| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compound effective as an agent for curing, alleviating and preventing cancer diseases, rejection in organ transplants, autoimmune diseases or the like. <P>SOLUTION: The compound represented by formula (I) or its salt is provided, [wherein, -X<SP POS="POST">1</SP>----X<SP POS="POST">2</SP>- indicates -NR<SP POS="POST">4</SP>CO-, -N=CR<SP POS="POST">5</SP>- or -S-CO-; R<SP POS="POST">1</SP>indicates a 1-6C alkyl, an aryl, a heteroaryl, a -CO-saturated aliphatic heterocycle or the like; R<SP POS="POST">0</SP>indicates a hydrogen atom, a halogen atom or the like; R<SP POS="POST">4</SP>indicates a hydrogen atom or a 1-6C alkyl; R<SP POS="POST">5</SP>indicates a hydrogen atom, a 1-6C alkyl or the like; R<SP POS="POST">2</SP>and R<SP POS="POST">3</SP>indicate each independently a hydrogen atom or a 1-6C alkyl that may be substituted with a fluorine atom; and Y indicates a 1-6C alkylene or the like that may be substituted with one or two 1-6C alkyls]. <P>COPYRIGHT: (C)2012,JPO&INPIT |
