Patent number: 7276512
Abstract: A compound selected from those of formula (I): wherein: X and Y represent a group selected from hydrogen, halogen, hydroxy, alkoxy, nitro, cyano, alkyl, trihaloalkyl and NRaRb, wherein Ra and Rb are as defined in the description R1 represents hydrogen or alkyl R2 represents a group selected from hydrogen, alkyl, —OR?a, —NR?aR?b, —O-Ta-OR?a, —NR?a-Ta-NR?aR?b, —NR?a—C(O)-TaH, —O—C(O)-TaH, —O-Ta-NR?aR?b, —NR?a-Ta-OR?a, —NR?a-Ta-CO2R?a and —NR?a—C(O)-Ta-NR?aR?b, wherein R?a, R?a, R?b and Ta are as defined in the description R3 and R4 represent hydrogen or alkyl A represents a group of formula —CH(R5)—CH(R6)—, —CH?C(R7)—, —C(R7)?CH—, —C(O)—CH(R8) or —CH(R8)—C(O), wherein R5, R6, R7 and R8 are as defined in the description its isomers, N-oxides, and addition salts thereof with a pharmaceutically acceptable acid or base, and medicinal products containing the same which are useful in the treatment of cancer.
Type:
Grant
Filed:
June 18, 2004
Date of Patent:
October 2, 2007
Assignee:
Les Laboratoires Servier
Inventors:
Michel Koch, François Tillequin, Sylvie Michel, John Hickman, Alain Pierre, Stéphane Leonce, Bruno Pfeiffer, Pierre Renard