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:
Oct. 29, 2013
Filed:
Jun. 19, 2009
Applicants:
Masatoshi Murakata, Tokyo, JP;
Takuma Ikeda, Tokyo, JP;
Nobuaki Kimura, Tokyo, JP;
Akira Kawase, Tokyo, JP;
Masahiro Nagase, Tokyo, JP;
Keisuke Yamamoto, Gotenba, JP;
Inventors:
Masatoshi Murakata, Tokyo, JP;
Takuma Ikeda, Tokyo, JP;
Nobuaki Kimura, Tokyo, JP;
Akira Kawase, Tokyo, JP;
Masahiro Nagase, Tokyo, JP;
Keisuke Yamamoto, Gotenba, JP;
Assignee:
Chugai Seiyaku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 313/00 (2006.01); C07D 315/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a process for preparing a spiroketal derivative, via an intermediate represented by Formula (VI): wherein variable groups and numbers are as defined in the specification, which can be produced from dihalobenzene derivatives in one pot reaction.