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. 19, 2018
Filed:
Sep. 24, 2014
Meiji Seika Pharma Co., Ltd., Chuo-ku, Tokyo, JP;
Takao Abe, Kanagawa, JP;
Takeshi Furuuchi, Kanagawa, JP;
Yoshiaki Sakamaki, Kanagawa, JP;
Nakako Mitsuhashi, Kanagawa, JP;
MEIJI SEIKA PHARMA CO., LTD., Tokyo, JP;
Abstract
A process for producing a diazabicyclooctane derivative represented by Formula (IV) and intermediates thereof by carrying out the following steps: wherein P is an NH protecting group capable of being removed with acid; Ris 2,5-dioxopyrrolidin-1-yl, 1,3-dioxo-3a,4,7,7a-tetrahydro-1H-isoindol-2(3H)-yl, 1,3-dioxohexahydro-1H-isoindol-2(3H)-yl, or 3,5-dioxo-4-azatricyclo[5.2.1.0]dec-8-en-4-yl; Ris hydrogen, ClCO— or ClCOCO—; Ris Calkyl or heterocyclyl, or forms a 3- to 7-membered heterocyclic ring together with the —O—NH— to which it is attached; and OBn is benzyloxy.