Substituted oxadiazoles and thiadiazoles for use in the treatment of glaucoma and novel compounds having such use
申请人:MERCK SHARP & DOHME LTD.
公开号:EP0459568A2
公开(公告)日:1991-12-04
The use of compounds for formula (I):
or a salt or prodrug thereof; wherein one of X, Y, or Z is an oxygen or sulphur atom and the other two are nitrogen atoms, and the dotted circle represents two double bonds thus forming a 1,3,4-oxadiazole, 1,2,4-oxadiazole, 1,3,4-thiadiazole or 1,2,4-thiadiazole nucleus;
R¹ represents a non-aromatic azacyclic or azabicyclic ring system selected from
wherein the broken line represents an optional chemical bond;
the substituents R³ and R⁴ may be present at any position, including the point of attachment to the oxa- or thia-diazole ring, and independently represent hydrogen, C₁₋₄ alkyl, halo, C₁₋₄ alkoxy, hydroxy or carboxy, or R³ and R⁴ together represent carbonyl;
the group R⁵ represents hydrogen or C₁₋₄ alkyl; and
R² represents hydrogen, C₁₋₈ alkyl optionally substituted by hydroxy or fluoro, C₂₋₈ alkenyl, OR⁷, SR⁷, NR⁷R⁸, CN, CO₂R⁷, CONR⁷R⁸ OR NHCONHR⁹ where R⁹ is C₁₋₄ alkyl; wherein R⁷ and R⁸ independently represent hydrogen or saturated or unsaturated C₁₋₄ alkyl provided that, when R⁷ and R⁸ in NR⁷R⁸ are both hydrogen, at least one of R³ and R⁴ is C₁₋₄ alkyl,
in the treatment of glaucoma, novel compounds having such use, formulations containing them and their synthesis.
式(I)化合物的用途:
或其盐或原药;其中 X、Y 或 Z 中的一个是氧原子或硫原子,另外两个是氮原子,虚线圆圈代表两个双键,从而形成 1,3,4-噁二唑、1,2,4-噁二唑、1,3,4-噻二唑或 1,2,4-噻二唑核;
R¹ 代表非芳氮杂环或氮杂环环系,选自
其中断线代表可选的化学键;
取代基 R³ 和 R⁴ 可存在于任何位置,包括与氧杂或硫杂二唑环的连接点,并独立地代表氢、C₁₋₄ 烷基、卤代、C₁₋₄ 烷氧基、羟基或羧基,或 R³ 和 R⁴ 共同代表羰基;
基团 R⁵ 代表氢或 C₁₋₄ 烷基;以及
R² 代表氢、任选被羟基或氟取代的 C₁₋₈ 烷基、C₂₋₈ 烯基、OR⁷、SR⁷、NR⁷R⁸、CN、CO₂R⁷、CONR⁷R⁸ OR NHCONHR⁹,其中 R⁹ 是 C₁₋₄ 烷基;其中 R⁷ 和 R⁸ 独立地代表氢或饱和或不饱和 C₁₋₄ 烷基,但当 NR⁷R⁸ 中的 R⁷ 和 R⁸ 都是氢时,R³ 和 R⁴ 中至少有一个是 C₁₋₄ 烷基、
用于治疗青光眼的新型化合物、含有这些化合物的制剂及其合成。