Synthesis of an Uncharged Tetra-cyclopeptide Acting as a Transmembrane Carrier: Enhanced Cellular and Nuclear Uptake
摘要:
A small uncharged cydopeptide scaffold inspired by a natural product and designed to undergo postfunctionalizations was used as a new transmembrane vector. A bioactive and fluorescent triazole aminocoumarin was bound to this carrier to facilitate its moving across cell and subcellular membranes, and this led to an increase in its cell toxicity.
Synthesis of an Uncharged Tetra-cyclopeptide Acting as a Transmembrane Carrier: Enhanced Cellular and Nuclear Uptake
摘要:
A small uncharged cydopeptide scaffold inspired by a natural product and designed to undergo postfunctionalizations was used as a new transmembrane vector. A bioactive and fluorescent triazole aminocoumarin was bound to this carrier to facilitate its moving across cell and subcellular membranes, and this led to an increase in its cell toxicity.
Synthesis of L‐[5‐
<sup>11</sup>
C]Leucine and L‐α‐[5‐
<sup>11</sup>
C]Methylleucine via Pd
<sup>0</sup>
‐mediated
<sup>11</sup>
C‐Methylation and Microfluidic Hydrogenation: Potentiality of Leucine PET Probes for Tumor Imaging
Rapid reactions: Efficient synthesis of L-[5-11C]leucine and L-α-[5-11C]methylleucine was accomplished by Pd0-mediated 11C-methylation and microfluidic hydrogenation. PET imaging showed that L-α-[5-11C]methylleucine is a potentially useful probe for visualizing the tumor. The synthetic protocols for 11C-labeled leucine and its derivatives are applicable to human PET studies.
快速反应:L-[5- 11 C]亮氨酸和L-α-[5- 11 C]甲基亮氨酸的有效合成是通过Pd 0介导的11 C-甲基化和微流体氢化来完成的。PET 成像显示 L-α-[ 5-11 C]甲基亮氨酸是一种潜在有用的肿瘤可视化探针。11 C 标记的亮氨酸及其衍生物的合成方案适用于人类 PET 研究。
TRIAZOLE-CROSSLINKED AND THIOETHER-CROSSLINKED PEPTIDOMIMETIC MACROCYCLES
申请人:Aileron Therapeutics, Inc.
公开号:US20130210745A1
公开(公告)日:2013-08-15
Provided herein are peptidomimetic macrocycles and methods of using such macrocycles for the treatment of disease.
本文提供了肽类模拟大环化合物以及利用这些大环化合物治疗疾病的方法。
[EN] TRIAZOLE-CROSSLINKED AND THIOETHER-CROSSLINKED PEPTIDOMIMETIC MACROCYCLES<br/>[FR] MACROCYCLES PEPTIDOMIMÉTIQUES RÉTICULÉS PAR TRIAZOLE ET PAR THIOÉTHER
申请人:AILERON THERAPEUTICS INC
公开号:WO2013123267A1
公开(公告)日:2013-08-22
Provided herein are peptidomimetic macrocycles and methods of using such macrocycles for the treatment of disease.
本文提供了肽类模拟大环和使用这种大环治疗疾病的方法。
TRIAZOLE MACROCYCLE SYSTEMS
申请人:Aileron Therapeutics, Inc.
公开号:US20160031936A1
公开(公告)日:2016-02-04
The present invention provides novel peptidomimetic macrocycles and methods for their preparation and use, as well as amino acid analogs and macrocycle-forming linkers, and kits useful in their production.
α-Propargyl amino acid-derived optically active novel substituted polyacetylenes: Synthesis, secondary structures, and responsiveness to ions
作者:Hiromitsu Sogawa、Masashi Shiotsuki、Fumio Sanda
DOI:10.1002/pola.25975
日期:2012.5.15
Poly[(S)‐1a] and poly[(S)‐4b] also exhibited clear CD signals, which were different from those of the precursors, poly[(S)‐1] and poly[(S)‐4]. The solution‐state IR measurement revealed the presence of intramolecular hydrogenbonding between the carbamate groups of poly[(S)‐1] and poly[(S)‐1a]. The plus CD signal of poly[(S)‐1a] turned into minus one on addition of alkali hydroxides and tetrabutylammonium