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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.:

US 10442834 B1

PDFFull Text
Date of Patent:
Oct. 15, 2019

Filed:

Oct. 02, 2015

Deprotection method

Applicant:

Ajinomoto Co., Inc., Tokyo, JP;

Inventors:

Hironao Sajiki, Gifu, JP;

Yasunari Monguchi, Gifu, JP;

Assignee:

AJINOMOTO CO., INC., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Christina Bradley

Assistant Examiner:

Zachary J Miknis

Int. Cl.
CPC ...
A61K 38/00 (2006.01); C07K 5/00 (2006.01); C07K 7/00 (2006.01); C07K 16/00 (2006.01); C07K 17/00 (2006.01); C07K 2/00 (2006.01); C07K 4/00 (2006.01); C07K 14/00 (2006.01); A61K 38/04 (2006.01); A61K 38/06 (2006.01); C07K 1/02 (2006.01); C07C 319/20 (2006.01); C07C 321/14 (2006.01); C07C 321/28 (2006.01); C07C 53/16 (2006.01); C07K 5/062 (2006.01); C07K 5/087 (2006.01); C07K 5/103 (2006.01);
U.S. Cl.
CPC ...
C07K 1/02 (2013.01); C07C 53/16 (2013.01); C07C 319/20 (2013.01); C07C 321/14 (2013.01); C07C 321/28 (2013.01); C07K 5/0606 (2013.01); C07K 5/06026 (2013.01); C07K 5/06069 (2013.01); C07K 5/0812 (2013.01); C07K 5/1008 (2013.01); C07K 5/1013 (2013.01); Y02P 20/55 (2015.11);
Abstract

The present invention provides a method of efficiently deprotecting a protected organic compound by catalytic hydrogenation. Specifically, the present invention provides a method of deprotecting an organic compound having at least one functional group selected from the group consisting of a carboxy group, an amino group and a hydroxy group, which is protected by a protecting group represented by the formula (I):R—C(R)(R)-L-  (I)[wherein Ris an aryl group optionally having substituent(s), Rand Rare each independently, a hydrogen atom or an aryl group optionally having substituent(s), and Lis a single bond, —O—CO— or —O—CH—], comprising hydrogenation in the presence of a metal catalyst and halogenated acetic acid.

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