(9S,12S)-12-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-aminopropanoyl]amino]propanoyl]-methylamino]-3-(4-methoxyphenyl)propanoyl]amino]propanoyl]-methylamino]-4-methoxy-10-methyl-11-oxo-2-oxa-10-azatricyclo[12.2.2.13,7]nonadeca-1(16),3,5,7(19),14,17-hexaene-9-carboxylic acid | 109011-07-6

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (9S,12S)-12-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-aminopropanoyl]amino]propanoyl]-methylamino]-3-(4-methoxyphenyl)propanoyl]amino]propanoyl]-methylamino]-4-methoxy-10-methyl-11-oxo-2-oxa-10-azatricyclo[12.2.2.13,7]nonadeca-1(16),3,5,7(19),14,17-hexaene-9-carboxylic acid
• CAS: 109011-07-6
• 化学式: C₄₁H₅₂N₆O₁₀
• 分子量: 788.898
• InChiKey: ROKCENFTODRXAP-FEZMQHRXSA-N

物化性质

• 沸点：
  1052.9±65.0 °C(Predicted)
• 密度：
  1.32±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.76
• 重原子数：
  57.0
• 可旋转键数：
  13.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  210.14
• 氢给体数：
  4.0
• 氢受体数：
  10.0

反应信息

• 作为反应物：
  描述：

  (9S,12S)-12-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-aminopropanoyl]amino]propanoyl]-methylamino]-3-(4-methoxyphenyl)propanoyl]amino]propanoyl]-methylamino]-4-methoxy-10-methyl-11-oxo-2-oxa-10-azatricyclo[12.2.2.13,7]nonadeca-1(16),3,5,7(19),14,17-hexaene-9-carboxylic acid 在 三氯化铝 、 N,N'-二环己基碳二亚胺 、 乙硫醇 作用下， 以 1,4-二氧六环 为溶剂， 生成 (1S,4R,7S,10S,13S,16S)-24-hydroxy-10-[(4-hydroxyphenyl)methyl]-4,7,9,13,15,29-hexamethyl-22-oxa-3,6,9,12,15,29-hexazatetracyclo[14.12.2.218,21.123,27]tritriaconta-18,20,23,25,27(31),32-hexaene-2,5,8,11,14,30-hexone
  参考文献：
  名称：

  The first total synthesis of deoxybouvardin and RA-VII, novel antitumor cyclic hexapeptides

  摘要：

  DOI：

  10.1021/jo00389a068
• 作为产物：
  描述：

  (9S,12S)-12-[((S)-2-tert-Butoxycarbonylamino-propionyl)-methyl-amino]-4-methoxy-10-methyl-11-oxo-2-oxa-10-aza-tricyclo[12.2.2.1^3,7]nonadeca-1(17),3,5,7(19),14(18),15-hexaene-9-carboxylic acid methyl ester 在 盐酸 、 lithium hydroxide 、 三氟乙酸 作用下， 以 四氢呋喃 、 甲醇 、 水 、 乙酸乙酯 为溶剂， 反应 26.33h， 生成 (9S,12S)-12-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-aminopropanoyl]amino]propanoyl]-methylamino]-3-(4-methoxyphenyl)propanoyl]amino]propanoyl]-methylamino]-4-methoxy-10-methyl-11-oxo-2-oxa-10-azatricyclo[12.2.2.13,7]nonadeca-1(16),3,5,7(19),14,17-hexaene-9-carboxylic acid
  参考文献：
  名称：

  Total Synthesis of an Antitumor Agent RA-VII via an Efficient Preparation of Cycloisodityrosine

