申请人:BEECHAM GROUP PLC
公开号:EP0287356A2
公开(公告)日:1988-10-19
A compound of formula (I) or a pharmaceutically acceptable salt thereof:
in which X represents R₁OOC- in which R₁ is C₁₋₄ alkyl, C₂₋₄ alkenyl or C₂₋₄ alkynyl; R₂O- in which R₂ is C₁₋₂ alkyl, C₁₋₂ alkylcarbonyl or aminocarbonyl optionally substituted by one or two methyl groups;
a group
in which Y represents a 3-membered divalent residue completing a 5-membered aromatic ring and comprises one or two heteroatoms selected from oxygen, nitrogen and sulphur, any amino nitrogen optionally substituted by a C₁₋₂ alkyl group, Y being optionally C-substituted by a methyl group; or a group
in which A₁ is oxygen or sulphur, one of A₂ and A₃ is CR₃ and the other is nitrogen or CR₄ where R₃ and R₄ are independently selected from hydrogen and methyl; and each of p and q independently represents an integer of 2 to 4.
一种式(I)化合物或其药学上可接受的盐:
其中 X 代表 R₁OOC-,其中 R₁ 是 C₁₋₄ 烷基、C₂₋₄ 烯基或 C₂₋₄ 烷炔基;R₂O- 其中 R₂ 是任选被一个或两个甲基取代的 C₁₋₂ 烷基、C₁₋₂ 烷羰基或氨基羰基;
一个基团
其中 Y 代表完成一个 5 元芳香环的 3 元二价残基,包含一个或两个选自氧、氮和硫的杂原子,任何氨基氮可选择被一个 C₁₋₂烷基取代,Y 可选择被一个甲基 C 取代;或
其中 A₁ 是氧或硫,A₂ 和 A₃ 中的一个是 CR₃,另一个是氮或 CR₄,其中 R₃ 和 R₄ 独立地选自氢和甲基;以及 p 和 q 各自独立地代表 2 至 4 的整数。