(3E,5E,7S,8S,10E,13E,15E,19S)-8-[(2R,4S,5S,6R)-4-羟基-6-甲基-5-甲基氨基四氢吡喃-2-基]氧基-7,11,13,19-四甲基-1-氮杂环二十碳-3,5,10,13,15-五烯-2-酮 | 150999-05-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: (3E,5E,7S,8S,10E,13E,15E,19S)-8-[(2R,4S,5S,6R)-4-羟基-6-甲基-5-甲基氨基四氢吡喃-2-基]氧基-7,11,13,19-四甲基-1-氮杂环二十碳-3,5,10,13,15-五烯-2-酮
• 英文名称: (6S,7S,18S)-20-aza-6,10,12,18-tetramethyl-7-O-(2',4',6'-trideoxy-4'-methylamino-D-ribohexopyranosyl)cycloicosa-2,4,9,12,14-pentaenone
• 英文别名: (-)-vicenistatin；vicenistatin；NSC-641691；(3E,5E,7S,8S,10E,13E,15E,19S)-8-[(2R,4S,5S,6R)-4-hydroxy-6-methyl-5-(methylamino)oxan-2-yl]oxy-7,11,13,19-tetramethyl-1-azacycloicosa-3,5,10,13,15-pentaen-2-one
• CAS: 150999-05-6
• 化学式: C₃₀H₄₈N₂O₄
• 分子量: 500.722
• InChiKey: FINGADBUNZWVLV-KVAOKYIVSA-N

物化性质

• 沸点：
  678.3±55.0 °C(Predicted)
• 密度：
  1.05±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  36
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.63
• 拓扑面积：
  79.8
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (3E,5E,7S,8S,10E,13E,15E,19S)-8-[(2R,4S,5S,6R)-4-羟基-6-甲基-5-甲基氨基四氢吡喃-2-基]氧基-7,11,13,19-四甲基-1-氮杂环二十碳-3,5,10,13,15-五烯-2-酮 在 palladium on activated charcoal 盐酸 、 氢气 、 potassium carbonate 、 溶剂黄146 作用下， 以 四氢呋喃 、 甲醇 、 水 为溶剂， 反应 24.0h， 生成
  参考文献：
  名称：

  Substrate Flexibility of Vicenisaminyltransferase VinC Involved in the Biosynthesis of Vicenistatin

  摘要：

  A glycosyltransferase VinC is involved in the biosynthesis of antitumor beta-glycoside antibiotic vicenistatin. It catalyzes a glycosyl transfer reaction between dTDP-alpha-D-vicenisamine and vicenilactam. Previous identification of its broad substrate specificity toward various glycosyl acceptors enabled us to explore the potential of VinC for glycodiversification. In vitro study of the substrate specificity toward several dTDP-sugars with vicenilactam established that VinC displayed activities with alpha-anomers of several dTDP-2-deoxy-D-sugars such as mycarose, digitoxose, olivose, and 2-deoxyglucose to afford respective beta-glycosides. Notably, beta-anomers of dTDP-2-deoxy-D-sugars also appeared to be accepted by VinC to form alpha-glycosides. Furthermore, VinC is capable of catalyzing glycosyl transfer reactions from both the alpha-anomer and beta-anomer of dTDP-L-mycarose, respectively, into beta-glycoside and alpha-glycoside. These results indicate that VinC is a unique glycosyltransferase possessing broad substrate specificity. The mechanism of this axially oriented glycosidic bond formation from the equatorially oriented dTDP-sugar might be explained by conformational change of dTDP-sugar to a boat conformation during the glycosyl transfer reaction. To apply these features of VinC for glycodiversification, 22 sets of structurally diverse glycosides were constructed using unnatural glycosyl donors and acceptors.

