会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Inhibitors of glutaminyl cyclase
    • 谷氨酰胺环化酶抑制剂
    • US08420684B2
    • 2013-04-16
    • US11937146
    • 2007-11-08
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko BuchholzAndre J. Niestroj
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko BuchholzAndre J. Niestroj
    • A61K31/4166A61K31/4178C07D233/70C07D233/88
    • C07D405/14C07D401/14C07D403/04C07D403/06C07D403/14C07D409/14C07D417/14
    • The present invention relates to compounds of formula (I), combinations and uses thereof for disease therapy, or a pharmaceutically acceptable salt, solvate or polymorph thereof, including all tautomers and stereoisomers thereof wherein R1 represents heteroaryl; -carbocyclyl-heteroaryl; -alkenylheteroaryl or -alkylheteroaryl; R2 represents alkyl which may optionally be substituted by hydroxy; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl and hydroxy; aryl; -aryl-heteroaryl; -heteroaryl-aryl; -aryl-heterocyclyl; H; heteroaryl; or heterocyclyl, which may optionally be substituted by one or more groups selected from alkyl oxo and hydroxy; R3 represents alkyl which may optionally be substituted by one of more groups selected from alkoxy, amine, hydroxy and —C(O)Oalkyl; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl haloalkyl, alkoxy, amine, hydroxy and —C(O)Oalkyl; -alkyl-aryl; -alkyl(aryl)2; -alkyl-heteroaryl; -alkyl(heteroaryl)2; -alkyl(heteroaryl)(aryl); -aryl-O-aryl; aryl; heterocyclyl, -alkyl-C(O)-heterocyclyl, -alkyl-heterocyclyl, -alkyl-C(O)—NR5-heterocyclyl or -alkyl(heterocyclyl)2 in any of which groups heterocyclyl may be optionally substituted by one or more groups selected from alkyl hydroxy and oxo; -heteroaryl; or -hydroxyalkylaryl; R4 represents H or C1-3 alkyl; R5 represents H or C1-3 alkyl; and X represents O or S.
    • 本发明涉及式(I)化合物,其用于疾病治疗的组合和用途,或其药学上可接受的盐,溶剂化物或多晶型物,包括其所有互变异构体和立体异构体,其中R 1表示杂芳基; 羧基 - 杂芳基; - 烯基杂芳基或 - 烷基杂芳基; R 2表示可任意被羟基取代的烷基; 碳环基,其可任选被一个或多个选自烷基和羟基的基团取代; 芳基; 芳基 - 杂芳基; - 杂芳基 - 芳基; 芳基 - 杂环基 H; 杂芳基; 或杂环基,其可任选被一个或多个选自烷基氧基和羟基的基团取代; R3表示可以任选被选自烷氧基,胺,羟基和-C(O)O烷基的更多个基团之一取代的烷基; 碳环基,其可任选被一个或多个选自烷基卤代烷基,烷氧基,胺,羟基和-C(O)O烷基的基团取代; - 烷基 - 芳基; - 烷基(芳基)2; - 烷基 - 杂芳基 - 烷基(杂芳基)2; - 烷基(杂芳基)(芳基); 芳基-O-芳基; 芳基; 杂环基, - 烷基-C(O) - 杂环基, - 烷基 - 杂环基, - 烷基-C(O)-NR5 - 杂环基或 - 烷基(杂环基)2,其中任意一个组杂环基可以任选被一个或多个基团取代 选自烷基羟基和氧代; 杂芳基 或 - 羟基烷基芳基; R 4表示H或C 1-3烷基; R5表示H或C1-3烷基; X表示O或S.
