9-[2-[[(2S,4S)-4-(3-chlorophenyl)-2-oxo-1,3,2lambda5-dioxaphosphinan-2-yl]methoxy]ethyl]purin-6-amine | 625095-66-1

• 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: 9-[2-[[(2S,4S)-4-(3-chlorophenyl)-2-oxo-1,3,2lambda5-dioxaphosphinan-2-yl]methoxy]ethyl]purin-6-amine
• 英文别名: 9-[2-[[(2S,4S)-4-(3-chlorophenyl)-2-oxo-1,3,2λ5-dioxaphosphinan-2-yl]methoxy]ethyl]purin-6-amine
• CAS: 625095-66-1
• 化学式: C₁₇H₁₉ClN₅O₄P
• 分子量: 423.796
• InChiKey: GWNHAOBXDGOXRR-POXGOYDTSA-N

物化性质

• 沸点：
  649.7±65.0 °C(Predicted)
• 密度：
  1.62±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  28
• 可旋转键数：
  6
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  114
• 氢给体数：
  1
• 氢受体数：
  8

ADMET

代谢

Pradefovir 已知的人类代谢物包括 PMEA。

Pradefovir has known human metabolites that include PMEA.

来源:NORMAN Suspect List Exchange

反应信息

• 作为反应物：
  描述：

  9-[2-[[(2S,4S)-4-(3-chlorophenyl)-2-oxo-1,3,2lambda5-dioxaphosphinan-2-yl]methoxy]ethyl]purin-6-amine 、 甲烷磺酸 、 帕拉德福韦 以 乙醇 为溶剂， 反应 5.0h， 生成 9-[2-[[(2S,4S)-4-(3-chlorophenyl)-2-oxo-1,3,2lambda5-dioxaphosphinan-2-yl]methoxy]ethyl]purin-6-amine;methanesulfonic acid 、 甲磺酸帕拉德福韦
  参考文献：
  名称：

  [EN] LEWIS ACID MEDIATED SYNTHESIS OF CYCLIC ESTERS
  [FR] SYNTHESE D'ESTERS CYCLIQUES INDUITE PAR L'ACIDE DE LEWIS

  摘要：

  描述了从1,3-二醇合成环磷酸二酯的方法，其中通过在Lewis酸存在下反应手性1,3-二醇和活化磷酸制得环磷酸二酯。

  公开号：

  WO2005123729A1
• 作为产物：
  描述：

  9-{2-[2,4-trans(R)-(-)-4-(3-Chlorophenyl)-2-oxo-1,3,2-dioxaphosphorinan-2-yl]methoxyethyl}adenine 在 溶剂黄146 作用下， 以 乙醇 为溶剂， 反应 8.0h， 生成 9-[2-[[(2S,4S)-4-(3-chlorophenyl)-2-oxo-1,3,2lambda5-dioxaphosphinan-2-yl]methoxy]ethyl]purin-6-amine
  参考文献：
  名称：

  Novel phosphonic acid based prodrugs of PMEA and its analogues

  摘要：

  公式I的前药、它们的用途、它们的中间体以及它们的制造方法被描述：其中：M和V相对于彼此是顺式的，MPO3H2是从以下组中选择的膦酸，包括9-(2-膦甲氧基乙基)腺嘌呤，(R)-9-(2-膦甲氧基丙基)腺嘌呤，9-(2-膦甲氧基乙基)鸟嘌呤，9-(2-膦甲氧基乙氧基)腺嘌呤，9-(2-膦甲氧基乙基)-2,6-二氨基嘌呤，(S)-1-(3-羟基-2-膦甲氧基丙基)胞嘧啶，(S)-9-(3-羟基-2-膦甲氧基丙基)腺嘌呤，9-(3-羟基-2-膦甲氧基丙基)鸟嘌呤，以及(S)-9-(3-氟-2-膦甲氧基丙基)腺嘌呤；V从以下组中选择，包括苯基，2-吡啶基，3-吡啶基，4-吡啶基，2-呋喃基，3-呋喃基，2-噻吩基和3-噻吩基，所有这些基可选地被1-3个来自F、Cl、Br、C1-C3烷基、CF3和OR6的基替代；R6从C1-C3烷基和CF3的组中选择；以及其药学上可接受的盐。

  公开号：

  US20030229225A1

文献信息

• Design, Synthesis, and Characterization of a Series of Cytochrome P₄₅₀ 3A-Activated Prodrugs (HepDirect Prodrugs) Useful for Targeting Phosph(on)ate-Based Drugs to the Liver^§
  作者：Mark D. Erion、K. Raja Reddy、Serge H. Boyer、Michael C. Matelich、Jorge Gomez-Galeno、Robert H. Lemus、Bheemarao G. Ugarkar、Timothy J. Colby、Jürgen Schanzer、Paul D. van Poelje

  DOI：10.1021/ja031818y

  日期：2004.4.28

  A new class of phosphate and phosphonate prodrugs, called HepDirect prodrugs, is described that combines properties of rapid liver cleavage with high plasma and tissue stability to achieve increased drug levels in the liver. The prodrugs are substituted cyclic 1,3-propanyl esters designed to undergo an oxidative cleavage reaction catalyzed by a cytochrome P(450) (CYP) expressed predominantly in the

