8-Oxo-benzylguanine

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并嘧啶类
• 英文名称: 8-Oxo-benzylguanine
• 英文别名: 2-amino-6-(benzyloxy)-7,9-dihydro-8H-purin-8-one；O⁶-benzyl-7,8-dihydro-8-oxoguanine；8-oxo-O⁶-benzylguanine；O⁶-benzyl-8-oxoguanine；8-oxo-O6-benzylguanine；8-oxobenzylguanine；o6-Benzyl-8-oxoguanine；2-amino-6-phenylmethoxy-7,9-dihydropurin-8-one
• 化学式: C₁₂H₁₁N₅O₂
• 分子量: 257.252
• InChiKey: VPMJBCMAJPZWIC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  102
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  8-Oxo-benzylguanine 在 溶剂黄146 、 sodium nitrite 作用下， 以 丙酮 为溶剂， 反应 3.0h， 以29%的产率得到O⁶-benzyluric acid
  参考文献：
  名称：

  8-取代的O6-苄基鸟嘌呤，取代的6（4）-（苄氧基）嘧啶和相关衍生物作为人O6-烷基鸟嘌呤-DNA烷基转移酶的灭活剂。

  摘要：

  测试了几种8-取代的O6-苄基鸟嘌呤，2-和/或8-取代的6-（苄氧基）嘌呤，取代的6（4）-（苄氧基）嘧啶和6-（苄氧基）-s-三嗪的能力。使人类DNA修复蛋白O6-烷基鸟嘌呤-DNA烷基转移酶（AGT，烷基转移酶）失活。已鉴定出两种类型的化合物在使人HT29结肠肿瘤细胞提取物中的AGT失活方面比O6-苄基鸟嘌呤（原型低分子量灭活剂）明显更有效。它们是在8位带有吸电子基团的8-取代的O6-苄基鸟嘌呤（例如8-氮杂-O6-苄基鸟嘌呤和O6-苄基-8-溴鸟嘌呤）和5-取代的2,4-二氨基-6-（苄氧基）在5位带有吸电子基团的嘧啶（例如2,4-二氨基-6-（苄氧基）-5-亚硝基和2，4-二氨基-6-（苄氧基）-5-硝基嘧啶）。在完整的HT29结肠肿瘤细胞中，后者的衍生物在灭活AGT方面比O6-苄基鸟嘌呤更有效。如果这些类型的嘌呤和嘧啶没有表现出不希望的毒性，则它们可以优于O6-苄基鸟嘌呤作为用

  DOI：

  10.1021/jm00002a018
• 作为产物：
  描述：

  O-6-苄基鸟嘌呤 在 human aldehyde oxidase isoform 1 作用下， 以 aq. buffer 为溶剂， 反应 0.08h， 生成 8-Oxo-benzylguanine
  参考文献：
  名称：

  Inhibitory effects of drugs on the metabolic activity of mouse and human aldehyde oxidases and influence on drug–drug interactions

  摘要：

  As aldehyde oxidase (AOX) plays an emerging role in drug metabolism, understanding its significance for drug-drug interactions (DDI) is important. Therefore, we tested 10 compounds for species-specific and substrate-dependent differences in the inhibitory effect of AOX activity using genetically engineered HEK293 cells over- expressing human AOX1, mouse AOX1 or mouse AOX3 The IC50 values of 10 potential inhibitors of the three AOX enzymes were determined using phthalazine and O-6-benzylguanine as substrates 17 beta-Estradiol, mena dione, norharmane and raloxifene exhibited marked differences in inhibitory effects between the human and mouse AOX isoforms when the phthalazine substrate was used. Some of the compounds tested exhibited substrate dependent differences m their inhibitory effects. Docking simulations with human AOX1 and mouse AOX3 were conducted for six representative inhibitors. The rank order of the minimum binding energy reflected the order of the corresponding IC50 values. We also evaluated the potential DDI between an AOX substrate (O-6-benzylguanine) and an inhibitor (hydralazine) using chimeric mice with humanized livers. Pretreatment of hydralazine increased the maximum plasma concentration (C-max) and the area under the plasma concentration- time curve (AUC(0-24)) of O-6-benzylguanine compared to single administration. Our in vitro data indicate species-specific and substrate-dependent differences in the inhibitory effects on AOX activity. Our in vivo data demon strate the existence of a DDI which may be of relevance in the clinical context.

