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:
Jun. 28, 1983
Filed:
Dec. 29, 1980
Applicant:
Inventors:
Susumu Misaki, Osaka, JP;
Masahiro Suefuji, Osaka, JP;
Tadahiko Tsushima, Osaka, JP;
Hiroshi Tanida, Osaka, JP;
Assignees:
Daikan Kogyo Co., Ltd., Osaka, JP;
Shionogi and Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
546296 ; 546298 ; 546300 ; 546301 ; 546302 ; 546304 ; 546307 ; 546310 ; 546311 ; 546312 ; 546314 ; 546315 ; 546341 ; 560 23 ; 560 51 ; 560174 ; 562434 ; 562437 ; 562438 ; 562459 ; 562577 ;
Abstract
A 3-substituted-3-fluoropyruvic acid and its ester and salt of the formula: ##STR1## wherein R is a lower alkyl group, a lower alkanoyl group, a fluorinated lower alkanoyl group, a substituted or unsubstituted phenyl group or a substituted or unsubstituted pyridyl group and R' is a hydrogen atom, an ester-forming residue or a salt-forming residue, and their production.