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    • 4. 发明公开
    • 히스톤 디아세틸라제 저해활성을 갖는 퀴녹살린 유도체 및그의 제조방법
    • 具有抗组氨酸脱乙酰酶的抑制活性的抗肿瘤剂喹啉衍生物及其制备方法
    • KR1020050023107A
    • 2005-03-09
    • KR1020030060178
    • 2003-08-29
    • 한국화학연구원크리스탈지노믹스(주)
    • 이철해김봉진정희정김재학전미애성태현조중명노성구이태규현영란김진환
    • C07D241/44
    • PURPOSE: Quinoxaline derivatives and a preparation method thereof are provided, which derivatives have inhibitory activity against histone deacetylase, which removes an acetyl group from the lysine tail in the N-terminal of histone, by selectively inducing the terminal differentiation of the tumor cells, and thus by inhibiting the growth of tumor cells. CONSTITUTION: The quinoxaline derivatives represented by formula (1) are provided, wherein R1 is aryl, heteroaryl or C3-C8 cycloalkyl which is optionally substituted by one or more substituents selected from hydroxy, halogen, alkyloxy, alkyl, amino, alkylamino, carboxyl, nitro, amide and sulfone in which the heteroaryl contains one or more elements selected from nitrogen, sulfur and oxygen in a ring; R2 is hydrogen or arylalkyl; A is O, S, CH2, sulfone(SO2), sulfoxide(SO), CONH, NHCO, NX or NXSO2 in which X is hydrogen, C1-5 alkyl or independently the same as R1; and n is 0, 1, 2 or 3. The method for preparing a compound of formula (2) comprises the steps of: (a) acylation of 2-bromo arylalkyl carboxylic acid of formula (6) with 3,4-diamino benzoic ester of formula (7) in an aprotic solvent to prepare a compound of formula (8); (b) cyclization of the compounds of formula (8) in the presence of inorganic salts to prepare quinoxaline ester of formula (9); (c) treating the quinoxaline ester of formula (9) with hydroxide salts to prepare an organic acid of formula (10); and (d) acylation of the organic acid of formula (10) with the protected hydroxyl amine and hydrogenating the reaction product in the presence of palladium, wherein Y is O, S, CH2, SO2, SO or NX.
    • 目的:提供喹喔啉衍生物及其制备方法,该衍生物通过选择性诱导肿瘤细胞的末端分化而对组蛋白脱乙酰酶具有抑制活性,其通过选择性诱导肿瘤细胞的末端分化而从组蛋白的N末端的赖氨酸尾部除去乙酰基, 从而通过抑制肿瘤细胞的生长。 组成:提供由式(1)表示的喹喔啉衍生物,其中R 1是芳基,杂芳基或任选被一个或多个选自羟基,卤素,烷氧基,烷基,氨基,烷基氨基,羧基, 硝基,酰胺和砜,其中杂芳基在环中含有一个或多个选自氮,硫和氧的元素; R2是氢或芳基烷基; A是O,S,CH2,砜(SO2),亚砜(SO),CONH,NHCO,NX或NXSO2,其中X是氢,C1-5烷基或与R1独立地相同; 制备式(2)化合物的方法包括以下步骤:(a)将式(6)的2-溴芳基烷基羧酸与3,4-二氨基苯甲酸 (7)的酯在非质子溶剂中制备式(8)的化合物; (b)在无机盐存在下环化式(8)化合物以制备式(9)的喹喔啉酯; (c)用氢氧化物盐处理式(9)的喹喔啉酯以制备式(10)的有机酸; 和(d)用保护的羟基胺酰化式(10)的有机酸,并在钯存在下氢化反应产物,其中Y是O,S,CH 2,SO 2,SO或NX。
    • 8. 发明公开
    • 히스톤 디아세틸라제 저해활성을 갖는 벤즈옥사진 유도체및 그의 제조방법
    • 具有抗组氨酸脱乙酰酶的抑制活性的抗肿瘤剂苄唑胺衍生物及其制备方法
    • KR1020050023106A
    • 2005-03-09
    • KR1020030060177
    • 2003-08-29
    • 한국화학연구원크리스탈지노믹스(주)
    • 이철해김봉진정희정김재학전미애김광호성태현조중명노성구이태규현영란전영호
    • C07D265/36
    • PURPOSE: Benzoxazine derivatives and a preparation method thereof are provided, which compounds have inhibitory activity against histone deacetylase which removes an acetyl group from the lysine tail in the N-terminal of histone to selectively induce the terminal differentiation of the tumor cells, so that the compounds can effectively inhibit growth of tumor cells. CONSTITUTION: The benzoxazine derivatives represented by formula (1) are provided, wherein R1 is aryl, heteroaryl or C3-C8 cycloaryl which is optionally substituted with one or more substituents selected from hydroxy, halogen, alkyloxy, alkyl, amino, alkylamino, carboxyl, nitro, amide and sulfone in which the heteroaryl contains one or more elements selected from nitrogen, sulfur and oxygen in a ring; R2 is hydrogen or arylalkyl; A is O, S, CH2, sulfone(SO2), sulfoxide(SO), CONH, NHCO, NX or NXSO2 in which X is hydrogen, C1-5 alkyl or independently the same as R1; and n is 0, 1, 2 or 3. The method for preparing compounds of formula (2) comprises the steps of: (a) acylation reacting 2-bromo arylalkyl carboxylic acid of formula (6) with hydroxyamino benzoic ester of formula (7) in aprotic solvent to prepare compounds of formula (8); (b) cyclization of the compounds of formula (8) in the presence of inorganic salt to prepare benzoxazine ester of formula (9); (c) treating the benzoxazine ester of formula (9) with hydroxide salt to prepare an organic acid of formula (10); (d) acylation reacting the organic acid of formula (10) with the protected hydroxyl amine in aprotic solvent to prepare compounds of formula (11); and (e) hydrogenating the compounds of formula (11) in the presence of palladium, wherein Y is O, S, CH2, SO2, SO or NX.
    • 目的:提供苯并恶嗪衍生物及其制备方法,该化合物对组蛋白脱乙酰酶具有抑制活性,从组蛋白N末端的赖氨酸尾部除去乙酰基,以选择性诱导肿瘤细胞的末端分化, 化合物可以有效抑制肿瘤细胞的生长。 构成:提供由式(1)表示的苯并恶嗪衍生物,其中R1是芳基,杂芳基或C3-C8环芳基,其任选被一个或多个选自羟基,卤素,烷氧基,烷基,氨基,烷基氨基,羧基, 硝基,酰胺和砜,其中杂芳基在环中含有一个或多个选自氮,硫和氧的元素; R2是氢或芳基烷基; A是O,S,CH2,砜(SO2),亚砜(SO),CONH,NHCO,NX或NXSO2,其中X是氢,C1-5烷基或与R1独立地相同; 制备式(2)化合物的方法包括以下步骤:(a)使式(6)的2-溴芳基烷基羧酸与式(7)的羟基氨基苯甲酸酯反应进行酰化反应 )在非质子溶剂中制备式(8)化合物; (b)在无机盐存在下使式(8)化合物环化以制备式(9)的苯并恶嗪酯; (c)用氢氧化物盐处理式(9)的苯并恶嗪酯以制备式(10)的有机酸; (d)在非质子传递溶剂中使式(10)的有机酸与被保护的羟基胺反应,进行酰化反应以制备式(11)的化合物; 和(e)在钯的存在下氢化式(11)的化合物,其中Y是O,S,CH 2,SO 2,SO或NX。