申请人:Dr. Lo. Zambeletti S.p.A.
公开号:US04994450A1
公开(公告)日:1991-02-19
A compound, or a solvate or salt thereof, of formula (I) ##STR1## in which: R.sub.1 and R.sub.2 are independently hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.3-6 cycloalkyl or C.sub.4-12 cycloalkylalkyl groups, or together form a C.sub.2-8 branched or linear polymethylene or C.sub.2-6 alkenylene group optionally substituted with a hetero-atom, provided that R.sub.1 and R.sub.2 are not simultaneously hydrogen; R.sub.3 is hydrogen, C.sub.1-6 alkyl, preferably methyl or ethyl, or phenyl, or R.sub.3 together with R.sub.1 form a --(CH.sub.2).sub.3 -- or --(CH.sub.2).sub.4 -- group; p is 1, 2, 3 or 4, and R is a group of formula (II) ##STR2## in which the group --(CHR.sub.4).sub.n --X-- is in the meta- or para-position with respect to YR.sub.5 or R.sub.6, R.sub.4 is hydrogen or C.sub.1-6 alkyl, preferably hydrogen; n is 0, 1 or 2, preferably 1; X is a direct bond, or O, S or NR.sub.a in which R.sub.a is hydrogen or C.sub.1-6 alkyl, and is preferably a direct bond; Y is >C.dbd.O, >CHOH, --S.dbd.O or --SO.sub.2 ; each of R.sub.5 and R.sub.6 is C.sub.1-6 alkyl, or R.sub.5 and R.sub.6 are linked together and R.sub.5 represents --(Z).sub.m -- where m is 0 or 1 and Z is O, S or NR.sub.7 where R.sub.7 is hydrogen or C.sub.1-6 alkyl, and R.sub.6 represents --(CH.sub.2).sub.9 -- where q is an integer of from 1 to 4, preferably 2 or 3, and in which one or more of the --(CH.sub.2)-- groups is optionally substituted by a C.sub.1-6 alkyl group, is useful for the treatment of pain.
化合物或其溶剂化物或盐的化学式(I)##STR1##其中:R.sub.1和R.sub.2独立地为氢、C.sub.1-6烷基、C.sub.2-6烯基、C.sub.3-6环烷基或C.sub.4-12环烷基烷基,或者一起形成C.sub.2-8分支或线性聚亚甲基或C.sub.2-6烯基烯基,可选择地被杂原子取代,前提是R.sub.1和R.sub.2不能同时为氢;R.sub.3为氢、C.sub.1-6烷基,优选甲基或乙基,苯基,或者R.sub.3和R.sub.1一起形成--(CH.sub.2).sub.3--或--(CH.sub.2).sub.4--基团;p为1、2、3或4,R为化学式(II)##STR2##其中,--(CHR.sub.4).sub.n--X--基团在与YR.sub.5或R.sub.6的间位或对位上,R.sub.4为氢或C.sub.1-6烷基,优选为氢;n为0、1或2,优选为1;X为直接键,或O、S或NR.sub.a,其中R.sub.a为氢或C.sub.1-6烷基,优选为直接键;Y为>C.dbd.O、>CHOH、--S.dbd.O或--SO.sub.2;每个R.sub.5和R.sub.6为C.sub.1-6烷基,或者R.sub.5和R.sub.6连接在一起,R.sub.5代表--(Z).sub.m--,其中m为0或1,Z为O、S或NR.sub.7,R.sub.7为氢或C.sub.1-6烷基,R.sub.6代表--(CH.sub.2).sub.9--,其中q为1到4的整数,优选为2或3,并且其中一个或多个--(CH.sub.2)--基团可选择地被C.sub.1-6烷基取代,用于治疗疼痛。