  DOI：

  10.1016/j.bcp.2018.04.017

文献信息

• Triazolopyrimidines identified as reversible myeloperoxidase inhibitors
  作者：Franck Duclos、Lynn M. Abell、David G. Harden、Kristen Pike、Kimberly Nowak、Gregory A. Locke、Gerald J. Duke、Xiaoqin Liu、Gayani Fernando、Scott A. Shaw、Benjamin P. Vokits、Nicholas R. Wurtz、Andrew Viet、Meriah N. Valente、Sylwia Stachura、Paul Sleph、Javed A. Khan、Ji Gao、Ashok R. Dongre、Lei Zhao、Ruth R. Wexler、David A. Gordon、Ellen K. Kick

  DOI：10.1039/c7md00268h

  日期：——

  Myeloperoxidase, a mammalian peroxidase involved in the immune system as an anti-microbial first responder, can produce hypochlorous acid in response to invading pathogens. Myeloperoxidase has been implicated in several chronic pathological diseases due to the chronic production of hypochlorous acid, as well as other reactive radical species. A high throughput screen and triaging protocol was developed

  髓过氧化物酶是一种哺乳动物过氧化物酶，作为抗微生物第一反应者参与免疫系统，可以产生次氯酸以应对入侵的病原体。由于次氯酸以及其他活性自由基的长期产生，髓过氧化物酶与多种慢性病理性疾病有关。开发了高通量筛选和分类方案来鉴定髓过氧化物酶的可逆抑制剂，以用于治疗动脉粥样硬化等慢性疾病。描述了可逆髓过氧化物酶抑制剂 7-(benzyloxy)-3 H- [1,2,3]triazolo[4,5- d ]pyrimidin-5-amine的鉴定和表征。
• Substituted O6-benzyl-8-aza-guanines
  申请人：The Government of the United States of America, Department of Health and Human Services

  公开号：US20020013299A1

  公开（公告）日：2002-01-31

  The present invention provides AGT inactivating compounds such as substituted O 6 -benzylguanines of the formula 1 7- or 9-substituted 8-aza-O 6 -benzylguanines, 7,8-disubstituted O 6 -benzylguanines, 7,9-disubstituted O 6 -benzylguanines, 4(6)-substituted 2-amino-5-nitro-6 (4) -benzyloxypyrimidines, and 4 (6) -substituted 2-amino-5-nitroso-6(4)-benzyloxypyrimidines, as well as pharmaceutical compositions comprising such compounds along with a pharmaceutically acceptable carrier. The present invention further provides a method of enhancing the chemotherapeutic treatment of tumor cells in a mammal with an antineoplastic alkylating agent, which causes cytotoxic lesions at the O 6 -position of guanine, by administering to a mammal an effective amount of one of the aforesaid compounds, 2,4-diamino-6-benzyloxy-s-triazine, 5-substituted 2,4-diamino-6-benzyloxypyrimidines, or 8-aza-O 6 -benzylguanine, and administering to the mammal an effective amount of an antineoplastic alkylating agent which causes cytotoxic lesions at the Deposition of guanine.

  本发明提供了AGT失活化合物，例如公式17-或9-取代的8-aza-O6-苄基鸟嘌呤、7,8-二取代的O6-苄基鸟嘌呤、7,9-二取代的O6-苄基鸟嘌呤、4（6）-取代的2-氨基-5-硝基-6（4）-苄氧嘧啶和4（6）-取代的2-氨基-5-亚硝基-6（4）-苄氧嘧啶，以及包含这些化合物和药用载体的制药组合物。本发明还提供了一种增强抗肿瘤烷化剂治疗哺乳动物肿瘤细胞的方法，该方法通过向哺乳动物投与上述化合物、2,4-二氨基-6-苄氧基-s-三嗪、5-取代的2,4-二氨基-6-苄氧基嘧啶或8-aza-O6-苄基鸟嘌呤的有效量，并向哺乳动物投与一种在鸟嘌呤O6位引起细胞毒性损伤的抗肿瘤烷化剂的有效量。
• Substituted 06-benzylguanines and 6(4)-benzyloxypyrimidines
  申请人：The United States of America as represented by the Department of Health

  公开号：US05525606A1

  公开（公告）日：1996-06-11

  The present invention provides 8-substituted O.sup.6 -benzylguanines of the formula ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are as defined in the specification, and 4(6)-substituted 2-amino-5-nitro-6(4)-benzyloxypyrimidine, and 4(6)-substituted 2-amino-5-nitroso-6(4)-benzyloxypyrimidine derivatives which have been found to be effective AGT inactivators, as well as pharmaceutical compositions comprising such derivatives along with a pharmaceutically acceptable carrier. The present invention further provides a method of enhancing the chemotherapeutic treatment of tumor cells in a mammal with an antineoplastic alkylating agent which causes cytotoxic lesions at the O.sup.6 -position of guanine, by administering to a mammal an effective amount of one of the aforesaid derivatives, 2,4-diamino-6-benzyloxy-s-triazine, 5-substituted 2,4-diamino-6-benzyloxypyrimidines, or 8-aza-O.sup.6 -benzylguanine, and administering to the mammal an effective amount of an antineoplastic alkylating agent which causes cytotoxic lesions at the O.sup.6 -position of guanine.

