2-amino-6-methoxy-3-nitro-benzoic acid | 237056-73-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-amino-6-methoxy-3-nitro-benzoic acid
• 英文别名: 2-Amino-6-methoxy-3-nitrobenzoic acid
• CAS: 237056-73-4
• 化学式: C₈H₈N₂O₅
• 分子量: 212.162
• InChiKey: MRWQATKAWVAROO-UHFFFAOYSA-N

物化性质

• 沸点：
  436.5±45.0 °C(Predicted)
• 密度：
  1.514±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  118
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2-amino-6-methoxy-3-nitro-benzoic acid 在 10percent Pd/C 盐酸 、 氯化亚砜 、 氢气 、 三溴化硼 、 溶剂黄146 作用下， 以 乙醇 、 二氯甲烷 、 水 为溶剂， 20.0 ℃ 、344.75 kPa 条件下， 反应 12.1h， 生成 10-Hydroxy-4-methoxy-benzo[a]phenazine-11-carboxylic acid (2-dimethylamino-ethyl)-amide
  参考文献：
  名称：

  Novel Angular Benzophenazines:  Dual Topoisomerase I and Topoisomerase II Inhibitors as Potential Anticancer Agents

  摘要：

  A series of substituted angular benzophenazines were prepared using a new synthetic route via a novel regiocontrolled condensation of 1,2-naphthoquinones and 2,3-diaminobenzoic acids. The synthesis and biological activity of this new series of substituted 8,9-benzo[a]phenazine carboxamide systems are described. The analogues were evaluated against the H69 parental human small cell lung carcinoma cell line and H69/LX4 resistant cell line which overexpresses P-glycoprotein. Selected analogues were evaluated against the COR-L23-parental human non small cell lung carcinoma cell line and the COR-L23/R resistant cell line which overexpresses multidrug resistance protein. This series of novel angular benzophenazines were potent cytotoxic agents in these cell lines and may be able to circumvent multidrug resistance mechanisms which result in the lack of efficacy of many drugs in cancer chemotherapy. These compounds show dual inhibition of topoisomerase I and topoisomerase II and thus target two key enzymes responsible for the topology of DNA that are active at different points in the cell cycle. The introduction of chirality into the carboxamide side chain of these novel benzophenazine carboxamides has resulted in the discovery of a potent enantiospecific series of cytotoxic agents, exemplified by 4-methoxy-benzo[a]phenazine-11-carboxylic acid (2-(dimethylamino)-1-(R)methyl-ethyl)-amide, XR11576 ((R)-4j"). In vivo activity has been demonstrated for 4-methoxy-benzo[a]phenazine-11-carboxylic acid (2-(dimethylamino)-1-(R)-methyl-ethyl)-amide, XR11576, after intravenous administration to female mice, and this compound has been selected as a development candidate for further evaluation.

  DOI：

  10.1021/jm010329a
• 作为产物：
  描述：

  2-amino-6-methoxy-3-nitro-benzoic acid methyl ester 在 氢氧化钾 作用下， 以 乙醇 为溶剂， 反应 2.0h， 以82%的产率得到2-amino-6-methoxy-3-nitro-benzoic acid
  参考文献：
  名称：

  Novel Angular Benzophenazines:  Dual Topoisomerase I and Topoisomerase II Inhibitors as Potential Anticancer Agents

