申请人:KYOWA HAKKO KOGYO CO., LTD.
公开号:EP1227097A1
公开(公告)日:2002-07-31
UCS 1025 derivatives having antitumor activity or antibacterial activity which are represented by formula (I):
wherein R1 represents hydrogen, lower alkyl, etc.; R2 represents hydrogen, or is combined with R3 to represent a bond, etc., or is combined with R4 to represent -O(C=O)-, etc.; R3 represents hydrogen, etc., or is combined with R2 to represent a bond, etc.; R4 represents hydrogen, etc., or is combined with R2 to represent -(C=O)O-, etc.; R5 represents hydrogen or is combined with R6 to represent a bond; R6 represents hydrogen, etc., or is combined with R5 to represent a bond; R7 represents hydrogen or is combined with R8 to represent =O; R8 represents hydroxy or is combined with R7 to represent =O; ---- represents a single bond or a double bond, and a represents a single bond (two carbon atoms to which a is bound are combined to form a single bond) or an oxygen atom, or pharmaceutically acceptable salts thereof.
具有抗肿瘤活性或抗菌活性的 UCS 1025 衍生物,由式(I)表示:
其中 R1 代表氢、低级烷基等; R2 代表氢,或与 R3 结合代表键等,或与 R4 结合代表-O(C=O)-等; R3 代表氢等,或与 R2 结合代表键等; R4 代表氢等,或与 R2 结合代表-(C=O)O-等; R5 代表氢,或与 R6 结合代表键等; R6 代表氢等、或与 R5 结合代表键;R7 代表氢或与 R8 结合代表 =O;R8 代表羟基或与 R7 结合代表 =O;---- 代表单键或双键,a 代表单键(与 a 结合的两个碳原子结合形成单键)或氧原子,或其药学上可接受的盐。