  本发明提供了式子如下的8-取代O.sup.6-苄基鸟嘌呤：##STR1##其中R.sub.1，R.sub.2和R.sub.3如规范中定义的，以及4（6）-取代的2-氨基-5-硝基-6（4）-苄氧基嘧啶，以及已发现有效的AGT失活剂的4（6）-取代2-氨基-5-亚硝基-6（4）-苄氧基嘧啶衍生物，以及包含这些衍生物和药用可接受载体的制药组合物。本发明还提供了一种增强哺乳动物体内肿瘤细胞化疗治疗的方法，该方法使用一种抗肿瘤烷基化剂，该烷基化剂在鸟嘌呤的O.sup.6-位置引起细胞毒性损伤，通过向哺乳动物体内投与上述衍生物，2,4-二氨基-6-苄氧基-s-三嗪，5-取代的2,4-二氨基-6-苄氧基嘧啶，或8-氮杂-O.sup.6-苄基鸟嘌呤的有效量，并向哺乳动物体内投与引起鸟嘌呤的O.sup.6-位置细胞毒性损伤的抗肿瘤烷基化剂的有效量。
• Substituted benzyloxypyrimidines and their inactivation of O.sup.6
  申请人：The United States of America as represented by the Department of Health

  公开号：US05753668A1

  公开（公告）日：1998-05-19

  The present invention provides certain novel nitro or nitroso substituted benzyloxy pyrimidines useful as AGT inactivators. An example of such a pyrimidine is a compound of the formula ##STR1## wherein R.sub.1, is NO.sub.2 or NO, and R.sub.2 is hydrogen, halo, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 hydroxyalkyl, thiol, C.sub.1 -C.sub.4 alkythio, trifluoromethoxy, oxymethanesulfonyl, oxytrifluoromethanesulfonyl, or C.sub.1 -C.sub.4 oxyacyl. The present invention further provides pharmaceutical compositions comprising these compounds, and a method of enhancing the chemotherapeutic treatment of tumor cells in a mammal with an antineoplastic alkylating agent which causes cytotoxic lesions at the O.sup.6 -position of guanine.

  本发明提供了某些新型的硝基或亚硝基取代的苄氧基嘧啶，可用作AGT失活剂。这样的嘧啶的一个例子是式子##STR1##中的化合物，其中R.sub.1是NO.sub.2或NO，R.sub.2是氢、卤素、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4羟基烷基、硫醇、C.sub.1-C.sub.4烷硫基、三氟甲氧基、氧甲烷磺酰基、氧三氟甲烷磺酰基或C.sub.1-C.sub.4氧酰基。本发明还提供了包含这些化合物的药物组合物，以及一种增强哺乳动物中肿瘤细胞的化疗治疗的方法，该方法使用一种抗肿瘤烷基化剂，在鸟嘌呤的O.sup.6位引起细胞毒性损伤。
• Pharmaceutical composition comprising 2,4-diamino-6-benzyloxy-s-triazine and inactivation of O6-alkylguanine-DNA-alkyltransferase
  申请人：The United States of America as represented by the Department of Health and Human Services

  公开号：US06303604B1

  公开（公告）日：2001-10-16

  The present invention provides 8-substituted O6-benzylguanine, 4(6)-substituted 2-amino-5-nitro-6(4)-benzyloxypyrimidine, and 4(6)-substituted 2-amino-5-nitroso-6(4)-benzyloxypyrimidine derivatives which have been found to be effective AGT inactivators, as well as pharmaceutical compositions comprising such derivatives along with a pharmaceutically acceptable carrier. The present invention further provides a method of enhancing the chemotherapeutic treatment of tumor cells in a mammal with an antineoplastic alkylating agent which causes cytotoxic lesions at the O6-position of quanine, by administering to a mammal an effective amount of one of the aforesaid derivatives, 2,4-diamino-6-benzyloxy-s-triazine, 5-substituted 2,4-diamino-6-benzyloxypyrimidines, or 8-aza-O6-benzylguanine, and administering to the mammal an effective amount of an antineoplastic alkylating agent which causes cytotoxic lesions at the O6-position of guanine.

  本发明提供了8-取代的O6-苄基鸟嘌呤，4(6)-取代的2-氨基-5-硝基-6(4)-苄氧基嘧啶和4(6)-取代的2-氨基-5-亚硝基-6(4)-苄氧基嘧啶衍生物，发现它们是有效的AGT失活剂，以及包含这些衍生物和药学上可接受的载体的制药组合物。本发明还提供了一种增强哺乳动物体内抗肿瘤烷基化剂治疗肿瘤细胞的方法，该烷基化剂在鸟嘌呤的O6位引起细胞毒性损伤，通过向哺乳动物体内投与上述衍生物、2,4-二氨基-6-苄氧基-s-三嗪、5-取代的2,4-二氨基-6-苄氧基嘧啶或8-氮杂-O6-苄基鸟嘌呤的有效量，并向哺乳动物体内投与一种在鸟嘌呤的O6位引起细胞毒性损伤的抗肿瘤烷基化剂的有效量。