    • 2. 发明授权
    • Inhibitors of glutaminyl cyclase
    • 谷氨酰胺环化酶抑制剂
    • US08278345B2
    • 2012-10-02
    • US11937149
    • 2007-11-08
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko BuchholzAndre J. Niestroj
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko BuchholzAndre J. Niestroj
    • A61K31/4025A61K31/4178C07D207/00C07D403/06C07D233/56
    • C07D403/06C07D401/14C07D403/04C07D403/14C07D405/14C07D409/14C07D413/14C07D417/04
    • The present invention relates to compounds of formula (I), combinations and uses thereof for disease therapy, R1 represents heteroaryl, -carbocyclyl-heteroaryl, -alkenylheteroaryl or -alkylheteroaryl; R2 represents hydrogen; halogen; alkenyl; alkynyl; -alkenylaryl; -alkenylheteroaryl; alkyl, which may optionally be substituted by one or more groups selected from halogen, hydroxyl, alkoxy-, -thioalkyl, —C(O)OH and —C(O)O-alkyl; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl, halogen, hydroxyl, alkoxy-, -thioalkyl, —C(O)OH and —C(O)O-alkyl; -alkylcarbocyclyl; -alkylheterocyclyl; aryl; heteroaryl; heterocyclyl; -alkylaryl; -alkyl(aryl)2, -alkylheteroaryl; -aryl-heteroaryl; -heterocyclyl-aryl; -aryl-aryl; -heteroaryl-aryl; -heteroaryl-heteroaryl, and —C(O)R4; R3 represents halogen; alkyl optionally substituted by one or more groups selected from halogen, hydroxyl, alkoxy, thioalkyl, —C(O)OH and —C(O)O-alkyl; aryl; heteroaryl; —C(O)R5; R4 and R5 independently represent alkyl, aryl, heteroaryl, -alkylaryl, -alkylheteroaryl, carbocyclyl, heterocyclyl, -alkylcarbocyclyl and -alkylheterocyclyl, with the proviso that, when R1 is imidazolyl, -carbocyclyl-imidazolyl, -alkenyl-imidazolyl or -alkyl-imidazolyl, then R3 may not be —C(O)R5.
    • 本发明涉及式(I)化合物,其用于疾病治疗的组合和用途,R 1表示杂芳基, - 碳环基 - 杂芳基, - 烯基杂芳基或 - 烷基杂芳基; R2表示氢; 卤素; 烯基; 炔基; - 烯基芳基; 烯基杂芳基 烷基,其可任选被一个或多个选自卤素,羟基,烷氧基 - , - 硫代烷基,-C(O)OH和-C(O)O-烷基的基团取代; 碳环基,其可任选被一个或多个选自烷基,卤素,羟基,烷氧基 - , - 硫代烷基,-C(O)OH和-C(O)O-烷基的基团取代; - 烷基羧基 - 烷基杂环基 芳基; 杂芳基; 杂环基 - 烷基芳基; - 烷基(芳基)2, - 烷基杂芳基; 芳基 - 杂芳基; - 杂环基 - 芳基; 芳基 - 芳基; - 杂芳基 - 芳基; - 杂芳基 - 杂芳基和-C(O)R 4; R3表示卤素; 任选被一个或多个选自卤素,羟基,烷氧基,硫代烷基,-C(O)OH和-C(O)O-烷基的基团取代的烷基; 芳基; 杂芳基; -C(O)R 5; R 4和R 5独立地表示烷基,芳基,杂芳基, - 烷基芳基, - 烷基杂芳基,碳环基,杂环基, - 烷基碳环基和 - 烷基杂环基,条件是当R 1是咪唑基, - 环保基 - 咪唑基, - 烯基 - 咪唑基或 - 咪唑基,那么R 3可以不是-C(O)R 5。
    • 3. 发明申请
    • Novel Inhibitors of Glutaminyl Cyclase
    • 新型抑制谷氨酰胺环化酶
    • US20080221086A1
    • 2008-09-11
