Boc-L-Trp-OAll

• 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: Boc-L-Trp-OAll
• 英文别名: (S)-allyl 2-((tert-butoxycarbonyl)amino)-3-(1H-indol-3-yl)propanoate；prop-2-enyl (2S)-3-(1H-indol-3-yl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoate
• 化学式: C₁₉H₂₄N₂O₄
• 分子量: 344.411
• InChiKey: GWPGDAREFGYHSO-INIZCTEOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  25
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.37
• 拓扑面积：
  80.4
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Boc-L-Trp-OAll 在 [2-(双环己基膦基)乙基]三甲基三甲基氯化铵 、 苯硅烷 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 2.0h， 以52%的产率得到N-叔丁氧羰基-L-色氨酸
  参考文献：
  名称：

  Synthesis of l-Octaarginine through Microencapsulated Palladium-Catalyzed Allyl Ester Deprotection

  摘要：

  Octaarginine has been described as a molecular transporter. We report a useful synthesis of orthogonally protected L-octaarginine by using a method based on a microencapsulated palladium catalyst. Known palladium-based methods for allyl ester deprotection have been modified to facilitate purification of the unprotected intermediates. This improvement in the purification step has also been tested with a variety of allyl alpha-amino esters and allyl alpha,beta-unsaturated esters.

  DOI：

  10.1055/s-0034-1378379
• 作为产物：
  描述：

  N-叔丁氧羰基-L-色氨酸 、 烯丙醇 在 copper(II) bis(trifluoromethanesulfonate) 、 (4-cyclohexyl-2,4-diazabuta-2,3-dienyl)polystyrene resin 、 四甲基乙二胺 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 16.05h， 生成 Boc-L-Trp-OAll
  参考文献：
  名称：

  聚合物负载的邻苄基和邻烯丙基脲：方便制备，可用于由羧酸合成酯。

  摘要：

  [反应：参见正文]通过铜（II）催化聚合物负载的碳二亚胺与相应醇的反应，制备了聚合物负载的O-甲基，O-苄基和O-烯丙基-异脲。这些聚合物负载的试剂已成功用于以高收率将一系列羧酸转化为甲基，苄基或烯丙基酯。在简单的树脂过滤-溶剂蒸发步骤后，获得具有高纯度（通过NMR> 95％）的产物。

  DOI：

  10.1021/ol0275062

文献信息

• An alternative and facile purification procedure of amidation and esterification reactions using a medium fluorous Mukaiyama reagent
  作者：Masato Matsugi、Misaki Suganuma、Shoko Yoshida、Shohei Hasebe、Yoko Kunda、Kotaro Hagihara、Sayaka Oka

  DOI：10.1016/j.tetlet.2008.09.016

  日期：2008.11

  convenient methodology for the separation of a fluorous by-product using fluorous chemistry is described. A Mukaiyama coupling reagent bearing a medium fluorous tag, between 40% and 60% fluorine by weight, can be effectively separated from non-fluorous components by increasing the water content of the crude reaction mixture and subsequent filtration. Additional fluorous solid phase extraction is not necessary

  描述了一种使用氟化学分离氟副产物的简便方法。通过增加粗反应混合物的水含量并随后过滤，可以有效地将氟含量在40％至60％之间的带有中等氟标签的Mukaiyama偶联剂与非氟组分有效地分离。不需要额外的氟固相萃取。
• Convergent Synthesis of Calcium-Dependent Antibiotic CDA3a and Analogues with Improved Antibacterial Activity via Late-Stage Serine Ligation
  作者：Delin Chen、Kathy Hiu Laam Po、Pilar Blasco、Sheng Chen、Xuechen Li

  DOI：10.1021/acs.orglett.0c01544

  日期：2020.6.19

  A convergent synthesis via the late-stage serine ligation of naturally occurring calcium-dependent antibiotic CDA3a and its analogues has been developed, which allowed us to readily synthesize the analogues with the variation on the lipid tail. Some analogues were found to show 100–500-fold higher antimicrobial activity than the natural compound CDA3a against drug resistant bacteria. This study will

