S-[2-[3-[[(2R)-4-[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-3-phosphonooxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]oxy-2-hydroxy-3,3-dimethylbutanoyl]amino]propanoylamino]ethyl] 3-chlorobenzenecarbothioate | 117411-08-2

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: S-[2-[3-[[(2R)-4-[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-3-phosphonooxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]oxy-2-hydroxy-3,3-dimethylbutanoyl]amino]propanoylamino]ethyl] 3-chlorobenzenecarbothioate
• CAS: 117411-08-2
• 化学式: C₂₈H₃₉ClN₇O₁₇P₃S
• 分子量: 906.095
• InChiKey: BSVVDXSHOMTERW-TYHXJLICSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.4
• 重原子数：
  57
• 可旋转键数：
  21
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  389
• 氢给体数：
  9
• 氢受体数：
  22

反应信息

• 作为反应物：
  描述：

  S-[2-[3-[[(2R)-4-[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-3-phosphonooxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]oxy-2-hydroxy-3,3-dimethylbutanoyl]amino]propanoylamino]ethyl] 3-chlorobenzenecarbothioate 、 在 taxane 2-O-benzoyltransferase 作用下， 以 aq. phosphate buffer 为溶剂， 生成
  参考文献：
  名称：

  Biocatalytic and Regioselective Exchange of 2‐O‐Benzoyl for 2‐O‐(m‐Substituted)Benzoyl Groups to Make Precursors of Next‐Generation Paclitaxel Drugs

  摘要：

  A taxane 2‐O‐benzoyltransferase (mTBT, derived from Accession: AF297618) biocatalyzed the dearoylation and rearoylation of next‐generation taxane precursors of drugs effective against multidrug‐resistant cancer cells. Various taxanes bearing an acyl, hydroxyl, or oxo group at C13 were screened to assess their turnover by mTBT catalysis. The 13‐oxotaxanes were the most productive, where 2‐O‐debenzoylation of 13‐oxobaccatin III was turned over faster compared to 13‐oxo‐10‐O‐(n‐propanoyl)‐10‐O‐deacetylbaccatin III and 13‐oxo‐10‐O‐(cyclopropane carbonyl)‐10‐O‐deacetylbaccatin III, yielding ~20 mg of each. mTBT catalysis was likely affected by an intramolecular hydrogen bond with the C13−hydroxyl. Oxidation to the 13‐oxo recovered catalysis. The experimental data for the debenzoylation reaction was supported by Gaussian‐accelerated molecular dynamics simulations that evaluated the conformational changes caused by different functional groups at C13 of the substrate. These findings also helped postulate where the 2‐O‐benzoylation reaction occurs on the paclitaxel pathway in nature. mTBT rearoylated the debenzoylated 13‐oxobaccatin III acceptors fastest with a non‐natural 3‐fluorobenzoyl CoA among the other aroyl CoA thioesters evaluated, yielding ~10 mg of each with excellent regioselectivity at laboratory scale. Reducing the 13‐oxo group to a hydroxyl yielded key modified baccatin III precursors (~10 mg at laboratory scale) of new‐generation taxoids.

  DOI：

  10.1002/cctc.202400186
• 作为产物：
  描述：

  辅酶 A 、 3-氯苯甲酸 在 benzoate-CoA ligase from rhodopseudomonas Palustri 、 5’-三磷酸腺苷 、 magnesium chloride 作用下， 反应 24.0h， 生成 S-[2-[3-[[(2R)-4-[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-3-phosphonooxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]oxy-2-hydroxy-3,3-dimethylbutanoyl]amino]propanoylamino]ethyl] 3-chlorobenzenecarbothioate
  参考文献：
  名称：

  建立用于前体导向的聚酮化合物生物合成的工具包：探索酸性CoA利加斯的底物混杂

  摘要：

  聚酮化合物是化学上多样化且具有医学上重要意义的生物化学物质，它们是通过聚酮化合物合酶从酰基辅酶A前体生物合成的。聚酮化合物的组合生物合成的局限性之一是缺少工具包，该工具包描述了递送聚酮化合物生物合成所必需的新型酰基-CoA前体的方法。使用从各种植物和微生物中获得的5种酸性CoA连接酶，我们通过针对123种羧酸的文库筛选每种酸性CoA连接酶，生物合成了79种酰基CoA硫酯的初始文库。酰基-CoA硫酯库包括肉桂基-CoA，3-苯基丙酰基-CoA，苯甲酰基-CoA，苯乙酰基-CoA，丙二酰-CoA，饱和和不饱和脂族CoA硫酯和双环芳族CoA硫酯的衍生物。在我们对新型酰基辅酶A前体的生物合成路线的搜索中，我们发现了两种以前未报道过的丙二酰辅酶A衍生物（3-硫代苯丙氨酰辅酶A和苯基丙二酰辅酶A），无法通过规范的丙二酰辅酶A合成酶生产。该报告强调了确定常规底物池之外底物混杂的实用性和重要性，并描述了建

  DOI：

  10.1021/bi300425j

文献信息

• Point Mutations (Q19P and N23K) Increase the Operational Solubility of a 2α-<i>O</i>-Benzoyltransferase that Conveys Various Acyl Groups from CoA to a Taxane Acceptor
  作者：Irosha N. Nawarathne、Kevin D. Walker