    • US11937146
    • 2007-11-08
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko BuchholzAndre J. Niestroj
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko BuchholzAndre J. Niestroj
    • C07D403/02C07D401/14C07D403/14C07D411/14A61K31/4178A61K31/4725A61K31/5377A61K31/551A61P31/00A61P37/00A61P35/00A61P25/00A61K31/541A61K31/495A61K31/445C07D413/14C07D405/00C07D401/02
    • C07D405/14C07D401/14C07D403/04C07D403/06C07D403/14C07D409/14C07D417/14
    • The present invention relates to compounds of formula (I), combinations and uses thereof for disease therapy, or a pharmaceutically acceptable salt, solvate or polymorph thereof, including all tautomers and stereoisomers thereof wherein R1 represents heteroaryl; -carbocyclyl-heteroaryl; -alkenylheteroaryl or -alkylheteroaryl; R2 represents alkyl which may optionally be substituted by hydroxy; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl and hydroxy; aryl; -aryl-heteroaryl; -heteroaryl-aryl; -aryl-heterocyclyl; H; heteroaryl; or heterocyclyl, which may optionally be substituted by one or more groups selected from alkyl oxo and hydroxy; R3 represents alkyl which may optionally be substituted by one of more groups selected from alkoxy, amine, hydroxy and —C(O)Oalkyl; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl haloalkyl, alkoxy, amine, hydroxy and —C(O)Oalkyl; -alkyl-aryl; -alkyl(aryl)2; -alkyl-heteroaryl; -alkyl(heteroaryl)2; -alkyl(heteroaryl)(aryl); -aryl-O-aryl; aryl; heterocyclyl, -alkyl-C(O)-heterocyclyl, -alkyl-heterocyclyl, -alkyl-C(O)—NR5-heterocyclyl or -alkyl(heterocyclyl)2 in any of which groups heterocyclyl may be optionally substituted by one or more groups selected from alkyl hydroxy and oxo; -heteroaryl; or -hydroxyalkylaryl; R4 represents H or C1-3 alkyl; R5 represents H or C1-3 alkyl; and X represents O or S.
    • 本发明涉及式(I)化合物,其用于疾病治疗的组合和用途,或其药学上可接受的盐,溶剂化物或多晶型物,包括所有互变异构体和立体异构体,其中R 1表示杂芳基; 羧基 - 杂芳基; - 烯基杂芳基或 - 烷基杂芳基; R 2表示可任选被羟基取代的烷基; 碳环基,其可任选被一个或多个选自烷基和羟基的基团取代; 芳基; 芳基 - 杂芳基; - 杂芳基 - 芳基; 芳基 - 杂环基 H; 杂芳基; 或杂环基,其可任选被一个或多个选自烷基氧基和羟基的基团取代; R 3表示可任意被选自烷氧基,胺,羟基和-C(O)O烷基中的一个以上基团取代的烷基; 碳环基,其可任选被一个或多个选自烷基卤代烷基,烷氧基,胺,羟基和-C(O)O烷基的基团取代; - 烷基 - 芳基; - 烷基(芳基)2。 - 烷基 - 杂芳基; - 烷基(杂芳基)2 - - 烷基(杂芳基)(芳基); 芳基-O-芳基; 芳基; 杂环基, - 烷基-C(O) - 杂环基, - 烷基 - 杂环基, - 烷基-C(O)-NR 5 - 杂环基或 - 烷基(杂环基) 在其中任何一个基团中,杂环基可以任选被一个或多个选自烷基羟基和氧代基团取代; 杂芳基 或 - 羟基烷基芳基; R 4表示H或C 1-3烷基; R 5表示H或C 1-3烷基; X表示O或S.
