[EN] PYRROLE ANTIFUNGAL AGENTS<br/>[FR] AGENTS ANTIFONGIQUES À BASE DE PYRROLE
申请人:F2G LTD
公开号:WO2009130481A1
公开(公告)日:2009-10-29
The invention provides compounds of formula (I), and pharmaceutically and agriculturally acceptable salts thereof; wherein: R1, R2, R3, R4, R5, R6, A1, L1 and n are as defined herein. These compounds and their pharmaceutically acceptable salts are useful in prevention or treatment of a fungal disease. Compounds of formula (I), and agriculturally acceptable salts thereof, may also be used as agricultural fungicides.
An Efficient and Chemoselective Method for Oximination of β-Diketones Under Mild and Heterogeneous Conditions
作者:Mohammad Zolfigol
DOI:10.3390/60800694
日期:——
A combination of oxalic acid dihydrate and sodium nitrite in the presence of wet SiO2 was used as an effective nitrosating agent for the nitrosation of β-diketones to their corresponding α-oximinoketones in moderate to excellent yields under mild and heterogenous conditions.
Tandem C–N Bond Formation through Condensation and Metal-Free <i>N</i>-Arylation: Protocol for Synthesizing Diverse Functionalized Quinoxalines
作者:Yan-Xiao Jiao、Ling-Ling Wu、Hai-Miao Zhu、Jiang-Ke Qin、Cheng-Xue Pan、Dong-Liang Mo、Gui-Fa Su
DOI:10.1021/acs.joc.7b00011
日期:2017.4.21
Diverse functionalized quinoxalines were synthesized in good yields from arylamines and readily available β-keto oximes through condensation and metal-free N-arylation. The reaction was compatible with various functional groups, such as halides, cyano, and esters. A mechanism was proposed based on the experimental results. These quinoxalines were easily obtained on a gram scale and converted to various
Biocatalytic Synthesis of Enantiopure β-Methoxy-β-arylalanine Derivatives
作者:Shiming Fan、Shouxin Liu、Hubo Zhang、Ying Liu、Yihuang Yang、Longyi Jin
DOI:10.1002/ejoc.201402470
日期:2014.9
β-hydroxy-β-arylalanine and β-methoxy-β-arylalaninederivatives, which occur widely in marine nature products, were stereoselectively synthesized with 99 % ee values. The two erythro isomers were prepared by L- or D-aminoacylase-catalyzed resolution of the corresponding N-acetyl derivatives, whereas the two threo isomers were obtained only by D-aminoacylase-catalyzed resolution of the derivatives. erythro-β-Hydroxy-β-arylalanine
Copper catalyzed access to functionalized oxazoles from oximes via carbenoids
作者:Anugula Nagaraju、K. Sandeep、K.C. Kumara Swamy
DOI:10.1016/j.tetlet.2018.05.004
日期:2018.6
straightforward synthesis of diverse oxazoles from oximes possessing a vicinal carbonyl group has been achieved by treatment of the latter with terminal diazo compounds like ethyl/benzyl diazoacetate and diazoacetophenone (which act as carbenoids) in one pot. At least two reducible functional groups (two ester groups or cyano + ester) are simultaneously introduced in one step. This reaction involves expulsion