  DOI：10.1021/np900524d

  日期：2010.2.26

  Two site-directed Mutations within the wild-type 2-O-benzoyltransferase (tbt) cDNA, from Taxus cuspidata plants, yielded air encoded protein containing replacement amino acids at Q19P and N23K that trial) to a solvent-exposed loop region. The likely significant changes in the biophysical properties invoked by these mutations Caused the overexpressed, modified TBT (mTBT) to partition into the Soluble enzyme fraction about 5-fold greater than the wild-type enzyme. Sufficient protein could now be acquired to examine the scope of the substrate specificity of mTBT by incubation with 7,13-O,O-diacetyl-2-O-debenzoylbaceatin III that was mixed individually with various substituted benzoyls, alkanoyls, and (E)-butenoyl CoA donors. The mTBT catalyzed the conversion of each 7,13-O,O-diacetyl-2-O-debenzoylbaccatin III to several 7,13-O,O-diacetyl-2-O-acyl-2-O-debenzoylbaccatin III analogues. The relative catalytic efficiency of mTBT with the 7,13-O,O-diacetyl-2-O-debenzoyl surrogate Substrate and heterole carbonyl CoA substrates was slightly greater than with the natural aroyl substrate benzoyl CoA, While substituted benzoyl CoA thioesters were less productive. Short-chain hydrocarbon carbonyl and cyclohexanoyl CoA thioesters were also productive, where C-4 Substrates were transferred by mTBT with similar to 10- to 17-fold greater catalytic efficiency compared to the transfer of benzoyl. The described broad specificity of mTBT suggests (flat a plethora of 2-O-acyl variants of the antimitotic paclitaxel can be assembled through biocatalytic sequences.
• Establishing a Toolkit for Precursor-Directed Polyketide Biosynthesis: Exploring Substrate Promiscuities of Acid-CoA Ligases
  作者：Maybelle Kho Go、Jeng Yeong Chow、Vivian Wing Ngar Cheung、Yan Ping Lim、Wen Shan Yew

  DOI：10.1021/bi300425j

  日期：2012.6.5

  biosynthesized from acyl-CoA precursors by polyketide synthases. One of the limitations to combinatorial biosynthesis of polyketides has been the lack of a toolkit that describes the means of delivering novel acyl-CoA precursors necessary for polyketide biosynthesis. Using five acid-CoA ligases obtained from various plants and microorganisms, we biosynthesized an initial library of 79 acyl-CoA thioesters by screening

  聚酮化合物是化学上多样化且具有医学上重要意义的生物化学物质，它们是通过聚酮化合物合酶从酰基辅酶A前体生物合成的。聚酮化合物的组合生物合成的局限性之一是缺少工具包，该工具包描述了递送聚酮化合物生物合成所必需的新型酰基-CoA前体的方法。使用从各种植物和微生物中获得的5种酸性CoA连接酶，我们通过针对123种羧酸的文库筛选每种酸性CoA连接酶，生物合成了79种酰基CoA硫酯的初始文库。酰基-CoA硫酯库包括肉桂基-CoA，3-苯基丙酰基-CoA，苯甲酰基-CoA，苯乙酰基-CoA，丙二酰-CoA，饱和和不饱和脂族CoA硫酯和双环芳族CoA硫酯的衍生物。在我们对新型酰基辅酶A前体的生物合成路线的搜索中，我们发现了两种以前未报道过的丙二酰辅酶A衍生物（3-硫代苯丙氨酰辅酶A和苯基丙二酰辅酶A），无法通过规范的丙二酰辅酶A合成酶生产。该报告强调了确定常规底物池之外底物混杂的实用性和重要性，并描述了建
• Biocatalytic and Regioselective Exchange of 2‐<i>O</i>‐Benzoyl for 2‐<i>O</i>‐(<i>m</i>‐Substituted)Benzoyl Groups to Make Precursors of Next‐Generation Paclitaxel Drugs
  作者：Aimen Al‐Hilfi、Zhen Li、Kenneth M. Merz、Irosha N. Nawarathne、Kevin D. Walker

  DOI：10.1002/cctc.202400186

  日期：——

  A taxane 2‐O‐benzoyltransferase (mTBT, derived from Accession: AF297618) biocatalyzed the dearoylation and rearoylation of next‐generation taxane precursors of drugs effective against multidrug‐resistant cancer cells. Various taxanes bearing an acyl, hydroxyl, or oxo group at C13 were screened to assess their turnover by mTBT catalysis. The 13‐oxotaxanes were the most productive, where 2‐O‐debenzoylation of 13‐oxobaccatin III was turned over faster compared to 13‐oxo‐10‐O‐(n‐propanoyl)‐10‐O‐deacetylbaccatin III and 13‐oxo‐10‐O‐(cyclopropane carbonyl)‐10‐O‐deacetylbaccatin III, yielding ~20 mg of each. mTBT catalysis was likely affected by an intramolecular hydrogen bond with the C13−hydroxyl. Oxidation to the 13‐oxo recovered catalysis. The experimental data for the debenzoylation reaction was supported by Gaussian‐accelerated molecular dynamics simulations that evaluated the conformational changes caused by different functional groups at C13 of the substrate. These findings also helped postulate where the 2‐O‐benzoylation reaction occurs on the paclitaxel pathway in nature. mTBT rearoylated the debenzoylated 13‐oxobaccatin III acceptors fastest with a non‐natural 3‐fluorobenzoyl CoA among the other aroyl CoA thioesters evaluated, yielding ~10 mg of each with excellent regioselectivity at laboratory scale. Reducing the 13‐oxo group to a hydroxyl yielded key modified baccatin III precursors (~10 mg at laboratory scale) of new‐generation taxoids.