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methynolide | 534-32-7

中文名称
——
中文别名
——
英文名称
methynolide
英文别名
(3R,4S,5S,7R,9E,11S,12R)-12-ethyl-4,11-dihydroxy-3,5,7,11-tetramethyl-1-oxacyclododec-9-ene-2,8-dione
methynolide化学式
CAS
534-32-7
化学式
C17H28O5
mdl
——
分子量
312.406
InChiKey
NCFULEXBOBCPCY-MCWBUIHHSA-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

物化性质

  • 熔点:
    164.0-167.2 °C
  • 沸点:
    502.0±50.0 °C(Predicted)
  • 密度:
    1.040±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.1
  • 重原子数:
    22
  • 可旋转键数:
    1
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.76
  • 拓扑面积:
    83.8
  • 氢给体数:
    2
  • 氢受体数:
    5

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

点击查看最新优质反应信息

文献信息

  • Highly stereoselective synthesis of methynolide, the aglycone of the 12-membered ring macrolide methymycin, from D-glucose
    作者:Yuji Oikawa、Tatsuyoshi Tanaka、Osamu Yonemitsu
    DOI:10.1016/s0040-4039(00)84871-6
    日期:1986.1
    A highly stereoselective and efficient synthesis of methynolide, the aglycone of 12-membered macrolide methymycin, was achieved from of C1–C8 and C9–C13 segments synthesized from D-glucose by employing some stereoselective reactions and benzyl-type protecting groups.
    通过立体定向反应和苄基型保护基团,从D-葡萄糖合成的C1-C8和C9-C13片段中,实现了高立体选择性和高效率的甲基萘丙胺(十二元大环内酯间霉素的糖苷配基)的合成。
  • Total synthesis of methymycin
    作者:Hong-Se Oh、Richeng Xuan、Han-Young Kang
    DOI:10.1039/b911200f
    日期:——
    based on Cram chelation control. Ring-closing metathesis, as the key reaction, was carried out to combine the segments for the synthesis of methynolide and 10-epi-methynolide. The total synthesis of methymycin was also achieved by the glycosylation of methynolide with the trichloroimidate derivative of D-desosamine.
    从必要的片段中合成了甲乙内酯和10-表甲甲酰内酯,这些片段是通过基于Cram螯合控制的1,2-立体化学选择,通过将格氏试剂添加到相应的α-烷氧基酮中而制得的。进行闭环复分解作为关键反应,以结合用于合成甲乙内酯和10-表-甲乙内酯的链段。总合成甲霉素也可以通过将甲乙内酯与D-去糖胺的三氯亚氨酸酯衍生物进行糖基化来实现。
  • Highly stereoselective total synthesis of methynolide, the aglycon of the 12-membered macrolide antibiotic methymycin. III. An efficient synthesis of methynolide.
    作者:TATSUYOSHI TANAKA、YUJI OIKAWA、NORIYUKI NAKAJIMA、TATSUO HAMADA、OSAMU YONEMITSU
    DOI:10.1248/cpb.35.2203
    日期:——
    Methynolide (1), the aglycon of the 12-membered macrolide antibiotic methymycin, was synthesized highly stereoselectively and efficiently from D-glucose via two segments i (3 : C-9-C-13) and ii (4 : C-1-C-8). Esterification of the two segments proceeded smoothly by Yamaguchi's method. When the resulting ester (10) was treated with potassium carbonate in toluene in the presence of 18-crown-6 at 80 °C under Nicolaou's conditions, the intramolecular Wittig-Horner reaction occurred very smoothly, and the 12-membered cyclic enone (11) was isolated in excellent yield. Finally, silyl and benzyl protecting groups were removed with fluoride anion and 2, 3-dichloro-5, 6-dicyanobenzoquinone, respectively, to afford methynolide (1) in excellent yield. The overall stereoselectivity for the construction of four new chiral centers was very high (89%).
    甲羟利定(1)是12元大环内酯类抗生素甲羟霉素的糖苷,通过两个片段i(3:C-9-C-13)和ii(4:C-1-C-8)从D-葡萄糖高度立体选择性且高效地合成。通过Yamaguchi的方法,两个片段的酯化反应顺利进行。当在Nicolaou条件下,在18-冠-6的存在下,在甲苯中用碳酸钾处理所得酯(10)时,分子内Wittig-Horner反应非常顺利地发生,12元环烯酮(11)以优异的收率被分离出来。最后,用氟离子和2,3-二氯-5,6-二氰基苯醌分别除去硅烷和苄基保护基,以优异的收率得到甲羟利定(1)。构建四个新手性中心的整体立体选择性非常高(89%)。
  • Macrolide antibiotics—VII
    作者:Carl Djerassi、O. Halpern
    DOI:10.1016/0040-4020(58)80021-6
    日期:1958.1
    Degradation experiments are described which establish rigorously structure (II) for neomethymycin (C25H43NO7). This antibiotic belongs, therefore, to the macrolide group and differs from methymycin (I) only in the location of one hydroxyl group, which results in marked changes in chemical behavior. The two antibiotics appear to have the same absolute configuration at the relevant asymmetric centers
    描述了降解实验,其严格建立了新甲霉素(C 25 H 43 NO 7)的结构(II )。因此,该抗生素属于大环内酯类,仅在一个羟基的位置上与甲基霉素(I)不同,这导致化学行为发生明显变化。两种抗生素在相关的不对称中心处似乎具有相同的绝对构型,如通过常见降解产物的分离和某些旋转分散曲线的总体相似性推断的那样。从生物遗传学的角度来看,新甲霉素中C-12处的羟基位置值得注意。
  • Ditrich, Klaus, Liebigs Annalen der Chemie, 1990, # 8, p. 789 - 793
    作者:Ditrich, Klaus
    DOI:——
    日期:——
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