Herbicidal 3-isoxazolidinones and hydroxamic acids
申请人:FMC Corporation
公开号:US04405357A1
公开(公告)日:1983-09-20
Novel 3-isoxazolidinone compounds and novel hydroxamic acid intermediates from which they are prepared exhibit herbicidal activity to grassy and broad-leaf plant species while leaving legumes, especially soybeans, unaffected. The preparation and herbicidal activity of the compounds is exemplified.
N-Substituted N-thioformylhydroxylamine derivatives represented by the general formula [chemical formula] (I) were synthesized and examined for antimicrobial activities. The synthesis was performed by the replacement of the carbonyl in an appropriate N-sub-stituted N-formylhydroxylamine with sulfur. These compounds were analogues of an antibiotic thioformin (II), N-methyl N-thioformylhydroxylamine, which was isolated as cupric complex (antibiotic YC-73 (III)) from a culture filtrate of Pseudomonas sp. The derivatives synthesized showed broad antimicrobial activities in vitro similar to that of the original antibiotic, particularly against gram-positive bacteria.
AZETIDINE COMPOUNDS, COMPOSITIONS AND METHODS OF USE
申请人:Hoffmann-La Roche Inc.
公开号:US20140323462A1
公开(公告)日:2014-10-30
Provided are compounds of Formula I,
R
1
-L
1
-A-L
2
-R
2
(I),
and stereoisomers, tautomers and pharmaceutically acceptable salts thereof, wherein A, L
1
, L
2
, R
1
and R
2
are defined herein. The present invention also provides a pharmaceutical composition and methods of using such compounds. The compounds are useful for therapy and/or prophylaxis in a patient, and in particular to inhibitors of Soluble Epoxide Hydrolase (sEH).
HIGH-PURITY THERMOSTABLE CRYSTAL FORM OF SUBSTITUTED 3-ISOXAZOLIDINONE COMPOUND, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
申请人:Zhejiang Zhuji United Chemicals Co., Ltd
公开号:EP3971170A1
公开(公告)日:2022-03-23
The application provides a high-purity thermostable crystal form of a substituted 3 -isoxazolidinone compound, a preparation method therefor and an application thereof. The High-purity thermostable crystal form is prepared by a particular method of the present technology and is determined by single-crystal X-ray diffraction as an orthorhombic crystal, featuring a space group of P212121 and lattice parameters of a=9.2301(2) Å, b=11.0751(3) Å, c=12.7554(3)A, α=90°, β=90°, and γ=90°. The orthorhombic crystal can be conveniently applied in preparation of agrochemical formulations, such as a suspension concentrate and a water dispersible granule, and the new formulations prepared have a better herbicidal activity and crop safety.
本申请提供了一种取代 3-异噁唑烷酮化合物的高纯恒温晶型、其制备方法及其应用。该高纯度恒温晶体采用本技术的特定方法制备,经单晶 X 射线衍射确定为正方晶系晶体,其空间群为 P212121,晶格参数为 a=9.2301(2) Å、b=11.0751(3) Å、c=12.7554(3)A、α=90°、β=90° 和 γ=90°。该正方晶体可方便地用于制备农用化学品制剂,如悬浮浓缩剂和水分散粒剂,制备的新制剂具有更好的除草活性和作物安全性。