  DOI：

  10.1021/ja0685250
• 作为产物：
  描述：

  N-benzyloxycarbonyl-4-methylamino-2,4,6-trideoxy-D-ribo-hexopyranose 在 palladium on activated charcoal Tris-HCl buffer 、 氢气 作用下， 以 甲醇 、 水 、 二甲基亚砜 为溶剂， 反应 2.5h， 生成 (3E,5E,7S,8S,10E,13E,15E,19S)-8-[(2R,4S,5S,6R)-4-羟基-6-甲基-5-甲基氨基四氢吡喃-2-基]氧基-7,11,13,19-四甲基-1-氮杂环二十碳-3,5,10,13,15-五烯-2-酮
  参考文献：
  名称：

  Substrate Flexibility of Vicenisaminyltransferase VinC Involved in the Biosynthesis of Vicenistatin

  摘要：

  A glycosyltransferase VinC is involved in the biosynthesis of antitumor beta-glycoside antibiotic vicenistatin. It catalyzes a glycosyl transfer reaction between dTDP-alpha-D-vicenisamine and vicenilactam. Previous identification of its broad substrate specificity toward various glycosyl acceptors enabled us to explore the potential of VinC for glycodiversification. In vitro study of the substrate specificity toward several dTDP-sugars with vicenilactam established that VinC displayed activities with alpha-anomers of several dTDP-2-deoxy-D-sugars such as mycarose, digitoxose, olivose, and 2-deoxyglucose to afford respective beta-glycosides. Notably, beta-anomers of dTDP-2-deoxy-D-sugars also appeared to be accepted by VinC to form alpha-glycosides. Furthermore, VinC is capable of catalyzing glycosyl transfer reactions from both the alpha-anomer and beta-anomer of dTDP-L-mycarose, respectively, into beta-glycoside and alpha-glycoside. These results indicate that VinC is a unique glycosyltransferase possessing broad substrate specificity. The mechanism of this axially oriented glycosidic bond formation from the equatorially oriented dTDP-sugar might be explained by conformational change of dTDP-sugar to a boat conformation during the glycosyl transfer reaction. To apply these features of VinC for glycodiversification, 22 sets of structurally diverse glycosides were constructed using unnatural glycosyl donors and acceptors.

  DOI：

  10.1021/ja0685250

文献信息

• Absolute stereochemistry of vicenistatin, a novel 20-membered macrocyclic lactam antitumor antibiotic
  作者：Hiroko Arai、Yoshitaka Matsushima、Tadashi Eguchi、Kazutoshi Shindo、Katsumi Kakinuma

  DOI：10.1016/s0040-4039(98)00454-7

  日期：1998.5

  The absolute stereochemistry of the aglycon part of an antitumor antibiotic vicenistatin (1) was determined by a synthetic approach. Two relevant components degradatively derived from natural 1 were compared with the corresponding synthetic standards prepared from known compounds by stereochemically defined chemistry. The absolute configuration of 1 turned out to be 6S,7S,18S.

  通过合成方法确定抗肿瘤抗生素维斯他汀（1）的糖苷配基部分的绝对立体化学。通过立体化学确定的化学方法，将从天然1降解的两种相关组分与由已知化合物制备的相应合成标准品进行了比较。的绝对构型1原来是6小号，7小号，18小号。
• Synthesis and Structure-Activity Relationship of Vicenistatin, a Cytotoxic 20-Membered Macrolactam Glycoside
  作者：Hayato Fukuda、Yuko Nishiyama、Shiina Nakamura、Yutaro Ohno、Tadashi Eguchi、Yoshiharu Iwabuchi、Takeo Usui、Naoki Kanoh

  DOI：10.1002/asia.201200615

  日期：2012.12

  generate the desired 20‐membered macrolactam. This second‐generation strategy made it possible to prepare synthetic analogues of vicenistatin, including the C20‐ and/or C23‐demethyl analogues. Evaluation of the cytotoxic effect of these analogues indicated the importance of the fixed conformation of aglycon for determining the biological activity of the vicenistatins.

