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. 22, 1997
Filed:
Jun. 06, 1995
Toshimitsu Niwa, Kounan, JP;
Koichi Niimura, Warabi, JP;
Minoru Ohara, Tokyo, JP;
Sigemi Tomiyama, Matsudo, JP;
Kureha Chemical Industry Co., Ltd., Tokyo, JP;
Abstract
For determining 3-deoxyglucosone derivatives which are intermediate metabolites of the Maillard reaction in body fluids such as blood, urine, serum, plasma and the like in gas chromatography/mass spectrometry, .sup.13 C-labelled compounds or .sup.14 C-labelled compounds are useful as an internal standard substance. More specifically, 3-deoxyglucosone derivatives having the formula (I): ##STR1## wherein *C is .sup.13 C or .sup.14 C, X is O or N--OR wherein R is Me, Et or H, and Y is SiMe.sub.3 or SiMe.sub.2 tBu, and their production are provided. The measurement of 3-deoxyglucosone derivatives is useful in diagnosing diseases such as diabetes and diseases complicated with diabetes, including diabetic nephrosis, various renal disorders, renal insufficiency, metabolic diseases of carbohydrate and the like.