  摘要：

  A series of substituted angular benzophenazines were prepared using a new synthetic route via a novel regiocontrolled condensation of 1,2-naphthoquinones and 2,3-diaminobenzoic acids. The synthesis and biological activity of this new series of substituted 8,9-benzo[a]phenazine carboxamide systems are described. The analogues were evaluated against the H69 parental human small cell lung carcinoma cell line and H69/LX4 resistant cell line which overexpresses P-glycoprotein. Selected analogues were evaluated against the COR-L23-parental human non small cell lung carcinoma cell line and the COR-L23/R resistant cell line which overexpresses multidrug resistance protein. This series of novel angular benzophenazines were potent cytotoxic agents in these cell lines and may be able to circumvent multidrug resistance mechanisms which result in the lack of efficacy of many drugs in cancer chemotherapy. These compounds show dual inhibition of topoisomerase I and topoisomerase II and thus target two key enzymes responsible for the topology of DNA that are active at different points in the cell cycle. The introduction of chirality into the carboxamide side chain of these novel benzophenazine carboxamides has resulted in the discovery of a potent enantiospecific series of cytotoxic agents, exemplified by 4-methoxy-benzo[a]phenazine-11-carboxylic acid (2-(dimethylamino)-1-(R)methyl-ethyl)-amide, XR11576 ((R)-4j"). In vivo activity has been demonstrated for 4-methoxy-benzo[a]phenazine-11-carboxylic acid (2-(dimethylamino)-1-(R)-methyl-ethyl)-amide, XR11576, after intravenous administration to female mice, and this compound has been selected as a development candidate for further evaluation.

  DOI：

  10.1021/jm010329a

文献信息

• A convenient copper-catalyzed direct amination of nitroarenes with O-alkylhydroxylamines
  作者：Shinzo Seko、Kunihito Miyake、Norio Kawamura

  DOI：10.1039/a901537j

  日期：——

  O-Alkylhydroxylamines, particularly O-methylhydroxylamine, aminate nitroarenes in the presence of a strong base and a copper catalyst to give aminonitroarenes in good yields. ortho- or para-Amination with respect to the nitro group takes place, and in some cases the ortho-aminated product is preferentially obtained. With 3-substituted nitrobenzenes where the substituent has a lone pair of electrons, preferential amination occurs at the 2-position to give the sterically most congested 3c–f, 14 and 22g.

  O-烷基羟胺，尤其是O-甲基羟胺，在强碱和铜催化剂的存在下与硝基芳烃反应，生成氨基硝基芳烃，且产率良好。相对于硝基组，发生邻位或对位氨基化反应，在某些情况下，邻位氨基化产物优先获得。对于3-取代的硝基苯，其中取代基带有孤对电子，氨基化优先发生在2位，生成空间位阻最大的3c–f、14和22g。
• Benzo[A] [phenazin-11-carboxamide derivatives and their use as joint inhibitors of topomerase I and II
  申请人：——

  公开号：US20030139409A1

  公开（公告）日：2003-07-24

  A compound which is a benzo[a]phenazine-11-carboxamide derivative of formula (I) wherein each of R 1 to R 4 , which are the same or different, is selected from hydrogen, halogen, hydroxyl, C 1 -C 6 alkoxy which is unsubstituted or substituted, heteroaryloxy, C 1 -C 6 alkyl which is unsubstituted or substituted, nitro, cyano, azido, amidoxime, CO 2 R 10 , CON(R 12 ) 2 , OCON(R 12 ), SR 10 , SOR 11 , SO 2 (R 11 ), SO 2 N(R 12 ) 2 , N(R 12 ) 2 , NR 10 SO 2 R 11 , N(SO 2 R 11 ) 2 NR 10 (CH 2 ) n CN, NR 10 COR 11 , OCOR 11 or COR 10 ; each of R 5 to R 7 , which are the same or different, is selected from hydrogen, halogen, hydroxy, C 1 -C 6 alkoxy, C 1 -C 6 alkyl, SR 10 and N(R 12 ) 2 ; Q is C 1 -C 6 alkylene which is unsubstituted or substituted by (i) C 1 -C 6 alkyl which is unsubstituted or substituted, (ii) hydroxy, provided that the hydroxy group is not, to either of the N atoms adjacent to Q in formula (I), (iii) CO 2 R 10 , or (iv) CON(R 12 ); R 1 and R 9 , which are the same or different, are each hydrogen or C 1 -C 6 alkyl, or R 8 and R 9 together with the nitrogen atom to which they are attached form a saturated 5- or 6-membered N-containing heterocyclic ring which may include one additional heteroatom selected from O, N and S, or one of R 8 and R 9 is an alkylene chain optionally interrupted by O, N or S, which is attached to a carbon atom on the alkylene chain represented by Q to complete a saturated 5- or 6-membered N-containing heterocyclic ring as defined above; or a pharmaceutically acceptable salt thereof; with the proviso that at least one R 1 to R 4 is other than hydrogen. These compounds are inhibitors of topoisomerase I and/or topoisomerase II and can be used to treat tumours, including tumours which express MDR.

  一种化合物，是一种公式（I）的苯并[a]菲啉-11-甲酰胺衍生物，其中R1至R4中的每一个，它们相同或不同，被选择为氢、卤素、羟基、未取代或取代的C1-C6烷氧基、杂环氧基、未取代或取代的C1-C6烷基、硝基、氰基、叠氮基、酰肼基、CO2R10、CON(R12)2、OCON(R12)、SR10、SOR11、SO2(R11)、SO2N(R12)2、N(R12)2、NR10SO2R11、N(SO2R11)2NR10(CH2)nCN、NR10COR11、OCOR11或COR10；R5至R7中的每一个，它们相同或不同，被选择为氢、卤素、羟基、C1-C6烷氧基、C1-C6烷基、SR10和N(R12)2；Q是未取代或取代的C1-C6烷基，其被（i）未取代或取代的C1-C6烷基，（ii）羟基、前提是羟基不是在公式（I）中与Q相邻的任一N原子，（iii）CO2R10，或（iv）CON(R12)所取代；R1和R9，它们相同或不同，分别是氢或C1-C6烷基，或R8和R9连同它们连接到的氮原子形成饱和的5-或6-成员N-含杂环戊或六元环，可能包括一个额外的由O、N和S中选择的杂原子，或R8和R9中的一个是由O、N或S随机中断的烷基链，它连接到由Q表示的烷基链上的碳原子，以完成上述定义的饱和的5-或6-成员N-含杂环戊或六元环；或其药学上可接受的盐；但至少一个R1到R4不是氢。这些化合物是拓扑异构酶I和/或拓扑异构酶II的抑制剂，可用于治疗肿瘤，包括表达MDR的肿瘤。
• [EN] BENZO[A]PHENAZIN-11-CARBOXAMIDE DERIVATIVES AND THEIR USE AS JOINT INHIBITORS OF TOPOMERASE I AND II<br/>[FR] DERIVES DE BENZO[A]PHENAZINE-11-CARBOXAMIDE ET LEUR UTILISATION COMME INHIBITEURS COMMUNS DE LA TOPOMERASE I ET II
  申请人：XENOVA LTD

  公开号：WO2001046157A1

  公开（公告）日：2001-06-28

  A compound which is a benzo[a]phenazine-11-carboxamide derivative of formula (I) wherein each of R1 to R4, which are the same or different, is selected from hydrogen, halogen, hydroxyl, C¿1?-C6 alkoxy which is unsubstituted or substituted, heteroaryloxy, C1-C6 alkyl which is unsubstituted or substituted, nitro, cyano, azido, amidoxime, CO2R?10, CON(R12)¿2, OCON(R?12), SR10, SOR11, SO¿2(R11), SO2N(R12)2, N(R12)2, NR10SO2R11, N(SO¿2R?11)2NR10(CH2)nCN, NR?10COR11, OCOR11 or COR10¿; each of R5 to R7, which are the same or different, is selected from hydrogen, halogen, hydroxy, C¿1?-C6 alkoxy, C1-C6 alkyl, SR?10¿ and N(R12)2; Q is C1-C6 alkylene which is unsubstituted or substituted by (i) C1-C6 alkyl which is unsubstituted or substituted, (ii) hydroxy, provided that the hydroxy group is not α to either of the N atoms adjacent to Q in formula (I), (iii) CO2R10, or (iv) CON(R?12); R8 and R9¿, which are the same or different, are each hydrogen or C¿1?-C6 alkyl, or R?8 and R9¿ together with the nitrogen atom to which they are attached form a saturated 5- or 6-membered N-containing heterocyclic ring which may include one additional heteroatom selected from O, N and S, or one of R?8 and R9¿ is an alkylene chain optionally interrupted by O, N or S, which is attached to a carbon atom on the alkylene chain represented by Q to complete a saturated 5- or 6-membered N-containing heterocyclic ring as defined above; or a pharmaceutically acceptable salt thereof; with the proviso that at least one R1 to R4 is other than hydrogen. These compounds are inhibitors of topoisomerase I and/or topoisomerase II and can be used to treat tumours, including tumours which express MDR.

