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(+)-(2R)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-2H-pyran-4(3H)-one | 869336-43-6

中文名称
——
中文别名
——
英文名称
(+)-(2R)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-2H-pyran-4(3H)-one
英文别名
(2R)-2-[2-[tert-butyl(diphenyl)silyl]oxyethyl]-2,3-dihydropyran-4-one
(+)-(2R)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-2H-pyran-4(3H)-one化学式
CAS
869336-43-6
化学式
C23H28O3Si
mdl
——
分子量
380.559
InChiKey
USSGLRNRXNFXNW-HXUWFJFHSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    3.82
  • 重原子数:
    27
  • 可旋转键数:
    7
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.35
  • 拓扑面积:
    35.5
  • 氢给体数:
    0
  • 氢受体数:
    3

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    (+)-(2R)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-2H-pyran-4(3H)-one 在 sodium tetrahydroborate 、 cerium(III) chloride 作用下, 以 甲醇 为溶剂, 生成 (-)-(2R,4S)-2-[2-(tert-butyldiphenylsiloxy)ethyl]-3,4-dihydro-2H-pyran-4-ol
    参考文献:
    名称:
    通过显着的甲醇诱导的动力学螺环化反应立体控制合成螺缩酮
    摘要:
    甲醇诱导的动力学 spiroketalization 反应已被开发用于立体控制的目标和多样性导向的 spiroketals 合成。与现有的螺缩酮合成方法相比,该反应不依赖于热力学产物的稳定性,也不需要氧亲核试剂的轴向攻击。立体异构糖基在 C1 位被烷基化,侧链带有受保护的羟基。醇脱保护后,糖醛被立体选择性环氧化,然后侧链羟基被螺环化,异头碳通过在 -63 摄氏度加入过量的甲醇而发生构型反转。这种螺环化反应似乎是通过甲醇氢键催化进行的,并具有用于形成具有立体异构取代基的五元和六元环。在某些情况下,
    DOI:
    10.1021/ja055033z
  • 作为产物:
    参考文献:
    名称:
    (+)-苯甲唑A的合成研究。(+)-phorboxazole A的高度收敛的第二代全合成。
    摘要:
    [结构:见正文]已经实现了有效的抗肿瘤药(+)-佛洛他唑A(1)的第二代全合成。这种方法的基石包括一个更趋于收敛的策略,其中包括一个完全精巧的C(1-28)大环与一个C(29-46)侧链的后期Stille并集。第二代合成需要24个步骤的最长线性序列,总产率为4.2%。
    DOI:
    10.1021/ol051584i
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文献信息

