Expanding the chemical space of sp3-enriched 4,5-disubstituted oxazoles via synthesis of novel building blocks
作者:Evgeniy Y. Slobodyanyuk、Andrii A. Andriienko、Bohdan V. Vashchenko、Dmitriy M. Volochnyuk、Sergey V. Ryabukhin、Oleksandr O. Grygorenko
DOI:10.1007/s10593-019-02475-9
日期:2019.5
An efficient approach to the preparation of novel sp3-enriched 4,5-disubstituted oxazoles bearing a functional group at the C-4 position is described. The method commenced with synthesis of ethyl oxazole-4-carboxylates (13 examples, 63–99% yield), with subsequent function insertion to the heterocyclic core by late-stage functional group transformation. The LiBH4-mediated reduction of ethyl oxazole-4-carboxylates
Widely Exploited, Yet Unreported: Regiocontrolled Synthesis and the Suzuki-Miyaura Reactions of Bromooxazole Building Blocks
作者:Vitalii V. Solomin、Dmytro S. Radchenko、Evgeniy Y. Slobodyanyuk、Oleksandr V. Geraschenko、Bohdan V. Vashchenko、Oleksandr O. Grygorenko
DOI:10.1002/ejoc.201900032
日期:2019.5.15
An approach to synthesis of all isomeric bromooxazoles was optimized and its scope was extended to all three isomeric parents, as well as various alkyl‐ and aryl‐substituted bromooxazoles. The direct regiocontrolled lithiation followed by reaction with electrophilic bromine source was common and led exclusively to the target substituted 2‐, 4‐, and 5‐bromooxazoles on multigram scale. The utility of
[EN] ANALOGS OF DEHYDROPHENYLAHISTINS<br/>[FR] ANALOGUES DE DÉSHYDROPHÉNYLAHISTINES
申请人:NEREUS PHARMACEUTICALS INC
公开号:WO2011084962A1
公开(公告)日:2011-07-14
Analogs of dehydrophenylahistins are disclosed as are methods for making such compounds. Compositions and methods for treating various disease conditions including cancer and non-cancer diseases associated with vascular proliferation are also disclosed.
Development of MBRI-001, a deuterium-substituted plinabulin derivative as a potent anti-cancer agent
作者:Zhongpeng Ding、Hejuan Cheng、Shixiao Wang、Yingwei Hou、Jianchun Zhao、Huashi Guan、Wenbao Li
DOI:10.1016/j.bmcl.2017.01.096
日期:2017.3
targeting microtubule of cancer cells, has been currently tried in its phase III clinical study. However, low efficacy caused by poor pharmacokinetic (PK) properties has been considered to be the main obstacle to approved by the Food and Drug Administration. Herein, we introduced a deuterium atom as an isostere in its structure to become a new compound named (MBRI-001, No. 9 in a series of deuterium-substituted