申请人:Whitby Research, Inc.
公开号:US05206377A1
公开(公告)日:1993-04-27
Melatonin compounds are disclosed of the formula ##STR1## where R is hydrogen or C.sub.1 to C.sub.6 linear or branched alkylene substituted with phenyl; R.sub.1 is hydrogen, substituted benzyl, naphthylmethyl or taken together with R.sub.2 and the two carbon atoms of the five-membered hetero ring form the group ##STR2## where R.sub.1 ' is C.sub.1 to C.sub.6 linear or branched alkanoyl and R.sub.1 " is hydrogen, C.sub.1 to C.sub.6 linear or branched alkyl or phenyl optionally substituted with one or more halogen, amino, nitro, hydroxy, alkyl, alkoxy or haloalkyl; R.sub.2 is hydrogen, 1-pyrrolyl, 1-pyrrolyl substituted with one or more alkyl or alkoxy, the group --(CH.sub.2).sub.m --NHR.sub.2 '1, where m is 1 to 3 and R.sub.2 ' is phenyl sulfonyl, the phenyl group optionally substituted with alkyl, or --C(O)--R.sub.2 ", where R.sub.2 " is C.sub.1 to C.sub.6 linear or branched alkylene substituted with a substituent selected from the group consisting of hydrogen, phenyl, alkoxy, alkoxy substituted with phenyl, carboxylic acid or the alkyl esters thereof, carbamoyloxy alkyl, substituted carbamoyloxy alkyl and amino or 5-(2-alkanoyl) tetrazole; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are the same or different and are C.sub.1 to C.sub.6 linear or branched alkyl, C.sub.1 to C.sub.6 linear or branched alkoxy, phenoxy or phenoxy substituted with one or more C.sub.1 to C.sub.6 linear or branched alkyl. The compounds display melatonin antagonist and are antiproliferative agents.
本发明公开了化合物的褪黑激素配方##STR1##其中R为氢或取代为苯基的C.sub.1到C.sub.6线性或支链烷基;R.sub.1为氢,取代苯甲基,萘甲基或与R.sub.2和五元杂环的两个碳原子一起形成群##STR2##其中R.sub.1'为C.sub.1到C.sub.6线性或支链酰基,R.sub.1"为氢,C.sub.1到C.sub.6线性或支链烷基或苯基,可选地取代为一个或多个卤素,氨基,硝基,羟基,烷基,烷氧基或卤代烷基;R.sub.2为氢,1-吡咯基,取代有一个或多个烷基或烷氧基的1-吡咯基,群--(CH.sub.2).sub.m--NHR.sub.2 '1,其中m为1到3,R.sub.2 '为苯基磺酰基,苯基可选地取代为烷基,或--C(O)--R.sub.2",其中R.sub.2"为C.sub.1到C.sub.6线性或支链烷基,取代基从氢,苯基,烷氧基,取代苯基烷氧基,羧酸或其烷基酯,碳酰氧烷基,取代碳酰氧烷基和氨基或5-(2-烷酰基)四唑中选择; R.sub.3,R.sub.4,R.sub.5和R.sub.6相同或不同,为C.sub.1到C.sub.6线性或支链烷基,C.sub.1到C.sub.6线性或支链烷氧基,苯氧基或取代一个或多个C.sub.1到C.sub.6线性或支链烷基的苯氧基。这些化合物具有褪黑激素拮抗剂和抗增殖剂的特性。