  • Total Synthesis of (+)-Phorboxazole A Exploiting the Petasis−Ferrier Rearrangement
    作者:Amos B. Smith、Kevin P. Minbiole、Patrick R. Verhoest、Michael Schelhaas
    DOI:10.1021/ja011604l
    日期:2001.11.1
    convergent, stereocontrolled total synthesis of the potent antiproliferative agent (+)-phorboxazole A (1) has been achieved. Highlights of the synthesis include: modified Petasis-Ferrier rearrangements for assembly of both the C(11-15) and C(22-26) cis-tetrahydropyran rings; extension of the Julia olefination to the synthesis of enol ethers; the design, synthesis, and application of a novel bifunctional
    已经实现了强效抗增殖剂 (+)-phorboxazole A (1) 的高度收敛、立体控制的全合成。合成的亮点包括:用于组装 C(11-15) 和 C(22-26) 顺式四氢吡喃环的改良 Petasis-Ferrier 重排;Julia 烯化扩展到烯醇醚的合成;一种新型双功能恶唑关键的设计、合成与应用;C(28) 三甲基锡烷与 C(29) 恶唑三氟甲磺酸酯的 Stille 偶联。最长的线性序列导致 (+)-phorboxazole A (1) 为 27 步,总产率为 3%。
  • (+)-Phorboxazole A Synthetic Studies. A Highly Convergent, Second Generation Total Synthesis of (+)-Phorboxazole A
    作者:Amos B. Smith、Thomas M. Razler、Jeffrey P. Ciavarri、Tomoyasu Hirose、Tomoyasu Ishikawa
    DOI:10.1021/ol051584i
    日期:2005.9.1
    [structure: see text] A second generation total synthesis of the potent antitumor agent (+)-phorboxazole A (1) has been achieved. The cornerstone of this approach comprises a more convergent strategy, involving late-stage Stille union of a fully elaborated C(1-28) macrocycle with a C(29-46) side chain. The second generation synthesis entails the longest linear sequence of 24 steps, with an overall
    [结构:见正文]已经实现了有效的抗肿瘤药(+)-佛洛他唑A(1)的第二代全合成。这种方法的基石包括一个更趋于收敛的策略,其中包括一个完全精巧的C(1-28)大环与一个C(29-46)侧链的后期Stille并集。第二代合成需要24个步骤的最长线性序列,总产率为4.2%。
  • Phorboxazole B synthetic studies: construction of C(1–32) and C(33–46) subtargets
    作者:Ian Paterson、Alan Steven、Chris A. Luckhurst
    DOI:10.1039/b407240e
    日期:——
    The convergent syntheses of the C(1–32) and C(33–46) domains of phorboxazole B are described. An iterative cyclocondensation strategy exploited the Jacobsen hetero-Diels–Alder (HDA) reaction as a platform for the synthesis of both the C(5–9) and C(11–15) tetrahydropyran rings. The use of 2-silyloxydiene coupling partners bearing an increasing resemblance to the phorboxazole skeleton was found to lead to a reduction in diastereoselectivity, however, in the case of the C(11–15) ring. The coupling of aldehyde 21 and 2-silyloxydiene 20 by this route provided a C(1–32) fragment which was elaborated to the macrolide core of phorboxazole B. The synthesis of the C(33–46) domain involved a Nozaki–Kishi coupling of aldehyde 31 and vinyl iodide 39. The syntheses of 31 and 39 were highly diastereoselective: an Evans [Cu(Ph-pybox)](SbF6)2-catalysed Mukaiyama aldol reaction formed the cornerstone of the synthesis of 31 whilst a Nagao–Fujita acetate aldol reaction provided a convenient means of installing the sole stereogenic centre of 39.
    报道了phorboxazole B的C(1–32)和C(33–46)区域的汇聚式合成。一种迭代环加成策略利用了Jacobsen的杂Diels–Alder (HDA)反应作为合成C(5–9)和C(11–15)四氢吡喃环的平台。使用越来越类似于phorboxazole骨架的2-硅氧基二烯作为偶联伙伴,发现导致了对映选择性的降低,但在C(11–15)环的情况下。通过这种方法将醛21和2-硅氧基二烯20偶联,得到了C(1–32)片段,进而发展为phorboxazole B的大环内酯核心。C(33–46)区域的合成涉及醛31和乙烯基碘39的Nozaki–Kishi偶联。31和39的合成高度对映选择性:Evans [Cu(Ph-pybox)](SbF6)2催化的Mukaiyama Aldol反应构成了31合成的基础,而Nagao–Fujita乙酸盐Aldol反应为39唯一手性中心的安装提供了一种便捷的方法。
  • Phorboxazole Synthetic Studies. 1. Construction of a C(3−19) Subtarget Exploiting an Extension of the Petasis−Ferrier Rearrangement
    作者:Amos B. Smith、Patrick R. Verhoest、Kevin P. Minbiole、John J. Lim
    DOI:10.1021/ol990830l
    日期:1999.9.1
    text] In this, the first of two letters, we outline our overall strategy for the total synthesis of phorboxazoles A (1) and B (2), rare oxazole-containing macrolides possessing extraordinary antimitotic activity, and describe the assembly of a C(3-19) subtarget (-)-5 for the total synthesis of phorboxazole A. The synthesis of (-)-5 was achieved in 15 linear steps (12% overall yield), exploiting a modification
    [公式:参见文字]在此,两个字母的第一个,我们概述了总合成佛波唑A(1)和B(2),具有罕见抗有丝分裂活性的稀有含恶唑大环内酯的总体策略,并描述了组装过程C(3-19)子目标(-)-5的总合成佛波唑A。(-)-5的合成是通过15线性步骤(总产率为12%)实现的,利用了Petasis-进行载体重排以构建C(11-15)顺式四氢吡喃。事实证明,二甲基氯化铝(Me2AlCl)是Petasis-Ferrier重排的首选路易斯酸。
  • Synthetic studies directed toward the phorboxazoles: preparation of the C3–C15 bisoxane segment and two stereoisomers
    作者:Patrick B. Greer、William A. Donaldson
    DOI:10.1016/s0040-4020(02)00613-0
    日期:2002.7
    A synthetic approach to the C3-C15 segment of the cytotoxic marine metabolite phorboxazoles is described. This segment consists of a methylene linked bisoxane structure. The first pyran ring was constructed by a Lewis acid catalyzed diene-aldehyde cyclo-condensation. The beta-C-glucoside substitution pattern of this ring was established by a stereoselective allylation. Ozonolysis of vinyl group and enantioselective allylation of the racemic aldehyde generated two separable homoallylic alcohols (-)-22 and (+)-23. The Mosher's esters of each alcohol were determined to be >90% de. Reaction of (-)-22 with acryloyl chloride, followed by ring closing metathesis gave the dihydro-2-pyrone target (-)-5. Mitsunobu inversion of (+)-23 with p-nitrobenzoic acid, hydrolysis, and esterification with acryloyl chloride and ring closing metathesis gave pseudoenantiomeric segment (+)-6. (C) 2002 Published by Elsevier Science Ltd.
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