Accessing New 5‐α‐(3,3‐Disubstituted Oxindole)‐Benzylamine Derivatives from Isatin: Stereoselective Organocatalytic Three Component Petasis Reaction
作者:Carolina S. Marques、Patrick McArdle、Andrea Erxleben、Anthony J. Burke
DOI:10.1002/ejoc.202000334
日期:2020.6.30
oxindole derivatives, salicylaldehydes, and secondary amines was established through BINOL‐catalyzed Petasis reaction affording new 5‐α‐(3‐substituted‐oxindole)‐benzylamine derivatives in moderate to excellent yields, moderate to excellent enantio‐ and diastereoselectivities and good reaction scope.
The present invention is directed to compounds, compositions, and methods for inhibiting drug-efflux pumps. The compounds, compositions, and methods can be used for enhancing the activity of therapeutic agents that are efflux pump substrates and for the treatment of drug-resistant diseases or disorders, such as microbial infections and cancers.
Easy access to Ugi-derived isatin-peptoids and their potential as small-molecule anticancer agents
作者:Carolina S. Marques、Aday González-Bakker、José M. Padrón、Anthony J. Burke
DOI:10.1039/d2nj03627d
日期:——
An amide bond is one of the most important functional motifs in chemistry and biology due to its presence in countless biological structures and is of significant synthetic interest. Small-molecule amides are remarkable scaffolds for designing new drugs. Here, we report a new Ugi4CR approach using 5-amino-3,3-protected-oxindole derivatives, carboxylic acids (and nitrophenols), aldehydes (and ketones)
酰胺键是化学和生物学中最重要的功能基序之一,因为它存在于无数的生物结构中,并且具有重要的合成意义。小分子酰胺是设计新药的重要支架。在这里,我们报告了一种新的 Ugi4CR 方法,使用 5-amino-3,3-protected-oxindole 衍生物、羧酸(和硝基酚)、醛(和酮)和异氰化物来创建 Ugi 衍生的靛红拟肽库,中等至在一步、清洁和快速的可持续反应过程中,产量极佳。该文库针对人类实体瘤细胞系进行了测试。结果允许建立一些初步的构效关系。最活跃的衍生物显示 GI 50值在 0.06–2.3 μM 范围内。
FARNESYL TRANSFERASE INHIBITING 4-SUBSTITUTED QUINOLINE AND QUINAZOLINE DERIVATIVES