    • 4. 发明申请
    • Novel Inhibitors of Glutaminyl Cyclase
    • 新型抑制谷氨酰胺环化酶
    • US20090269301A1
    • 2009-10-29
    • US11937149
    • 2007-11-08
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko BuchholzAndre J. Niestroj
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko BuchholzAndre J. Niestroj
    • A61K38/20C07D403/06A61K31/4178A61K31/4439C07D401/14A61P25/28A61K31/4709
    • C07D403/06C07D401/14C07D403/04C07D403/14C07D405/14C07D409/14C07D413/14C07D417/04
    • The present invention relates to compounds of formula (I), combinations and uses thereof for disease therapy, R1 represents heteroaryl, -carbocyclyl-heteroaryl, -alkenylheteroaryl or -alkylheteroaryl; R2 represents hydrogen; halogen; alkenyl; alkynyl; -alkenylaryl; -alkenylheteroaryl; alkyl, which may optionally be substituted by one or more groups selected from halogen, hydroxyl, alkoxy-, -thioalkyl, —C(O)OH and —C(O)O-alkyl; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl, halogen, hydroxyl, alkoxy-, -thioalkyl, —C(O)OH and —C(O)O-alkyl; -alkylcarbocyclyl; -alkylheterocyclyl; aryl; heteroaryl; heterocyclyl; -alkylaryl; -alkyl(aryl)2, -alkylheteroaryl; -aryl-heteroaryl; -heterocyclyl-aryl; -aryl-aryl; -heteroaryl-aryl; -heteroaryl-heteroaryl, and —C(O)R4; R3 represents halogen; alkyl optionally substituted by one or more groups selected from halogen, hydroxyl, alkoxy, thioalkyl, —C(O)OH and —C(O)O-alkyl; aryl; heteroaryl; —C(O)R5; R4 and R5 independently represent alkyl, aryl, heteroaryl, -alkylaryl, -alkylheteroaryl, carbocyclyl, heterocyclyl, -alkylcarbocyclyl and -alkylheterocyclyl, with the proviso that, when R1 is imidazolyl, -carbocyclyl-imidazolyl, -alkenyl-imidazolyl or -alkyl-imidazolyl, then R3 may not be —C(O)R5.
    • 本发明涉及式(I)化合物,其用于疾病治疗的组合和用途,R 1表示杂芳基, - 碳环基 - 杂芳基, - 烯基杂芳基或 - 烷基杂芳基; R2表示氢; 卤素; 烯基; 炔基; - 烯基芳基; 烯基杂芳基 烷基,其可任选被一个或多个选自卤素,羟基,烷氧基 - , - 硫代烷基,-C(O)OH和-C(O)O-烷基的基团取代; 碳环基,其可任选被一个或多个选自烷基,卤素,羟基,烷氧基 - , - 硫代烷基,-C(O)OH和-C(O)O-烷基的基团取代; - 烷基羧基 - 烷基杂环基 芳基; 杂芳基; 杂环基; - 烷基芳基; - 烷基(芳基)2, - 烷基杂芳基; 芳基 - 杂芳基; - 杂环基 - 芳基; 芳芳基 - 杂芳基 - 芳基; - 杂芳基 - 杂芳基和-C(O)R 4; R3表示卤素; 任选被一个或多个选自卤素,羟基,烷氧基,硫代烷基,-C(O)OH和-C(O)O-烷基的基团取代的烷基; 芳基; 杂芳基; -C(O)R 5; R 4和R 5独立地表示烷基,芳基,杂芳基, - 烷基芳基, - 烷基杂芳基,碳环基,杂环基, - 烷基碳环基和 - 烷基杂环基,条件是当R 1是咪唑基, - 环保基 - 咪唑基, - 烯基 - 咪唑基或 - 咪唑基,那么R 3可以不是-C(O)R 5。
    • 5. 发明授权
    • Inhibitors of glutaminyl cyclase
    • US07741354B2
    • 2010-06-22
    • US11937159
    • 2007-11-08
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko Buchholz
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko Buchholz
    • A61K31/41C07D257/00
    • C07D403/12C07D401/12C07D401/14C07D403/14C07D405/12C07D405/14C07D409/14C07D417/14
    • The present invention relates to compounds of formula (I), combinations and uses thereof for disease therapy, wherein: R1 represents heteroaryl, -carbocyclyl-heteroaryl, -alkenylheteroaryl or -alkylheteroaryl; R2 represents alkyl, which may optionally be substituted by one or more groups selected from amino, halogen, hydroxyl, -alkoxy, -thioalkyl, —C(O)O-alkyl and —C(O)OH; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl, haloalkyl, amino, halogen, hydroxyl, alkoxy-, -thioalkyl, —C(O)O-alkyl and —C(O)OH; alkenyl; alkynyl; -alkyl-aryl; -alkyl-heteroaryl; -alkyl-heterocyclyl; -alkyl-carbocyclyl; -aryl-heteroaryl; -heteroaryl-aryl; -heteroaryl-heteroaryl; -aryl-aryl; -aryl (monocyclic or bicyclic); heteroaryl (monocyclic or bicyclic); heterocyclyl; or