  已经开发了通过后期丝氨酸连接天然存在的钙依赖性抗生素CDA3a及其类似物的聚合合成方法，这使我们能够容易地合成具有脂质尾巴变异的类似物。发现某些类似物对天然抗药性细菌的抗菌活性比天然化合物CDA3a高100-500倍。这项研究将增进我们对CDA3a的了解，并为进一步开发提供有价值的抗菌先导候选物。
• Polymer-Supported <i>O</i>-Benzyl and <i>O</i>-Allylisoureas:  Convenient Preparation and Use in Ester Synthesis from Carboxylic Acids
  作者：Stefano Crosignani、Peter D. White、Rene Steinauer、Bruno Linclau

  DOI：10.1021/ol0275062

  日期：2003.3.1

  copper(II)-catalyzed reaction of polymer-supported carbodiimide with the corresponding alcohols. These polymer-supported reagents were successfully employed to convert a series of carboxylic acids to methyl, benzyl, or allyl esters, in good yields. The products were obtained with high purity (>95% by NMR) after a simple resin filtration-solvent evaporation sequence.

  [反应：参见正文]通过铜（II）催化聚合物负载的碳二亚胺与相应醇的反应，制备了聚合物负载的O-甲基，O-苄基和O-烯丙基-异脲。这些聚合物负载的试剂已成功用于以高收率将一系列羧酸转化为甲基，苄基或烯丙基酯。在简单的树脂过滤-溶剂蒸发步骤后，获得具有高纯度（通过NMR> 95％）的产物。
• A fluorous Mukaiyama coupling reagent for a concise condensation reaction: utility of medium-fluorous strategy
  作者：Yuya Sugiyama、Yuki Kurata、Yoko Kunda、Atsushi Miyazaki、Junko Matsui、Shuichi Nakamura、Hiromi Hamamoto、Takayuki Shioiri、Masato Matsugi

  DOI：10.1016/j.tet.2012.03.034

  日期：2012.5

  condensation reactions using various fluorous Mukaiyama reagents, including a novel medium-fluorous strategy, is described. A Mukaiyama reagent bearing a medium-fluorous content tag, between 40 and 60% fluorine by weight, was prepared and examined in ester and amide-forming condensation reactions. At the end of the reactions, the fluorous pyridone by-product was effectively separated from non-fluorous components

  描述了使用各种含氟Mukaiyama试剂进行缩合反应的整个研究，包括新型中氟策略。制备了带有中等氟含量标签的Mukaiyama试剂，氟含量在40％至60％之间，并在形成酯和酰胺的缩合反应中进行了检测。在反应结束时，通过增加粗反应混合物的水含量并随后过滤沉淀物，有效地将氟吡啶酮副产物与非氟组分分离。还显示了带有氟标签的Mukaiyama试剂与其无氟标签的对应物相比，可显着提高反应速率。有趣的是，观察到氟链越长，Mukaiyama试剂的活性越高。
• Polymer-Supported Mukaiyama Reagent:  A Useful Coupling Reagent for the Synthesis of Esters and Amides
  作者：Stefano Crosignani、Jerome Gonzalez、Dominique Swinnen

  DOI：10.1021/ol0480372

  日期：2004.11.1

  Polymer-supported N-alkyl-2-chloro pyridinium triflate was synthesized in one step from Wang resin. This reagent proved to be a very effective coupling reagent for the synthesis of esters or amides from carboxylic acids and alcohols or amines (primary and secondary). [reaction: see text]

  由Wang树脂一步合成了聚合物负载的N-烷基-2-氯吡啶鎓三氟甲磺酸盐。该试剂被证明是从羧酸和醇或胺（伯和仲）合成​​酯或酰胺的非常有效的偶联剂。[反应：看文字]