申请人:Whitby Research, Inc.
公开号:US05314908A1
公开(公告)日:1994-05-24
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 hydrogen, 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.
该文披露了化合物的褪黑激素配方,其中R为氢或被苯基取代的C1到C6直链或支链烷基;R1为氢,取代苯甲基,萘甲基或与R2和五元杂环的两个碳原子一起形成如下基团:其中R1'为C1到C6直链或支链烷酰基,R1"为氢,C1到C6直链或支链烷基或苯基,其可选择性地被一个或多个卤素,氨基,硝基,羟基,烷基,烷氧基或卤代烷基取代;R2为氢,1-吡咯基,1-吡咯基,它被一个或多个烷基或烷氧基取代,该基团-(CH2)m-NHR2'1,其中m为1到3,R2'为苯基磺酰基,苯基可选择性地被烷基取代,或-C(O)-R2",其中R2"为C1到C6直链或支链烷基,其被从氢,苯基,烷氧基,被苯基取代的烷氧基,羧酸或其烷基酯,氨基甲酰氧基烷基,取代的氨基甲酰氧基烷基和氨基或5-(2-烷酰基)四唑的取代基中选择的一种取代;R3,R4,R5和R6相同或不同,为氢,C1到C6直链或支链烷基,C1到C6直链或支链烷氧基,苯氧基或被一个或多个C1到C6直链或支链烷基取代的苯氧基。这些化合物表现出褪黑激素拮抗剂和抗增殖剂的特性。