申请人:Kyowa Hakko Kogyo Co., Ltd.
公开号:US06239168B1
公开(公告)日:2001-05-29
Radicicol derivatives represented by the following formula (I) having tyrosine kinase inhibition activity or pharmacologically acceptable salts thereof:
wherein R1 and R2 are the same or different, and each represents hydrogen, alkanoyl, alkenoyl, tert-butyldiphenylsilyl or tert-butyldimethylsilyl; R3 represents Y—R5 {wherein Y represents substituted or unsubstituted alkylene; and R5 represents CONR6R7 (wherein R6 represents hydrogen, hydroxyl, substituted or unsubstituted lower alkyl, substituted or unsubstituted higher alkyl; R7 represents hydroxyl, substituted lower alkyl), CO2R12 (wherein R12 represents substituted lower alkyl, substituted or unsubstituted higher alkyl, X represents halogen.
以下公式(I)所代表的Radicicol衍生物具有酪氨酸激酶抑制活性或其药学上可接受的盐:其中R1和R2相同或不同,且每个代表氢,烷酰基,烯酰基,叔丁基二苯基硅基或叔丁基二甲基硅基;R3代表Y-R5(其中Y代表取代或未取代的亚烷基;R5代表CONR6R7(其中R6代表氢,羟基,取代或未取代的低烷基,取代或未取代的高烷基;R7代表羟基,取代的低烷基),CO2R12(其中R12代表取代的低烷基,取代或未取代的高烷基,X代表卤素)。