申请人:Beecham-Wuelfing GmbH & Co. KG
公开号:US04980368A1
公开(公告)日:1990-12-25
A compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein: R.sub.1 is hydrogen, C.sub.1-6 alkyl, C.sub.1-6 alkoxy or halogen; R.sub.2 and R.sub.3 are both hydrogen or together represent a bond; R.sub.4 is selected from C.sub.1-6 alkyl, phenyl, phenyl C.sub.1-4 alkyl, COR.sub.8 where R.sub.8 is hydroxy, C.sub.1-6 alkoxy or NR.sub.9 R.sub.10 where R.sub.9 and R.sub.10 are independently hydrogen or C.sub.1-4 alkyl and CH.sub.2 OR.sub.11 and R.sub.11 is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkanoyl; R.sub.5 is hydrogen, C.sub.1-6 alkyl or phenyl C.sub.1-4 alkyl; R.sub.6 is phenyl C.sub.1-7 alkyl in which the phenyl moiety is optionally substituted by one or two of halogen, ortho-nitro, meta- or para-methoxy, methyl or NR.sub.12 R.sub.13 wherein R.sub.12 and R.sub.13 are independently hydrogen or C.sub.1-6 alkyl or R.sub.12 and R.sub.13 together are C.sub.2-6 polymethylene or the phenyl moiety is 3,4-disubstituted by methylenedioxy or ethylenedioxy; and R.sub.7 is hydrogen or C.sub.1-4 alkyl, processes for its preparation and its use as a pharmaceutical.
式(I)的化合物或其药学上可接受的盐:
其中,R.sub.1是氢、C.sub.1-6烷基、C.sub.1-6烷氧基或卤素;R.sub.2和R.sub.3都是氢或者一起代表一个键;R.sub.4选自C.sub.1-6烷基、苯基、苯基C.sub.1-4烷基、COR.sub.8,其中R.sub.8是羟基、C.sub.1-6烷氧基或NR.sub.9R.sub.10,其中R.sub.9和R.sub.10独立地是氢或C.sub.1-4烷基和CH.sub.2OR.sub.11,R.sub.11是氢、C.sub.1-4烷基或C.sub.1-4酰基;R.sub.5是氢、C.sub.1-6烷基或苯基C.sub.1-4烷基;R.sub.6是苯基C.sub.1-7烷基,其中苯基部分可以选择地被卤素、邻硝基、间或对甲氧基、甲基或NR.sub.12R.sub.13取代,其中R.sub.12和R.sub.13独立地是氢或C.sub.1-6烷基或R.sub.12和R.sub.13一起是C.sub.2-6聚亚甲基或苯基部分是3,4-二取代的亚甲基二氧基或乙二氧基;R.sub.7是氢或C.sub.1-4烷基,其制备方法以及其作为药物的用途。