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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.

Patent No.:

US 4981846 B1

PDFFull Text
Date of Patent:
Jan. 01, 1991

Filed:

Jul. 20, 1988

Crystalline l-carnosine zinc complex having antiulcer activity

Applicant:
Inventors:

Takefumi Matsukura, Minamikawachi, JP;

Tamiko Takahashi, Minoo, JP;

Yasuhiro Nishimura, Fujiidera, JP;

Masahiro Takaya, Yasu, JP;

Hajime Fujimura, Kyoto, JP;

Assignee:

Hamari Chemicals, Ltd., Osaka, JP;

Attorney:

Burgess, Ryan & Wayne

Primary Examiner:

Diana G Rivers

Int. Cl.
CPC ...
A61K / ; C07F / ; C07D / ;
U.S. Cl.
CPC ...
514184 ; 548101 ; 548104 ;
Abstract

A novel crystalline L-carnosine zinc complex is produced by reacting L-carnosine, a zinc salt and an alkali metal compound in an anhydrous or hydrous polar organic solvent. The crystalline L-carnosine zinc complex substantially corresponds to the formula C.sub.9 H.sub.12 N.sub.4 O.sub.3 Zn and has physical properties clearly different from the known amorphous L-carnosine zinc complex. As compared with the amorphous complex, the crystalline complex is very low in impurity, stable to heat and moisture, and easy to filtrate, and has higher anti-ulcer activity.

Find Patent Forward Citations

Matsukura, Takefumi. (1991). Crystalline l-carnosine zinc complex having antiulcer activity (U.S. Patent No. 4981846). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4981846

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