Synthesis of 9-<i>O</i>-Substituted Derivatives of 9-Hydroxy-5,6-dimethyl-6<i>H</i>- pyrido[4,3-<i>b</i>]carbazole-1-carboxylic Acid (2-(Dimethylamino)ethyl)amide and Their 10- and 11-Methyl Analogues with Improved Antitumor Activity
作者:Claude Guillonneau、Alain Pierré、Yves Charton、Nicolas Guilbaud、Laurence Kraus-Berthier、Stéphane Léonce、André Michel、Emile Bisagni、Ghanem Atassi
DOI:10.1021/jm981093m
日期:1999.6.1
Analogues of the antitumor drug S 16020-2 modified at the 9, 10, or 11 position were synthesized and evaluated in vitro and in vivo on the P388 leukemia and B16 melanoma models. Starting from 9-methoxy-5, 11-dimethyl-6H-pyrido[4,3-b]carbazole-1-carboxylic acid ethyl ester, the 11-CH3 analogue of 9-hydroxy-5,6-dimethyl-6H-pyrido[4, 3-b]carbazole-1-carboxylic (2-(dimethylamino)ethyl)amide (1), compound
合成了在9、10或11位修饰的抗肿瘤药物S 16020-2的类似物,并在P388白血病和B16黑色素瘤模型上进行了体内和体外评估。从9-甲氧基-5,11-二甲基-6H-吡啶并[4,3-b]咔唑-1-羧酸乙酯开始,是9-羟基-5,6-二甲基-6H-吡啶的11-CH3类似物[4,3-b]咔唑-1-羧酸(2-(二甲基氨基)乙基)酰胺(1),化合物4,是按四步法合成的,而其10-CH3类似物5是通过两步法合成的步骤,从化合物1开始。最后从9-OH化合物1、4和5开始,合成了一系列不同的9-O-取代的衍生物。在这些系列中,活性最高的化合物是由9-OH基团与各种脂族二酸酯化而成,这导致了1、4和5的9-O-CO-()-COOH衍生物。