| 摘要 |
<p>The invention concerns oxime derivatives of the formula I <CHEM> wherein R<4> is hydrogen, (1-4C)alkyl, halogeno-(2-4C)alkyl, hydroxy-(2-4C)alkyl, cyano-(1-4C)alkyl, phenyl or phenyl-(1-4C)alkyl; R<5> is hydrogen, (1-4C)alkyl, halogeno-(2-4C)alkyl, hydroxy-(2-4C)alkyl, cyano-(1-4C)alkyl, phenyl or phenyl-(1-4C)alkyl, or a heteroaryl moiety selected from pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, furyl, thienyl, oxazolyl and thiazolyl; A<4> is (1-4C)alkylene; Ar<1> is phenylene, pyridinediyl or pyrimidinediyl; A<1> is a direct link to X<1>, or A<1> is (1-4C)alkylene; X<1> is oxy, thio, sulphinyl or sulphonyl; Ar<2> is phenylene, pyridinediyl, pyrimidinediyl, thiophenediyl, furandiyl or thiazolediyl; R<1> is hydrogen, (1-4C)alkyl, (3-4C)alkenyl or (3-4C)alkynyl; and R<2> and R<3> together form a group of the formula -A<2>-X<2>-A<3>- wherein each of A<2> and A<3> is independently (1-3C)alkylene and X<2> is oxy, thio, sulphinyl, sulphonyl or imino; or a pharmaceutically-acceptable salt thereof; processes for their manufacture; pharmaceutical compositions containing them and their use as 5-lipoxygenase inhibitors.</p> |
