5-[(2,2-dimethyl-1,1-diphenyl-1-silapropoxy)methyl]-5-[(phenylmethoxy)methyl]-3,4,5-trihydrofuran-2-one | 663601-04-5

• 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: 5-[(2,2-dimethyl-1,1-diphenyl-1-silapropoxy)methyl]-5-[(phenylmethoxy)methyl]-3,4,5-trihydrofuran-2-one
• CAS: 663601-04-5
• 化学式: C₂₉H₃₄O₄Si
• 分子量: 474.672
• InChiKey: UDQQIXAHIFPAAU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.86
• 重原子数：
  34.0
• 可旋转键数：
  9.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.34
• 拓扑面积：
  44.76
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  5-[(2,2-dimethyl-1,1-diphenyl-1-silapropoxy)methyl]-5-[(phenylmethoxy)methyl]-3,4,5-trihydrofuran-2-one 在 吡啶 、 盐酸 、 二氯乙酸 、 4-二甲氨基吡啶 、 sodium chlorite 、 sodium dihydrogenphosphate 、 四丙基高钌酸铵 、 2-甲基-2-丁烯 、 草酰氯 、 dimethyl sulfide borane 、 4 A molecular sieve 、 DOWEX 50WX₈-200 、 potassium tert-butylate 、 四丁基氟化铵 、 三氯化硼 、 sodium hydride 、 二异丁基氢化铝 、 溶剂黄146 、 二甲基亚砜 、 N-甲基吗啉氧化物 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三乙胺 、 N,N'-二环己基碳二亚胺 、 2,3-二氯-5,6-二氰基-1,4-苯醌 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 正庚烷 、 二氯甲烷 、 乙基苯 、 甲苯 、 乙腈 、 叔丁醇 为溶剂， 反应 120.0h， 生成 nonyl 2-[(4Z)-2-(hydroxymethyl)-4-(4-methyl-3-propan-2-ylpentylidene)-5-oxooxolan-2-yl]acetate
  参考文献：
  名称：

  Conformationally Constrained Analogues of Diacylglycerol. 20. The Search for an Elusive Binding Site on Protein Kinase C through Relocation of the Carbonyl Pharmacophore Along the sn-1 Side Chain of 1,2-Diacylglycerol Lactones

  摘要：

  Previous studies with 1,2-diacylglycerol (DAG) lactones, which behave as high-affinity ligands for protein kinase C (PK-C), have established the importance of maintaining intact the pharmacophore triad of two carbonyl moieties (sn-1 and sn-2) and the primary alcohol. In addition, docking studies of DAG-lactones into an empty C1b receptor of PK-Cdelta (as it appears in complex with phorbol 13-O-acetate) have revealed that in either of the two possible binding alternatives (sn-1 or sn-2) only one carbonyl group of the DAG-lactone is involved in binding. Therefore, the unknown receptor for the orphaned carbonyl appears to lie outside the boundaries of this binary complex, possibly residing at the membrane or near the membrane-protein interface. A strategy to locate the optimal location of the unengaged carbonyl was conceived by utilizing a small group of DAG-lactones (1-4) with a highly branched chain adjacent to the sn-2 carbonyl such that sn-2 binding is favored. With these compounds, various locations of the sn-1 carbonyl along the side chain were tested for their binding affinity for PK-C. The results indicate that the location of the side chain sn-1 carbonyl in a DAG-lactone must have perfect mimicry to the sn-1 carbonyl of the parent DAG for it to display high binding affinity. A proposed model from this work is that the missing pharmacophore in the ternary complex, which includes the membrane, is close to the membrane-protein interface.

  DOI：

  10.1021/jm030454h
• 作为产物：
  描述：

  叔丁基二苯基氯硅烷 在 咪唑 、 dimethyl sulfide borane 、 4 A molecular sieve 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 51.42h， 生成 5-[(2,2-dimethyl-1,1-diphenyl-1-silapropoxy)methyl]-5-[(phenylmethoxy)methyl]-3,4,5-trihydrofuran-2-one
  参考文献：
  名称：

  Conformationally Constrained Analogues of Diacylglycerol. 20. The Search for an Elusive Binding Site on Protein Kinase C through Relocation of the Carbonyl Pharmacophore Along the sn-1 Side Chain of 1,2-Diacylglycerol Lactones

  摘要：

  Previous studies with 1,2-diacylglycerol (DAG) lactones, which behave as high-affinity ligands for protein kinase C (PK-C), have established the importance of maintaining intact the pharmacophore triad of two carbonyl moieties (sn-1 and sn-2) and the primary alcohol. In addition, docking studies of DAG-lactones into an empty C1b receptor of PK-Cdelta (as it appears in complex with phorbol 13-O-acetate) have revealed that in either of the two possible binding alternatives (sn-1 or sn-2) only one carbonyl group of the DAG-lactone is involved in binding. Therefore, the unknown receptor for the orphaned carbonyl appears to lie outside the boundaries of this binary complex, possibly residing at the membrane or near the membrane-protein interface. A strategy to locate the optimal location of the unengaged carbonyl was conceived by utilizing a small group of DAG-lactones (1-4) with a highly branched chain adjacent to the sn-2 carbonyl such that sn-2 binding is favored. With these compounds, various locations of the sn-1 carbonyl along the side chain were tested for their binding affinity for PK-C. The results indicate that the location of the side chain sn-1 carbonyl in a DAG-lactone must have perfect mimicry to the sn-1 carbonyl of the parent DAG for it to display high binding affinity. A proposed model from this work is that the missing pharmacophore in the ternary complex, which includes the membrane, is close to the membrane-protein interface.

