申请人:Taiho Pharmaceutical Co., Ltd.
公开号:US20150164909A1
公开(公告)日:2015-06-18
An antitumor effect potentiator for potentiating one or more other antitumor agents, comprising, as an active ingredient, an imidazooxazine compound represented by Formula (I), or a pharmaceutically acceptable salt thereof,
wherein A, B, C, and D represent C—R
1a
, C—R
1b
, C—R
1c
, and C—R
1d
, respectively, or one or two of A, B, C, and D represent an N atom;
at least two of R
1a
, R
1b
, R
1c
, and R
1d
represent hydrogen, and the other(s) represent(s) halogen; cyano; C
1-6
alkyl that may have hydroxyl group(s) as substituent(s); C
1-6
alkoxy; carbonyl having, as a substituent, hydroxyl, amino, optionally substituted mono- or di-(C
1-6
alkyl)amino, or mono- or di-(C
1-6
alkoxy)amino; or an unsaturated heterocyclic group;
R
2
represents phenyl, pyridyl, or thienyl;
R
3
represents hydrogen, methyl, ethyl, or cyclopropyl; and
R
4
represents hydrogen or hydroxy.
一种抗肿瘤效应增强剂,用于增强一种或多种其他抗肿瘤剂的作用,包括作为活性成分的由式(I)表示的咪唑氧噻啶化合物或其药学上可接受的盐,其中A、B、C和D分别表示C-R1a、C-R1b、C-R1c和C-R1d,或者A、B、C和D中的一个或两个表示N原子;R1a、R1b、R1c和R1d中至少两个表示氢,其他一个或多个表示卤素、氰基、C1-6烷基(可具有羟基取代基)、C1-6烷氧基、羟基、氨基、可选取代的单烷基或二烷基氨基、单烷氧基或二烷氧基氨基的卡宾基,或不饱和杂环基;R2表示苯基、吡啶基或噻吩基;R3表示氢、甲基、乙基或环丙基;R4表示氢或羟基。