿ représente un aralkyle (inférieur) éventuellement substitué par un ou plusieurs substituants appropriés; Z représente un alcylène inférieur et X représente un reste acide.

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