  化合物是公式（I）的苯并[a]菲噻唑-11-羧酰胺衍生物，其中R1至R4中的每一个，相同或不同，从氢，卤素，羟基，未取代或取代的C1-C6烷氧基，杂环氧基，未取代或取代的C1-C6烷基，硝基，氰基，偶氮基，酰肟基，CO2R10，CON（R12）2，OCON（R12），SR10，SOR11，SO2（R11），SO2N（R12）2，N（R12）2，NR10SO2R11，N（SO2R11）2NR10（CH2）nCN，NR10COR11，OCOR11或COR10中选择；R5至R7中的每一个，相同或不同，从氢，卤素，羟基，C1-C6烷氧基，C1-C6烷基，SR10和N（R12）2中选择；Q是未取代或取代的C1-C6烷基，由（i）未取代或取代的C1-C6烷基，（ii）羟基，前提是羟基不是在公式（I）中与Q相邻的任何一个氮原子的α位上，（iii）CO2R10或（iv）CON（R12）取代的；R8和R9'，相同或不同，均为氢或C1-C6烷基，或R8和R9'与它们连接的氮原子共同形成饱和的5-或6-成员N-含杂环，该杂环可以包括从O，N和S中选择的一个额外的杂原子，或R8和R9'中的一个是由O，N或S间断的烷基链，该烷基链连接到由Q表示的烷基链上的碳原子以形成上述定义的饱和的5-或6-成员N-含杂环；或其药学上可接受的盐；但至少有一个R1至R4不是氢。这些化合物是拓扑异构酶I和/或拓扑异构酶II的抑制剂，可用于治疗肿瘤，包括表达MDR的肿瘤。
• Pharmaceutical compounds
  申请人：Milton John

  公开号：US20050143383A1

  公开（公告）日：2005-06-30

  A compound which is a benzo[a]phenazine-11-carboxamide derivative of formula (I) wherein each of R 1 to R 4 , which are the same or different, is selected from hydrogen, halogen, hydroxyl, C 1 -C 6 alkoxy which is unsubstituted or substituted, heteroaryloxy, C 1 -C 6 alkyl which is unsubstituted or substituted, nitro, cyano, azido, amidoxime, CO 2 R 10 , CON(R 12 ) 2 , OCON(R 12 ), SR 10 , SOR 11 , SO 2 R 11 , SO 2 N(R 12 ) 2 , N(R 2 ) 2 , NR 10 SO 2 R 11 , N(SO 2 R 11 ) 2 NR 10 (CH 2 ) n CN, NR 10 COR 11 , OCOR 11 or COR 10 ; each of R 5 to R 7 , which are the same or different, is selected from hydrogen, halogen, hydroxy, C 1 -C 6 alkoxy, C 1 -C 6 alkyl, SR 10 and N(R 12 ) 2 ; Q is C 1 -C 6 alkylene which is unsubstituted or substituted by (i) C 1 -C 6 alkyl which is unsubstituted or substituted, (II) hydroxy, provided that the hydroxy group is not α to either of the N atoms adjacent to Q in formula (I), (iii) CO 2 R 10 , or (iv) CON(R 12 ); R 8 and R 9 , which are the same or different, are each hydrogen or C 1 -C 6 alkyl, or R 8 and R 9 together with the nitrogen atom to which they are attached form a saturated 5- or 6-membered N-containing heterocyclic ring which may include one additional heteroatom selected from O, N and S, or one of R 8 and R 9 is an alkylene chain optionally interrupted by O, N or S, which is attached to a carbon atom on the alkylene chain represented by Q to complete a saturated 5- or 6-membered N-containing heterocyclic ring as defined above; R 10 is hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, benzyl or phenyl; R 11 is C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, benzyl or phenyl; each R 12 , which are the same or different, is hydrogen, C 1 -C 6 alkyl cycloalkyl, benzyl or phenyl, or the two R 12 groups form, together with the nitrogen atom to which they are attached a 5- or 6-membered saturated N-containing heterocyclic ring which may include 1 or 2 additional heteroatoms selected from O, N and S; and n is 1, 2 or 3; or a pharmaceutically acceptable salt thereof; with the proviso that at least one of R 1 to R 4 is other than hydrogen. These compounds are inhibitors of topoisomerase I and/or topoisomerase II and can be used to treat tumours, including tumours which express MDR.