  DOI：

  10.1021/jm030454h

文献信息

• Synthesis, biological, and biophysical studies of DAG-indololactones designed as selective activators of RasGRP
  作者：Lia C. Garcia、Lucia Gandolfi Donadío、Ella Mann、Sofiya Kolusheva、Noemi Kedei、Nancy E. Lewin、Colin S. Hill、Jessica S. Kelsey、Jing Yang、Timothy E. Esch、Marina Santos、Megan L. Peach、James A. Kelley、Peter M. Blumberg、Raz Jelinek、Victor E. Marquez、Maria J. Comin

  DOI：10.1016/j.bmc.2014.04.024

  日期：2014.6

  The development of selective agents capable of discriminating between protein kinase C (PKC) isoforms and other diacylglycerol (DAG)-responsive C1 domain-containing proteins represents an important challenge. Recent studies have highlighted the role that Ras guanine nucleotide-releasing protein (RasGRP) isoforms play both in immune responses as well as in the development of prostate cancer and melanoma

  开发能够区分蛋白激酶 C (PKC) 亚型和其他二酰基甘油 (DAG) 响应性 C1 结构域蛋白的选择剂是一项重要挑战。最近的研究强调了 Ras 鸟嘌呤核苷酸释放蛋白 (RasGRP) 同种型在免疫反应以及前列腺癌和黑色素瘤发展中的作用，表明选择性配体的发现可能具有潜在的治疗价值。迄今为止，N-甲基取代的吲哚内酯1是相对于 PKC 对 RasGRP 具有最高报告效力和选择性的激动剂。在这里，我们介绍了与1的区域异构体家族（化合物2 – 5) 在吲哚环和内酯部分之间的连接位置不同。研究这些结构变化是为了探索活性复合物（C1 结构域-配体）与细胞膜的相互作用，这被认为是激活含有 DAG 响应 C1 结构域的信号蛋白的选择性的重要因素。与 PKCα 相比，所有化合物都是 RasGRP 的有效选择性激活剂，选择性范围为 6 至 65 倍。然而，母体化合物1明显比任何其他异构体更具选择性。在完整的细胞中，观察到
• Design, Synthesis, and Characterization of Novel <i>sn</i>-1 Heterocyclic DAG-Lactones as PKC Activators
  作者：Eleonora Elhalem、Ana Bellomo、Mariana Cooke、Antonella Scravaglieri、Larry V. Pearce、Megan L. Peach、Lucía Gandolfi Donadío、Marcelo G. Kazanietz、María J. Comin

  DOI：10.1021/acs.jmedchem.1c00739

  日期：2021.8.12

  PKC isozymes. The ester moiety at the sn-1 position, a common feature in this template, is relevant for C1 domain interactions, but it represents a labile group susceptible to endogenous esterases. An interesting challenge involves replacing the ester group of these ligands while still maintaining biological activity. Here, we present the synthesis and functional characterization of novel diacylglycerol-lactones

  DAG-内酯代表了用于设计 PKC 同工酶的有效和选择性 C1 域配体的有用模板。sn -1 位置的酯部分是该模板中的一个共同特征，与 C1 域相互作用相关，但它代表易受内源性酯酶影响的不稳定基团。一个有趣的挑战涉及替换这些配体的酯基，同时仍保持生物活性。在这里，我们介绍了在sn -1 位置含有杂环取代基的新型二酰基甘油-内酯的合成和功能表征。我们的结果表明，新化合物10B12是一种具有异恶唑环的DAG-内酯，以纳摩尔亲和力结合 PKCα 和 PKCε。值得注意的是，10B12在细胞中对 PKCε 易位显示优先选择性，并诱导 PKCε 依赖性肌动蛋白细胞骨架重组为肺癌细胞的外周褶皱。我们得出结论，在 DAG-内酯中引入稳定的异恶唑环作为酯替代物是一种实现 PKC 同工酶选择性的新型结构方法。
• Exploring the influence of indololactone structure on selectivity for binding to the C1 domains of PKCα, PKCε, and RasGRP
  作者：Eleonora Elhalem、Lucía Gandolfi Donadío、Xiaoling Zhou、Nancy E. Lewin、Lia C. Garcia、Christopher C. Lai、James A. Kelley、Megan L. Peach、Peter M. Blumberg、María J. Comin

  DOI：10.1016/j.bmc.2017.03.022

  日期：2017.6

  Cl domain-containing proteins, such as protein kinase C (PKC), have a central role in cellular signal transduction. Their involvement in many diseases, including cancer, cardiovascular disease, and immunological and neurological disorders has been extensively demonstrated and has prompted a search for small molecules to modulate their activity. By employing a diacylglycerol (DAG)-lactone template, we have been able to develop ultra potent analogs of diacylglycerol with nanomolar binding affinities approaching those of complex natural products such as phorbol esters and bryostatins. One current challenge is the development of selective ligands capable of discriminating between different protein family members. Recently, structure-activity relationship studies have shown that the introduction of an indole ring as a DAG-lactone substituent yielded selective Ras guanine nucleotide-releasing protein (RasGRP1) activators when compared to PKC alpha and PKC epsilon. In the present work, we examine the effects of ligand selectivity relative to the orientation of the indole ring and the nature of the DAG-lactone template itself. Our results show that the indole ring must be attached to the lactone moiety through the sn-2 position in order to achieve Ra5GRP1 selectivity. (C) 2017 Elsevier Ltd. All rights reserved.