  我们已经开发了维斯他汀及其类似物的两种合成物。我们的第一代策略包括通过在C3–C13片段与C1–C2，C14–C19片段之间进行分子间的Horner–Wadsworth–Emmons反应，快速顺序地组装大环内酰胺，然后进行分子内Stille偶联反应。第二代策略利用己烯中间体的闭环复分解反应生成所需的20元大环内酰胺。第二代策略使制备维斯他汀的合成类似物成为可能，包括C20-和/或C23-去甲基类似物。对这些类似物的细胞毒性作用的评估表明，糖苷配基的固定构象对于测定反尼他汀的生物活性很重要。
• Concise Total Synthesis of Vicenistatin
  作者：Naoki Kanoh、Hayato Fukuda、Shiina Nakamura、Tadashi Eguchi、Yoshiharu Iwabuchi

  DOI：10.1055/s-0030-1258574

  日期：2010.10

  A highly convergent total synthesis of macrocyclic lactam glycoside vicenistatin is described. Key features of the synthesis include rapid assembly of the macrolactam part and macrocyclic ring closure via intramolecular Stille coupling.

  描述了大环内酰胺糖苷维尼他汀的高度收敛全合成。该合成的主要特点包括大环内酰胺部分的快速组装和通过分子内 Stille 偶联实现大环闭环。
• A Natural Protecting Group Strategy To Carry an Amino Acid Starter Unit in the Biosynthesis of Macrolactam Polyketide Antibiotics
  作者：Yuji Shinohara、Fumitaka Kudo、Tadashi Eguchi

  DOI：10.1021/ja208927r

  日期：2011.11.16

  Macrolactam antibiotics are an important class of macrocyclic polyketides that contain a unique nitrogen-containing starter unit. In the present study, a set of starter biosynthetic enzymes in the macrolactam antibiotic vicenistatin was characterized. We found that the protection-deprotection strategy of the aminoacyl-ACP intermediate was critical in this system. On the basis of bioinformatics, the

  大环内酰胺抗生素是一类重要的大环聚酮化合物，含有独特的含氮起始单元。在本研究中，对大环内酰胺类抗生素维尼司他丁中的一组起始生物合成酶进行了表征。我们发现氨酰基-ACP 中间体的保护-脱保护策略在该系统中至关重要。在生物信息学的基础上，所描述的途径也被提出作为其他大环内酰胺抗生素生物合成中携带氨基酸的常用方法。
• Isolation and Structure Elucidation of Vicenistatin M, and Importance of the Vicenisamine Aminosugar for Exerting Cytotoxicity of Vicenistatin.
  作者：YOSHITAKA MATSUSHIMA、TAKUYA NAKAYAMA、MASAKI FUJITA、RENUKA BHANDARI、TADASHI EGUCHI、KAZUTOSHI SHINDO、KATSUMI KAKINUMA

  DOI：10.7164/antibiotics.54.211

  日期：——

  A new analogue of Vicenistatin was isolated from the producing strain Streptomyces sp. HC-34. A characteristic of the elucidated structure involved the existence of a neutral sugar mycarose instead of an aminosugar vicenisamine of Vicenistatin. The absolute stereochemistry of the new analogue (named as Vicenistatin M) was determined by the synthesis of D-mycarose and of vicenistatin M itself. Biological testing of Vicenistatin M suggested the importance of vicenisamine for exerting the cytotoxicity of vicenistatin.

  从生产菌株链霉菌属（Streptomyces sp.）HC-34中分离出一种新的维西尼司他汀类似物。已阐明结构的一个特征是存在一种中性糖麦芽糖，而不是维西尼司他汀的氨基糖维西尼司他胺。通过合成D-麦芽糖和维西尼司他汀M本身，确定了新类似物（命名为维西尼司他汀M）的绝对立体化学结构。维西尼司他汀M的生物学测试表明，维西尼司他胺对于发挥维西尼司他汀的细胞毒性至关重要。