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:
Jan. 24, 2023
Filed:
May. 10, 2019
Applicant:
Nippon Shinyaku Co., Ltd., Kyoto, JP;
Inventors:
Yutaro Kotobuki, Tsukuba, JP;
Fumiya Urabe, Tsukuba, JP;
Assignee:
NIPPON SHINYAKU CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H 21/00 (2006.01); C07H 1/00 (2006.01);
U.S. Cl.
CPC ...
C07H 21/00 (2013.01); C07H 1/00 (2013.01);
Abstract
A method for subjecting a compound [A] having a hydroxyl group or a primary or secondary amino group and a compound [B] having a substituent containing a phosphorus atom to a condensation reaction to prepare a compound [C] represented by the following general formula [C]: wherein the condensation reaction is carried out in a mixed solvent containing a polar solvent and a halogen solvent as a reaction solvent.