C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 471/04 (2006.01) A61K 31/435 (2006.01) A61K 31/505 (2006.01) A61K 31/675 (2006.01) A61K 31/695 (2006.01) C07D 487/04 (2006.01) C07F 7/10 (2006.01) C07F 9/6561 (2006.01)
Patent
CA 2192824
This invention relates to pyridone-carboxylic acid derivatives of the following formula or salts thereof : Image wherein R1 is a hydrogen atom, a halogen atom, etc., R2 is a carboxyl group etc., R3 is a hydrogen atom etc., A is a nitrogen atom or CH, m is 1 or 2, aid Y is an eliminable group or a group having the following formula: Image wherein R4 is a hydrogen atom or a lower alkyl group, Z is a hydrogen atom, a lower alkyl group, etc., R5 is a hydrogen atom, a lower alkyl group, etc., n is 0 or 1, and p is 1, 2, 3 or 4 and to processes for the preparation of these compounds, and further to anti-tumor agents which contain the above compounds as effective ingredients.
Dérivé d'acide pyridonecarboxylique répondant à la formule générale suivante (a), ou son sel, procédé de production de ces composés, et agent antitumoral les renfermant à titre d'ingrédient actif. Dans ladite formule, R1 représente hydrogène, halogène, etc.; R2 représente carboxy, etc.; R3 représente hydrogène, etc.; A représente azote ou CH; m vaut 1 ou 2; et Y représente un groupe éliminable ou un groupe répondant à la formule générale suivante (b), dans laquelle R4 représente hydrogène ou alkyle inférieur; Z représente hydrogène, alkyle inférieur, etc.; R5 représente hydrogène, alkyle inférieur, etc.; n vaut 0 ou 1; et p vaut 1, 2, 3 ou 4.
Chiba Katsumi
Kashimoto Shigeki
Shibamori Koh-Ichiro
Tomita Kyoji
Tsuzuki Yasunori
Dainippon Pharmaceutical Co. Ltd.
Dainippon Sumitomo Pharma Co. Ltd.
Smart & Biggar
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