cyclo--5-methylheptanoyl>oxy-3-oxo-2,5-dimethylhexanoyl>-L-leucyl>-L-prolyl-N,O-dimethyl-L-tyrosyl>-L-threonyl> hydrochloride | 130008-93-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 肽模拟物
• 英文名称: cyclo--5-methylheptanoyl>oxy-3-oxo-2,5-dimethylhexanoyl>-L-leucyl>-L-prolyl-N,O-dimethyl-L-tyrosyl>-L-threonyl> hydrochloride
• 英文别名: cyclo-(O-{[N-((2S,3S,4S)-4-{(3S,4R,5S)-4-amino-3-[(triisopropylsilyl)oxy]-5-methylheptanoyl}oxy-3-oxo-2,5-dimethylhexanoyl)-L-leucyl]-L-prolyl-N,O-dimethyl-L-tyrosyl}-L-threonyl) hydrochloride；(3S,6S,8S,12S,13R,16S,17R,20S,23S)-16-amino-13-[(2S)-butan-2-yl]-12-hydroxy-20-[(4-methoxyphenyl)methyl]-6,17,21-trimethyl-3-(2-methylpropyl)-8-propan-2-yl-9,18-dioxa-1,4,14,21-tetrazabicyclo[21.3.0]hexacosane-2,5,7,10,15,19,22-heptone;hydrochloride
• CAS: 130008-93-4
• 化学式: C₄₂H₆₅N₅O₁₁*ClH
• 分子量: 852.466
• InChiKey: XSFBBAUCKZLPJO-FIXNCQTHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.34
• 重原子数：
  59
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.69
• 拓扑面积：
  224
• 氢给体数：
  5
• 氢受体数：
  12

反应信息

• 作为反应物：
  描述：

  cyclo--5-methylheptanoyl>oxy-3-oxo-2,5-dimethylhexanoyl>-L-leucyl>-L-prolyl-N,O-dimethyl-L-tyrosyl>-L-threonyl> hydrochloride 在 palladium on activated charcoal 2,4,6-三甲基吡啶 、 2,3,5-三甲基吡啶 、 氢气 作用下， 以 盐酸 、 二氯甲烷 、 溶剂黄146 、 异丙醇 为溶剂， 20.0 ℃ 、100.0 kPa 条件下， 反应 11.0h， 生成 (2S)-N-[(2R)-1-[[(3S,6S,8S,12S,13R,16S,17R,20S,23S)-13-[(2S)-丁烷-2-基]-12-羟基-20-[(4-甲氧基苯基)甲基]-6,17,21-三甲基-3-(2-甲基丙基)-2,5,7,10,15,19,22-七氧代-8-丙-2-基-9,18-二氧杂-1,4,14,21-四氮杂双环[21.3.0]二十六烷-16-基]氨基]-4-甲基-1-氧代戊烷-2-基]-1-[(2S)-2-羟基丙酰基]-N-甲基吡咯烷-2-甲酰胺
  参考文献：
  名称：

  Total Synthesis of the Didemnins; IV.¹Synthesis of the Peptolide Ring and Construction of the Side Chain

  摘要：

  描述了双德米宁 A、B 和 C (1-3) 的全合成，该合成能够以十克的量制备这些高细胞毒性环肽。 β-酮酸单元（羟基异戊酰）丙酸衍生物（Hip，6）是通过甲基丙二酸二苄酯的酰化以及随后通过三氯化硼的作用裂解苄基来制备的。通过 DCC 方法激活游离的 β-酮酸 6，并使其与亮氨酸酯 7 反应以提供酰胺 8。通过五氟苯酯方法在两个步骤中对线性肽 19 进行激活、脱保护和闭环。 -相系统在几分钟内以75%的产率产生了二德明宁环骨架。然后，通过将 Z-(R)-N-甲基亮氨酸活化为其 3-氰基-2-吡啶硫醇酯，然后与 Z-乳酰脯氨酸氯化物和 Z-乳酸反应，将各自的侧链轻松且高产率地连接到二聚宁环上酰氯。

