Identifying new lead structures to enhance tolerance towards drought stress via high-throughput screening giving crops a quantum of solace
摘要:
Novel synthetic lead structures interacting with RCAR/(PYR/PYL) receptor proteins were identified based on the results of a high-throughput screening campaign of a large compound library followed by focused SAR studies of the three most promising hit clusters. Whilst indolinylmethyl sulfonamides 8y,z and phenylsulfonyl ethylenediamines 9y,z showed strong affinities for RCAR/ (PYR/PYL) receptor proteins in wheat, thiotriazolyl acetamides 7f,s exhibited promising efficacy against drought stress in vivo (wheat, corn and canola) combined with confirmed target interaction in wheat and arabidopsis thaliana. Remarkably, binding affinities of several representatives of 8 and 9 were on the same level or even better than the essential plant hormone abscisic acid (ABA).
A Pd- and norbornene-catalyzed domino procedure has been developed to synthesize indoline compounds. This reaction provides efficient access to indolines by employing aryl iodides with aziridines as new electrophiles. The transformation is scalable and tolerates a range of functional groups.
Development of Macrocyclic Mn(II)−Bispyridine Complexes as pH‐Responsive Magnetic Resonance Imaging Contrast Agents
作者:Xiaojuan Shen、Yan Pan、Guohai Liang
DOI:10.1002/ejic.202200786
日期:——
efficient response to pH stimuli, and easy modulation characteristics were synthetized in this study. These complexes are considered ideal candidates for use as acidic microenvironment-specific MRI contrastagents.