摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

bethyl (S,E)-4-((tert-butoxycarbonyl)amino)-2-methylpent-2-enoate | 109986-65-4

中文名称
——
中文别名
——
英文名称
bethyl (S,E)-4-((tert-butoxycarbonyl)amino)-2-methylpent-2-enoate
英文别名
methyl (E,4S)-2-methyl-4-[(2-methylpropan-2-yl)oxycarbonylamino]pent-2-enoate
bethyl (S,E)-4-((tert-butoxycarbonyl)amino)-2-methylpent-2-enoate化学式
CAS
109986-65-4
化学式
C12H21NO4
mdl
——
分子量
243.303
InChiKey
IDIXFDQUNONYNQ-FLOXNTQESA-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):
    2.02
  • 重原子数:
    17.0
  • 可旋转键数:
    3.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.67
  • 拓扑面积:
    64.63
  • 氢给体数:
    1.0
  • 氢受体数:
    4.0

上下游信息

  • 下游产品
    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:
    bethyl (S,E)-4-((tert-butoxycarbonyl)amino)-2-methylpent-2-enoatesodium hydroxide 、 sodium tetrahydroborate 、 氯甲酸乙酯三乙胺 作用下, 以 甲醇乙醇正丁醇 为溶剂, 反应 16.5h, 生成 (1'S)-1'-methylzeotine
    参考文献:
    名称:
    Purines. XXXIII. Syntheses and cytokinin activities of both enantiomers of 1'-methylzeatin and their 9-.BETA.-D-ribofuranosides.
    摘要:
    由 Pseudomonas syringae pv savastanoi 分泌的细胞分裂素 1'-methylzeatin 及其 9-riboside 的结构和绝对构型已被确定,分别为 [R-(E)]-2-甲基-4-(9H-嘌呤-6-基氨基)-2-戊烯-1-醇[(1'R)-2]和 [R-(E)]-N-(4-羟基-1、(1'R)-和(1'S)-1'-甲基玉米素[(1'R)-2 和 (1'S)-2]及其 9-β-D-ribofuranosides [(1'R)-4和 (1'S)-4]的手性合成。这些玉米素衍生物在烟草胼胝体和莴苣种子萌发生物测定中进行了细胞分裂素活性测试。结果发现,"天然 "对映体(1'R)-2 的活性与玉米素(1)本身相同,而且比其 9-核苷[(1''R)-4]的活性更高。非天然 "对映体(1'S)-2 及其 9-核苷[(1''S)-4]的活性分别低于相应的天然细胞分裂素(1'R)-2 和 (1''R)-4)。
    DOI:
    10.1248/cpb.37.1758
  • 作为产物:
    参考文献:
    名称:
    转酰基转移酶聚酮化合物生物合成中脱水双模块的机制:保肝汉泰霉素的示范研究
    摘要:
    生物测定引导的分级分离导致从壮观链霉菌CCTCC M2017417 中分离出杭泰霉素 (HTM)并发现了其保肝特性。NMR 的结构解析表明需要进行结构修正。还分离了推定的 HTM 降解产物,并通过全合成确认了其结构。生物合成基因簇被鉴定出来,类似于一种杂合反式-AT PKS/NRPS 生物合成机器,其第一个 PKS 酶包含一个内部脱水双模块,通常发现它在其他反式中分裂-AT PKS。这种脱水双模块的机制经常被提出,但从未被深入研究过。在这里,我们介绍了体内突变和体外酶促实验,这些实验通过脱水双模块提供了对催化的初步和详细的机制见解。
    DOI:
    10.1002/anie.202106250
点击查看最新优质反应信息

文献信息

  • Asymmetric Syntheses of α-Methyl γ-Amino Acid Derivatives
    作者:Ye Zhu、Sakunchai Khumsubdee、Amber Schaefer、Kevin Burgess
    DOI:10.1021/jo201215c
    日期:2011.9.16
    this reaction; syn-products were formed from the E-alkenes, while the Z-isomers gave anti-target materials, both with high diastereoselectivities. This study featured asymmetric catalysis to elaborate optically active substrates into more stereochemically complex chirons; we suggest that the approach used, optimization of stereocontrol by varying peripheral aspects of the substrate, tends to be easier
    进行该项目的目的是证明Crabtree催化剂“ cat ”的手性卡宾-恶唑啉类似物介导的不对称氢化在氨基酸烯丙基胺生物的不对称氢化中的潜力。改变底物的外围特征(保护基,与氧化还原过程有关的官能团和烯烃的几何形状)以优化由底物施加的立体化学载体,并使它们与催化剂载体对齐。N-乙酰基保护,O -TBDPS-保护的烯丙基底物9a - e出现了最佳的反应效果。顺式产物是由E-烯烃形成的,而Z是-异构体提供了具有高非对映选择性的抗目标物质。这项研究的特点是不对称催化,将光学活性底物精制成更立体化学的螯合物。我们建议,对于每种类型的底物,所采用的方法通过改变底物的外围方面来优化立体控制,往往比从头设计催化剂更容易。换句话说,底物载体的优化可能比通过配体修饰来增强催化剂载体更容易。
  • Syntheses and absolute configurations of the cytokinins 1′-methylzeatin and its 9-riboside
    作者:Taisuke Itaya、Tozo Fujii、Antonio Evidente、Giacomino Randazzo、Giuseppe Surico、Nicola S. Iacobellis
    DOI:10.1016/s0040-4039(00)87806-5
    日期:1986.1
    On the basis of the chiral syntheses of (1′R)-I and (1′S)-I and of their 9-ribosides (1″R)-III and (1″S)-III from D- and L-alanines, the structures of the cytokinins 1′-methylzeatin and its 9-riboside have been established to be (1′R)-I and (1″R)-III.
    上(1'的手性合成的基础- [R)-1和(1'小号)-I和其9- ribosides(1“ - [R)-III和(1”小号)-III从d -和大号-丙酸,细胞分裂素1'- methylzeatin和其9-核糖核苷的结构已经被确定为(1' - [R)-1和(1“ - [R)-III。
  • Purines. LV. Syntheses and Cytokinin Activities of Some Adenine and Adenosine Derivatives Related to 1'-Methylzeatin.
    作者:Tozo FUJII、Masashi OHBA、Hitoshi KAWAMURA、Tsuyoshi HANEISHI、Satoshi MATSUBARA
    DOI:10.1248/cpb.41.1362
    日期:——
    (1'S)-1-Methyl-cis-zeatin [(1'S)-2] and its 9-β-D-ribofuranoside [(1"S)-4] were synthesized from L-alanine through [S-(Z)]-4-amino-2-methyl-2-penten-1-ol ethanedioate [(S)-3]. Condensations of 2-hydroxy-6-methylthiopurine (16) with the trans-isomeric amine salt [(S)-15], its enantiomer [(R)-15], and the racemic modification [(±)-15] furnished (1'S)-, (1'R)-, and (±)-2-hydroxy-1'-methyl-trans-zeatine (6), respectively. A similar condensation of 16 with methylamine yielded 2-hydroxy-N6-methyladenine (7). These adenine derivatives were tested for cytokinin activity in the tobacco callus bioassay, and the order of their activity was (1'R)-6>(±)-6>(1'S)-2>7; on the other hand, (1"S)-4 and (1'S)-6 were completely inactive at 0.1-100μM and 0.01-10μM concentrations, respectively. As a result of the above syntheses of (1'R)-6, (1'S)-6, (±)-6, and 7, the gross structures of a marine green alga cytokinin and of a blue coral cytokinin were established to be 6 and 7, respectively.
    L-丙氨酸为原料,通过[S-(Z)]合成(1'S)-1-甲基-顺式玉米素[(1'S)-2]及其9-β-D-呋喃核苷[(1"S)-4] -4-基-2-甲基-2-戊烯-1-醇乙二酸酯[(S)-3] 2-羟基-6-甲基嘌呤(16)与反式异构胺盐[(S)-15]、其对映体[(R)-15]和外消旋体[(±)-15]提供(1'S)-、(1'R)-和(± )-2-羟基-1'-甲基-反式-玉米丁(6),分别用甲胺进行类似的缩合,得到2-羟基-N6-甲基腺嘌呤(7)。烟草愈伤组织生物测定中的细胞分裂素活性,其活性顺序为(1'R)-6>(±)-6>(1'S)-2>7;另一方面,(1"S)-4和(1'S)-6 分别在 0.1-100μM 和 0.01-10μM 浓度下完全失活。作为(1'R)-6、(1'S)-6、(±)-6和7的上述合成的结果,海洋绿藻细胞分裂素和蓝珊瑚细胞分裂素的总体结构被确定为分别为6和7。
  • Calyculins. Asymmetric synthesis of the C26-C32 fragment
    作者:Ari M.P. Koskinen、Petri M. Pihko
    DOI:10.1016/0040-4039(94)85330-4
    日期:1994.10
    An efficient and highly stereocontrolled method for the construction of the natural syn stereochemistry at C30 and C32 in the calyculin C oxazole fragment has been devised starting from alanine. The title fragment itself is accessible in seven steps from N-BOC-alaninal.
    从丙酸开始,已经设计出一种有效的和高度立体控制的方法,用于在花萼素C恶唑片段中的C 30和C 32处构建天然的顺式立体化学。可以从N-BOC-alaninal通过七个步骤访问标题片段本身。
  • Synthesis of the C<sub>26</sub>−C<sub>32</sub> Oxazole Fragment of Calyculin C:  A Test Case for Oxazole Syntheses
    作者:Petri M. Pihko、Ari M. P. Koskinen
    DOI:10.1021/jo971167m
    日期:1998.1.1
    The synthesis of the C-26-C-32 oxazole fragment 4 and its C-32 epimer 20 of serine/threonine protein phosphatase PP1 and PP2A inhibitor calyculin C is presented. The syn methyl arrangement in 4 was established through cyclic stereocontrol. Several methods for oxidizing the intermediate oxazolines 18 and 19 to the finished oxazole fragments were explored. The best results were obtained with oxidations proceeding through the corresponding ester enolate when the carbamate NH side chain was temporarily protected with a TMS group, or with CuBr2/DBU/HMTA-based oxidations. The finished oxazole fragment 4 was obtained in 21% overall yield, starting from Boc-D-alaninal.
查看更多