  DOI：

  10.1055/s-1991-26448
• 作为产物：
  描述：

  cyclo--5-methylheptanoyl>oxy-3-oxo-2,5-dimethylhexanoyl>-L-leucyl>-L-prolyl-N,O-dimethyl-L-tyrosyl>-L-threonyl> 在 盐酸 作用下， 以 乙酸乙酯 为溶剂， 以90%的产率得到cyclo--5-methylheptanoyl>oxy-3-oxo-2,5-dimethylhexanoyl>-L-leucyl>-L-prolyl-N,O-dimethyl-L-tyrosyl>-L-threonyl> hydrochloride
  参考文献：
  名称：

  didemnins A、B 和 C 的全合成和结构研究

  摘要：

  Didemnins A、B 和 C 以立体控制的方式有效制备，产生常见的大环，并在单独的步骤中，在 L-苏氨酸的氨基上引入取代基作为光学纯单元。我们设想 L-亮氨酸和 HIP 基团 (2S,4S) 之间以及 L-苏氨酸和异司他汀 (3S,4R,5S) 之间的断开将提供两个单元：HIP-异司他汀单元 (I) 和四肽单元 (II) )

  DOI：

  10.1021/ja00177a030

文献信息

• Synthesis of New Didemnin B Analogs for Investigations of Structure/Biological Activity Relationships
  作者：Scott C. Mayer、Joshi Ramanjulu、Matthew D. Vera、Amy J. Pfizenmayer、Madeleine M. Joullie

  DOI：10.1021/jo00097a022

  日期：1994.9

  Modifications were introduced in the side chain of didemnin B to afford several analogs (1f-1j) for biological testing in order to identify the features responsible for the bioactivity of the natural products (1a-1c). To achieve our goal, two changes were made in the proline ring of the beta-turn side chain. Initially, a hydroxyl group was incorporated at the C-4 position of the ring to increase the polar nature of the molecule. Secondly, unsaturation was introduced at C-3 and C-4 to increase the rigidity of the ring and to provide a site for tritiation to follow the drug pathway in biological systems. Improvements were also introduced in the macrocycle construction to produce gram quantities of this unit (1d) for the preparation of the planned analogs. The linear precursor to the macrocycle was oxidized more effectively with 1,1,1-triacetoxy-1,1-dihydro-1,2-benziodoxol-3(1H)-one (Dess-Martin periodinane reagent), and cyclization yields were increased substantially by using a new coupling reagent, pentafluorophenyl diphenylphosphinate (FDPP). (1H-1,2,3-benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (BOP) and pentafluorophenyl trifluoroacetate were also used to improve other coupling reactions.
• First Total Synthesis of a Fluorescent Didemnin
  作者：Padma Portonovo、Xiaobin Ding、Michael S. Leonard、Madeleine M. Joullié

  DOI：10.1016/s0040-4020(00)00287-8

  日期：2000.6

  A dimethylaminocoumarin fluorophore was linked to didemnin A through a glycine tether. The resultant fluorescent didemnin will be used to study cellular localization as detected by fluorescence microscopy. (C) 2000 Elsevier Science Ltd. All rights reserved.
• Synthesis and biological evaluation of didemnin photoaffinity analogues
  作者：Matthew D. Vera、Amy J. Pfizenmayer、Xiaobin Ding、Deepika Ahuja、Peter L. Toogood、Madeleine M. Joullié

  DOI：10.1016/s0960-894x(01)00339-0

  日期：2001.7

  The synthesis of four benzophenone-containing analogues of the antiproliferative natural product didemnin B is presented. In vitro protein biosynthesis inhibition potency and antitumor activity were evaluated. The results indicate that all four analogues are biologically active and could serve as photoaffinity reagents for the study of receptor-binding interactions of didemnins. These analogues could also be useful in studying antitumor effects of didemnins. (C) 2001 Elsevier Science Ltd. All rights reserved.