  摘要：

  Details of efficient syntheses of (9S, 12S)-cycloisodityrosine (6) and a concise total synthesis of RA-VII(1) were described. An intramolecular SNAr-based cycloetherification reaction was employed as the key ring-closure step for construction of the illusive 14-membered m,p-cyclophane. Treatment of methyl N-[N-(tert-butyloxycarbonyl)-L(3-hydroxy-4-methoxyphenylalanyl)]-L-4-fluoro-3-nitrophenylalaninate ((9S,12S)-10) with potassium carbonate in DMSO at room temperature provided a mixture of two atropdiastereomers 20a and 20b in 75% yield that were transformed into cycloisodityrosine 6 in good overall yield. Furthermore, a size-selective ring-forming process was established for methyl N-[N-(tert-butyloxycarbonyl)-L-(3,4-dihydroxyphenlalanyl)]-L-4-fluoro-3- nitrophenylalaninate ((9S,12S)-11). Thus, cyclization of 11 (K2CO3, DMSO, rt), followed by in situ methylation, gave exclusively the 14-membered m,p-cyclphane 20a and 20b without competitive formation of the alternative 15-membered p,p-cyclophane. The selective ring-forming process allowed us to develop one of the shortest and the most efficient synthesis of cycloisodityrosine to date. Computational studies have shown that it was the elimination, but not the addition, step that determined the ring-size selectivity observed in the cyclization of substrate 11. Coupling of 6 with L-N-Boc-Ala (51) proceeded efficiently to provide the corresponding tripeptide 52 that, after removal of the N-Boc function, was allowed to react with another tripeptide 53 to afford the hexapeptide 50 in good overall yield. Saponification followed by liberation of amino function from 50 gave the seco-acid, whose cyclization (DPPA, DMF, NaHCO3) afforded the natural product RA-VII (1).

  DOI：

  10.1021/jo990432w

文献信息

• Regioselective Synthesis of 14-Membered Biaryl Ethers: Total Synthesis of RA-VII and Deoxybouvardin.
  作者：Tsutomu INOUE、Takashi INABA、Isao UMEZAWA、Masayuki YUASA、Hideji ITOKAWA、Katsuyuki OGURA、Katsuichiro KOMATSU、Hiroshi HARA、Osamu HOSHINO

  DOI：10.1248/cpb.43.1325

  日期：——

  In order to obtain a key compound (22a") for synthesis of RA-VII (1) and deoxybouvardin (2), construction of the 14-membered ring system was performed by means of thallium trinitrate-mediated oxidation of the tetrahalogeno amides 5-7. The dibromo dichloro amide 6 or the bromo trichloro amide 7 gave a natural type of 14-membered ring dienone (23a or 23c), whereas the tetrabromo amide 5 gave an unnatural type of product, 19a. The formation of the latter product 19a could be understood on the basis of energy calculations on plausible intermediates 26a-c and 27a-c in the transition state in the oxidaive coupling reaction. Compound 23a was further converted to 22a" through conventional procedures (aromatization; methylation; catalytic hydrogenation). This intermediate was readily converted to 1 and 2. Thus, total synthesis of RA-VII (1) and deoxybouvardin (2) was achieved for the first time.

  为了获得合成RA-VII（1）和去氧布瓦丁（2）的关键化合物（22a"），通过三硝酸铋介导的氧化反应对四卤酰胺5-7构建了14元环体系。二溴二氯酰胺6或溴三氯酰胺7产生了一种天然类型的14元环二烯酮（23a或23c），而四溴酰胺5则产生了一种非自然的产物19a。产物19a的形成可以通过对氧化偶联反应中可能的过渡态中间体26a-c和27a-c进行能量计算来理解。化合物23a通过常规程序（芳构化；甲基化；催化氢化）进一步转化为22a"。该中间体可以很方便地转化为1和2。因此，RA-VII（1）和去氧布瓦丁（2）的总合成首次得以实现。
• Total synthesis of deoxybouvardin and RA-VII: macrocyclization via an intramolecular Ullmann reaction
  作者：Dale L. Boger、Daniel Yohannes

  DOI：10.1021/ja00004a062

  日期：1991.2

  Ullmann condensation reaction for direct closure to the 14-membered diaryl ethers that have proven inaccessible or less accessible by alternative routes and the use of this key macrocyclization reaction in the total synthesis of RA-VII and deoxybouvardin

  我们详细介绍了实施分子内 Ullmann 缩合反应以直接封闭 14 元二芳基醚的成功研究，这些二芳基醚已证明无法通过替代途径或难以通过替代途径获得，以及在 RA-VII 的全合成中使用这种关键的大环化反应和脱氧布瓦丁