  化合物为公式（I）的苯并[a]菲噻嗪-11-羧酰胺衍生物，其中R1至R4中的每个基团，相同或不同，选自氢、卤素、羟基、未取代或取代的C1-C6烷氧基、杂环氧基、未取代或取代的C1-C6烷基、硝基、氰基、叠氮基、酰肟基、CO2R10、CON(R12)2、OCON(R12)、SR10、SOR11、SO2R11、SO2N(R12)2、N(R2)2、NR10SO2R11、N(SO2R11)2NR10(CH2)nCN、NR10COR11、OCOR11或COR10；R5至R7中的每个基团，相同或不同，选自氢、卤素、羟基、C1-C6烷氧基、C1-C6烷基、SR10和N(R12)2；Q为未取代或取代的C1-C6烷基，可以由(i)未取代或取代的C1-C6烷基，(ii)羟基，但羟基不在公式（I）中与相邻的N原子之一相邻，(iii)CO2R10，或(iv)CON(R12)取代；R8和R9，相同或不同，均为氢或C1-C6烷基，或者R8和R9与它们附着的氮原子一起形成饱和的5-或6-成员N-含杂环，其中可以包括来自O、N和S的一个额外的杂原子，或者R8和R9是由O、N或S随意中断的烷基链，它附着在由Q表示的烷基链上的碳原子上，以完成上述定义的饱和的5-或6-成员N-含杂环；R10为氢、C1-C6烷基、C3-C6环烷基、苄基或苯基；R11为C1-C6烷基、C3-C6环烷基、苄基或苯基；每个R12，相同或不同，为氢、C1-C6烷基环烷基、苄基或苯基，或两个R12基团与它们附着的氮原子一起形成一个5-或6-成员饱和N-含杂环，其中可以包括1或2个来自O、N和S的额外杂原子；n为1、2或3；或其药学上可接受的盐；但至少有一个R1至R4不是氢。这些化合物是拓扑异构酶I和/或拓扑异构酶II的抑制剂，可用于治疗肿瘤，包括表达MDR的肿瘤。
• Benzazole derivatives, compositions, and methods of use as beta-secretase inhibitors
  申请人：Mjalli M.M. Adnan

  公开号：US20060223849A1

  公开（公告）日：2006-10-05

  The present invention is directed to benzazole compounds that inhibit β-site amyloid precursor protein-cleaving enzyme (BACE) and that may be useful in the treatment or prevention of diseases in which BACE is involved, such as Alzheimer's disease. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which BACE is involved.

  本发明涉及一种抑制β-淀粉样前体蛋白剪切酶（BACE）的苯并咪唑化合物，该化合物可用于治疗或预防BACE参与的疾病，如阿尔茨海默病。本发明还涉及包含这些化合物的药物组合物以及在预防或治疗BACE参与的这些疾病中使用这些化合物和组合物的用途。