  描述了一类新的磷酸盐和膦酸盐前药，称为 HepDirect 前药，它结合了快速肝脏裂解的特性与高血浆和组织稳定性，以实现肝脏中药物水平的增加。前药是取代的环状 1,3-丙酸酯，设计用于经历由主要在肝脏中表达的细胞色素 P(450) (CYP) 催化的氧化裂解反应。本文报道了在 C4 上含有芳基取代基的前药系列的发现及其用于将基于核苷的药物递送至肝脏的用途。阿糖腺苷、拉米夫定 (3TC) 和阿糖胞苷的 5'-单磷酸酯前药以及膦酸阿德福韦在暴露于肝脏匀浆后显示出裂解，并在血液和其他组织中表现出良好的稳定性。前药裂解需要在顺式构型中存在芳基，但相对独立于 C4 的核苷和绝对立体化学。机理研究表明，前药裂解通过初始 CYP3A 催化氧化为中间体开环一元酸，随后通过 β-消除反应转化为磷酸（on）酸酯和芳基乙烯基酮。在原代大鼠肝细胞和正常大鼠中比较 3TC 和相应的 HepDirect 前药的研究表
• Process for preparation of cyclic prodrugs of PMEA and PMPA
  申请人：——

  公开号：US20030225277A1

  公开（公告）日：2003-12-04

  The method of preparing compounds of Formula I is described: 1 wherein: M and V are cis to one another and MPO 3 H 2 is a phosphonic acid selected from the group consisting of 9-(2-phosphonylmethoxyethyl)adenine, and (R)-9-(2-phosphonylmethoxypropyl)adenine; wherein V is phenyl, optionally substituted with 1-2 substituents selected from a group consisting of fluoro, chloro, and bromo; comprising: coupling a chiral 1-phenylpropane-1,3-diol, wherein the phenyl may be optionally substituted, with MPOCl 2 or an N-6 substituted analogue thereof. Additionally, methods and salt forms are described that enable isolation and purification of the desired isomer.

  描述了制备化合物I的方法：其中：M和V相互顺式，MPO3H2是从9-(2-磷酸甲氧基乙基)腺嘌呤和(R)-9-(2-磷酸甲氧基丙基)腺嘌呤组成的磷酸；其中V是苯基，可选地取代1-2个从氟、氯和溴组成的取代基；包括：将手性1-苯基丙烷-1,3-二醇（其中苯基可选地取代）与MPOCl2或其N-6取代类似物偶联。此外，还描述了使所需异构体隔离和纯化的方法和盐形式。
• Pradefovir: A Prodrug That Targets Adefovir to the Liver for the Treatment of Hepatitis B
  作者：K. Raja Reddy、Michael C. Matelich、Bheemarao G. Ugarkar、Jorge E. Gómez-Galeno、Jay DaRe、Kristin Ollis、Zhili Sun、William Craigo、Timothy J. Colby、James M. Fujitaki、Serge H. Boyer、Paul D. van Poelje、Mark D. Erion

  DOI：10.1021/jm7012216

  日期：2008.2.1

  Adefovir dipivoxil, a marketed drug for the treatment of hepatitis B, is dosed at submaximally efficacious doses because of renal toxicity. In an effort to improve the therapeutic index of adefovir, 1-aryl-1,3-propanyl prodrugs were synthesized with the rationale that this selectively liver-activated prodrug class would enhance liver levels of the active metabolite adefovir diphosphate (ADV-DP) and/or decrease kidney exposure. The lead prodrug (14, MB06866, pradefovir), identified from a variety of in vitro and in vivo assays, exhibited good oral bioavailability (F = 42%, mesylate salt, rat) and rate of prodrug conversion to ADV-DP. Tissue distribution studies in the rat using radiolabeled materials showed that cyclic 1-aryl-1,3-propanyl prodrugs enhance the delivery of adefovir and its metabolites to the liver, with pradefovir exhibiting a 12-fold improvement in the liver/kidney ratio over adefovir dipivoxil.
• LEWIS ACID MEDIATED SYNTHESIS OF CYCLIC ESTERS
  申请人：Metabasis Therapeutics, Inc.

  公开号：EP1753762B1

  公开（公告）日：2014-03-19
• Process for Preparation of Cyclic Prodrugs of PMEA and PMPA
  申请人：KOPCHO J. Joseph

  公开号：US20070203339A1

  公开（公告）日：2007-08-30

  The method of preparing compounds of Formula I is described: wherein: M and V are cis to one another and MPO 3 H 2 is a phosphonic acid selected from the group consisting of 9-(2-phosphonylmethoxyethyl)adenine, and (R)-9-(2-phosphonylmethoxypropyl)adenine; wherein V is phenyl, optionally substituted with 1-2 substituents selected from a group consisting of fluoro, chloro, and bromo; comprising: coupling a chiral 1-phenylpropane-1,3-diol, wherein the phenyl may be optionally substituted, with MPOCl 2 or an N-6 substituted analogue thereof. Additionally, methods and salt forms are described that enable isolation and purification of the desired isomer.