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:
May. 19, 2026
Filed:
Dec. 23, 2022
Tokyo University of Agriculture and Technology, Tokyo, JP;
Jeol Ltd., Tokyo, JP;
Akiko Nagata, Tokyo, JP;
Yuka Mizumoto, Tokyo, JP;
Ryota Sakamoto, Tokyo, JP;
Kazuo Nagasawa, Tokyo, JP;
Masaki Takiwaki, Tokyo, JP;
Yoshikuni Kikutani, Tokyo, JP;
Koji Takahashi, Tokyo, JP;
Seketsu Fukuzawa, Tokyo, JP;
JEOL Ltd., Tokyo, JP;
Tokyo University of Agriculture and Technology, Tokyo, JP;
Abstract
The present invention is intended to provide a compound useful to analyze a vitamin D compound. The present invention provides an alkyne compound represented by Formula (I): where in Formula (I), A is a linear carbon chain having an alkynyl group at an end and having a vinyl group at another end; Xis CH orCH; Xis CHY, CDY,CHY,CDY, CO,CO, CO, orCO; m is an integer from 1 to 4; when m is 2 or more, Xs are identical or different; Y is H, D, NH,NH, OH,OH, SH, OR, O(CO)R, OSOH, OSONa, or a sugar substituent; when Formula (I) contains two or more Ys, Ys are identical or different; R is an alcohol protective group, an alkyl group, an alkenyl group, or an aryl group; Xis C orC; and at least one selected from the group consisting of X, X(s), and Xis modified with a stable isotope D,C,O, orN.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile