申请人:MERRELL DOW PHARMACEUTICALS INC.
公开号:EP0331550A1
公开(公告)日:1989-09-06
This invention relates to halogenated derivatives of certain phosphonates having the ability to inhibit aspartate transcarbamylase and therefore are useful in the treatment of certain cancers.
These derivatives are the compounds of the formula :
or a pharmaceutically acceptable salt thereof, wherein
Z is NH or CH₂, Q is O and when Z is CH₂, Q is also (H, OH),
X is H, F or Cl and Y is F or Cl,
R₁ and R₂ each are H or C₁₋₆ alkyl, and
R₃ and R₄ each are H or C₁₋₆ alkyl.
本发明涉及某些膦酸盐的卤代衍生物,它们具有抑制天冬氨酸转氨酶的能力,因此可用于治疗某些癌症。
这些衍生物为式:
或其药学上可接受的盐,其中
Z 是 NH 或 CH₂,Q 是 O,当 Z 是 CH₂ 时,Q 也是(H,OH)、
X 是 H、F 或 Cl,Y 是 F 或 Cl、
R₁ 和 R₂ 各为 H 或 C₁₋₆ 烷基,以及
R₃ 和 R₄ 各自为 H 或 C₁₋₆ 烷基。