A series of monoprotected glycerol homologues and triols were prepared in high overall yields (>90%) via the hydroboration-oxidation of the corresponding dienols. Hydroboration with disiamylborane and concomitant alkaline oxidation (NaOH, H2O2) was found to be a mild, high-yielding, and highly efficient method for the construction of a variety of glycerol homologues.
The specification generally relates to compounds of Formula (I):
and pharmaceutically acceptable salts and prodrugs thereof, where R
1
, R
4
, R
5
, R
6
, R
7
, Linker, X, Y, A, G, D and E have any of the meanings defined herein. This specification also relates to the use of such compounds and pharmaceutically acceptable salts and prodrugs thereof in methods of treatment of the human or animal body, for example in prevention or treatment of cancer. This specification also relates to processes and intermediate compounds involved in the preparation of such compounds and to pharmaceutical compositions containing them.
installing them at the C-terminal of peptides to increase the solubility in organic solvents and the reactivity of the peptidesduring liquid-phase peptidesynthesis (LPPS). They comprise a siloxy group containing tag and an arylsilyl group containing tag. The hydrophobicity of these tags is much greater than those of previously reported examples. The siloxy group containing tag is compatible with Fmoc-deprotection
开发了两种新的可回收硅基疏水标签,用于将它们安装在肽的 C 端,以增加在有机溶剂中的溶解度和液相肽合成 (LPPS) 过程中肽的反应性。它们包含含有甲硅烷氧基的标签和含有芳基甲硅烷基的标签。这些标签的疏水性比以前报道的例子要大得多。含有甲硅烷氧基的标签与Fmoc-脱保护条件(Fmoc-化学)和氢化条件(Cbz-化学)相容,而含有芳基甲硅烷基的标记对Fmoc-脱保护条件(Fmoc-化学)和Boc-脱保护条件具有抗性( Boc-化学)。使用含甲硅烷氧基的标签,受保护的 DRGN-1,采用线性合成结合一个收敛合成步骤成功制备了含有14个氨基酸残基的多肽。使用含有芳基甲硅烷基的标签,合成了含有 7 个丙氨酸残基的聚丙氨酸链。含有芳基甲硅烷基的标签也可以安装在 N 端,以将肽从 N 端延伸到 C 端。在这些硅基标签的帮助下,每一步的产率和产品在有机溶剂中的溶解度都非常好。
COMPOUNDS AND THEIR USE IN TREATING CANCER
申请人:AstraZeneca AB
公开号:EP3727355A1
公开(公告)日:2020-10-28
Synthesis of Glycerol Homologues
作者:Mark Trudell、Kiran Thota
DOI:10.1055/s-0033-1339185
日期:——
A series of monoprotected glycerol homologues and triols were prepared in high overall yields (>90%) via the hydroboration-oxidation of the corresponding dienols. Hydroboration with disiamylborane and concomitant alkaline oxidation (NaOH, H2O2) was found to be a mild, high-yielding, and highly efficient method for the construction of a variety of glycerol homologues.