The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 02, 2021

Filed:

Apr. 27, 2018
Applicant:

Wuhan Ll Science and Technology Development Co., Ltd., Hubei, CN;

Inventors:

Bo Zhang, Hubei, CN;

Xiaohua Ding, Hubei, CN;

Dongcheng Dai, Hubei, CN;

Sijun Lei, Hubei, CN;

Xueming Liu, Hubei, CN;

Panpan Duan, Hubei, CN;

Yongkai Chen, Hubei, CN;

Chaodong Wang, Hubei, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 295/027 (2006.01); C07C 229/34 (2006.01); C07C 227/20 (2006.01); C07C 231/02 (2006.01); C07C 231/12 (2006.01);
U.S. Cl.
CPC ...
C07C 229/34 (2013.01); C07C 227/20 (2013.01); C07C 231/02 (2013.01); C07C 231/12 (2013.01);
Abstract

The present disclosure belongs to the field of chemical synthesis, and in particular relates to an ammonium carboxylate compound, a crystalline form and an amorphous form, and a preparation method thereof. The present disclosure prepares the compound and the crystalline form I and its single crystal, amorphous form and crystalline form II thereof. The compound, the crystalline forms, the single crystal and the amorphous form can stably exist and exhibit good solid forms, suitable for medicine-making. Furthermore, these products possess high purity and less single impurity. Moreover, the preparation methods of the present disclosure are easy to implement due to the simple processes with mild reaction conditions, and could produce products of high yield and high purity without complex purification steps. Furthermore, the preparation methods may facilitate safety, environmental protection, and industrial production.


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