R2 together with R4 may form a carbocyclyl group optionally substituted by one or more alkyl groups; R3 represents alkyl, which may optionally be substituted by one or more groups selected from amino, halogen, hydroxyl, alkoxy-, -thioalkyl, —C(O)OH and —C(O)O-alkyl; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl, amino, halogen, haloalkyl, hydroxyl, -alkoxy, -thioalkyl, —C(O)OH and —C(O)O-alkyl; alkenyl; -alkyl-aryl; -alkyl(aryl)2, -alkyl(heteroaryl)2, -alkyl(aryl)(heteroaryl), -alkyl-heteroaryl; -alkyl-heterocyclyl which heterocyclyl group may optionally be substituted by one or more groups selected from alkyl, hydroxy and oxo ; -alkyl-carbocyclyl; -aryl-heteroaryl; -heteroaryl-aryl; -aryl-aryl; -aryl-O-aryl, -heteroaryl-heteroaryl; -aryl; heteroaryl; heterocyclyl; -aryl-alkyl-aryl; -aryl-O-alkyl-aryl; -alkyl-C(O)—NH-alkyl-aryl; -alkyl-C(O)—NH-alkyl-heteroaryl; -alkyl-C(O)—NH-alkyl-heterocyclyl; -alkyl-C(O)—(N-piperidinyl) or -alkyl-C(O)—(N-pyrrolidinyl) in which piperidinyl or pyrrolidinyl may optionally be fused to optionally substituted phenyl. R4 represents H or alkyl.
    • 6. 发明申请
    • Novel Inhibitors of Glutaminyl Cyclase
    • US20080207715A1
    • 2008-08-28
    • US11937159
    • 2007-11-08
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko Buchholz
    • Michael ThormannMichael AltmstetterAndreas TremlUlrich HeiserMirko Buchholz
    • A61K31/41C07D403/02A61K35/04A61P25/00A61P19/00
    • C07D403/12C07D401/12C07D401/14C07D403/14C07D405/12C07D405/14C07D409/14C07D417/14
    • The present invention relates to compounds of formula (I), combinations and uses thereof for disease therapy, wherein: R1 represents heteroaryl, -carbocyclyl-heteroaryl, -alkenylheteroaryl or -alkylheteroaryl; R2 represents alkyl, which may optionally be substituted by one or more groups selected from amino, halogen, hydroxyl, -alkoxy, -thioalkyl, —C(O)O-alkyl and —C(O)OH; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl, haloalkyl, amino, halogen, hydroxyl, alkoxy-, -thioalkyl, —C(O)O-alkyl and —C(O)OH; alkenyl; alkynyl; -alkyl-aryl; -alkyl-heteroaryl; -alkyl-heterocyclyl; -alkyl-carbocyclyl; -aryl-heteroaryl; -heteroaryl-aryl; -heteroaryl-heteroaryl; -aryl-aryl; -aryl (monocyclic or bicyclic); heteroaryl (monocyclic or bicyclic); heterocyclyl; or R2 together with R4 may form a carbocyclyl group optionally substituted by one or more alkyl groups; R3 represents alkyl, which may optionally be substituted by one or more groups selected from amino, halogen, hydroxyl, alkoxy-, -thioalkyl, —C(O)OH and —C(O)O-alkyl; carbocyclyl, which may optionally be substituted by one or more groups selected from alkyl, amino, halogen, haloalkyl, hydroxyl, -alkoxy, -thioalkyl, —C(O)OH and —C(O)O-alkyl; alkenyl; -alkyl-aryl; -alkyl(aryl)2, -alkyl(heteroaryl)2, -alkyl(aryl)(heteroaryl), -alkyl-heteroaryl; -alkyl-heterocyclyl which heterocyclyl group may optionally be substituted by one or more groups selected from alkyl, hydroxy and oxo ; -alkyl-carbocyclyl; -aryl-heteroaryl; -heteroaryl-aryl; -aryl-aryl; -aryl-O-aryl, -heteroaryl-heteroaryl; -aryl; heteroaryl; heterocyclyl; -aryl-alkyl-aryl; -aryl-O-alkyl-aryl; -alkyl-C(O)—NH-alkyl-aryl; -alkyl-C(O)—NH-alkyl-heteroaryl; -alkyl-C(O)—NH-alkyl-heterocyclyl; -alkyl-C(O)—(N-piperidinyl) or -alkyl-C(O)—(N-pyrrolidinyl) in which piperidinyl or pyrrolidinyl may optionally be fused to optionally substituted phenyl. R4 represents H or alkyl.
    • 9. 发明授权
    • Inhibitors
    • 抑制剂
    • US07803810B2
    • 2010-09-28
    • US12045163
    • 2008-03-10
    • Daniel RamsbeckUlrich HeiserMirko BuchholzAndre J. Niestroj
    • Daniel RamsbeckUlrich HeiserMirko BuchholzAndre J. Niestroj
    • C07D471/04A61K31/437A61P25/00
    • C07D471/04
    • Compounds of formula (I), combinations and uses thereof for disease therapy, or a pharmaceutically acceptable salt or solvate thereof, including all tautomers, stereoisomers and polymorphs thereof wherein: R1 represents C2-8alkyl; C2-8alkenyl; —(C1-6alkyl)-aryl; —(C1-6alkyl)-heteroaryl; —(C1-6alkyl)-carbocyclyl; —(C1-6alkyl)-heterocyclyl; -aryl; -heteroaryl; -carbocyclyl or -heterocyclyl; wherein said aryl or heteroaryl groups may be optionally substituted by one or more substituents selected from, C1-4alkyl, C1-4-fluoroalkyl, C1-4alkoxy, C1-4-fluoroalkoxy, hydroxy, —SO2(C1-4alkyl), —SO2N(C1-4alkyl)(C1-4alkyl), —SOC1-4alkyl, —SOC3-6cycloalkyl —C(O)O(C1-4alkyl), benzyloxy and phenyl; and wherein said carbocyclyl and heterocyclyl groups may be optionally substituted by one or more substituents selected from —C1-4 alkyl, —C1-4 alkoxy, hydroxyl, halogen and oxo; R2 represents H; C1-4alkyl or halogen; R3 represents H; C1-4alkyl or halogen; and R4 represents H; C1-4alkyl or halogen.
    • 式(I)的化合物,其用于疾病治疗的组合和用途,或其药学上可接受的盐或溶剂合物,包括所有互变异构体,立体异构体和多晶型物,其中:R1代表C2-8烷基; C2-8烯基; - (C 1-6烷基) - 芳基; - (C 1-6烷基) - 杂芳基; - (C 1-6烷基) - 碳环基; - (C 1-6烷基) - 杂环基; 芳基 杂芳基 碳环基或杂环基; 其中所述芳基或杂芳基可以任选地被一个或多个选自C 1-4烷基,C 1-4 - 氟烷基,C 1-4烷氧基,C 1-4 - 氟烷氧基,羟基,-SO 2(C 1-4烷基),-SO 2 N (C 1-4烷基)(C 1-4烷基),-SOC 1-4烷基,-SOC 3 - 6环烷基-C(O)O(C 1-4烷基),苄氧基和苯基; 并且其中所述碳环基和杂环基可任选被一个或多个选自-C 1-4烷基,-C 1-4烷氧基,羟基,卤素和氧代的取代基取代; R2表示H; C 1-4烷基或卤素; R3表示H; C 1-4烷基或卤素; 且R 4表示H; C 1-4烷基或卤素。