申请人:Endo Hitoshi
公开号:US20050119256A1
公开(公告)日:2005-06-02
1. An aromatic amino acid derivative represented by the formula (I) or its pharmacologically acceptable salt:
wherein,
R
1
is a hydrogen atom or an amino-protecting group,
R
2
is a halogen atom or an alkyl, aralkyl or aryl group,
R
3
is circle over (1)} a hydrogen atom, circle over (2)} an aroylamino group, circle over (3)} a phenyl group substituted with lower alkyl, phenyl, phenoxy, etc. circle over (4)} a naphthyl or tetrahydronaphthyl group optionally substituted with hydroxy, lower alkoxy or di(lower)alkylamino, circle over (5)} an unsaturated mono-cyclic heterocyclic group containing N, O and/or S substituted with lower alkyl, phenyl, naphthyl or tetrahydroquinolyl, circle over (6)} an unsaturated or partially saturated condensed heterocyclic group containing N, O and/or S, optionally substituted with oxo, carboxy, amino, lower alkyl, etc.; X is a halogen atom, an alkyl group or an alkoxy group; Y is oxygen atom or nitrogen atom; I is 0 or 1; m is 0, 1 or 2; n is an integer of 0-5. This compound can inhibit a transporter (LAT1) of essential amino acid which is one of main nutrition for cancer cells and accordingly cause drain of the essential amino acid on the cancer cells and finally can prohibit the multiplication of cancer cells.
一种芳香族氨基酸衍生物,其化学式为(I)或其药理学上可接受的盐:其中,R1为氢原子或氨基保护基;R2为卤素原子或烷基、芳基烷基或芳基基团;R3为circle over (1)}氢原子,circle over (2)}芳基氨基基团,circle over (3)}苯基,其取代基为较低的烷基、苯基、苯氧基等,circle over (4)}萘基或四氢萘基,可选地取代羟基、较低的烷氧基或二(较低)烷基氨基,circle over (5)}含N、O和/或S的不饱和单环杂环基团,取代基为较低的烷基、苯基、萘基或四氢喹啉基团,circle over (6)}含N、O和/或S的不饱和或部分饱和的紧缩杂环基团,可选地取代为氧代、羧基、氨基、较低的烷基等;X为卤素原子、烷基或烷氧基;Y为氧原子或氮原子;I为0或1;m为0、1或2;n为0-5的整数。该化合物可以抑制癌细胞的主要营养物质之一的必需氨基酸转运体(LAT1),从而导致癌细胞必需氨基酸的流失,最终可以抑制癌细胞的增殖。