Title:
HIGH-PURITY THERMOSTABLE CRYSTAL FORM OF SUBSTITUTED 3-ISOXAZOLIDINONE COMPOUND, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/227875
Kind Code:
A1
Abstract:
The present invention provides a high-purity thermostable crystal form of substituted 3-isoxazolidinone compound, preparation method therefor, and application thereof. The high-purity thermostable crystal form is prepared by a particular method of the present technology, is detected to be orthorhombic by means of X single crystal diffraction, and has a space group of P21 21 21 and cell parameters of a=9.2301(2)Å, b=11.0751(3)Å, c=12.7554(3)Å, α=90°, β=90°, and γ=90°. The orthorhombic crystal can be easily used in the preparation of pesticide formulations, such as a suspension and a water-dispersible granule, and the prepared new formulation has more excellent herbicidal activity and safety.
Inventors:
CHEN BANGCHI (CN)
GUAN BAOCHUAN (CN)
SHENG QIUJU (CN)
ZHANG HONGWEI (CN)
XU XIANBO (CN)
ZHANG YONGLIN (CN)
XU XIAOYAN (CN)
MU HAIPING (CN)
ZHANG ZHUOYA (CN)
GUAN BAOCHUAN (CN)
SHENG QIUJU (CN)
ZHANG HONGWEI (CN)
XU XIANBO (CN)
ZHANG YONGLIN (CN)
XU XIAOYAN (CN)
MU HAIPING (CN)
ZHANG ZHUOYA (CN)
Application Number:
PCT/CN2019/086559
Publication Date:
November 19, 2020
Filing Date:
May 13, 2019
Export Citation:
Assignee:
ZHEJIANG ZHUJI UNITED CHEMICALS CO LTD (CN)
International Classes:
C07D261/04; A01N43/80; A01P7/04
Domestic Patent References:
| WO2019030177A1 | 2019-02-14 | |||
| WO2012148689A2 | 2012-11-01 | |||
| WO2017025418A1 | 2017-02-16 | |||
| WO2019030177A1 | 2019-02-14 |
Foreign References:
| US4405357A | 1983-09-20 | |||
| CN106455569A | 2017-02-22 | |||
| CN103458691A | 2013-12-18 | |||
| US4405357A | 1983-09-20 | |||
| CN109068631A | 2018-12-21 | |||
| CN201910188658A | 2019-03-13 | |||
| CN109706672A | 2019-05-03 | |||
| US4405357A | 1983-09-20 | |||
| AU2019446196A |
Other References:
HILFIKER,ROLF., DE PAUL SUSAN M; SZELAGIEWICZ MARTIN: "Chapter 11 - Polymorphic Screening; Polymorphism in the Pharmaceutical Industry", 2006, WILEY-VCH VERLAG & CO. KGAA, article "Approaches to polymorphism screening", pages: 1 - 12, XP093018900
See also references of EP 3971170A4
See also references of EP 3971170A4
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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