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.:
Date of Patent:
Apr. 30, 1991
Filed:
May. 15, 1989
Applicant:
Inventors:
Yasuyuki Suzuki, Toyama, JP;
Noboru Takagawa, Toyama, JP;
Mikio Kawabata, Toyama, JP;
Mariko Hayashi, Toyama, JP;
Akiko Takagi, Toyama, JP;
Takako Wakamiya, Toyama, JP;
Isamu Saikawa, Toyama, JP;
Assignee:
Toyama Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560185 ; 564293 ; 564282 ;
Abstract
The process for producing bischoline-disulfonate derivatives of Formula (I) ##STR1## useful for enhancing the digestive function comprising reacting, in the presence of an organic solvent, a trimethylammonium salt derivative of Formula (II) ##STR2## wherein R.sup.1 and R.sup.2 are individually lower alkyl and X is a group removable by a disulfonic acid of Formula (III)