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:
Nov. 08, 2011
Filed:
Jan. 27, 2010
Mitsutaka Goto, Osaka, JP;
Mitsuhisa Yamano, Nishinomiya, JP;
Mitsutaka Goto, Osaka, JP;
Mitsuhisa Yamano, Nishinomiya, JP;
Takeda Pharmaceutical Company Limited, Osaka, JP;
Abstract
A production method of a compound represented by the formula wherein R, R, R, R, R, R, R, R, R, R, Rand Rare the same or different and each is a hydrogen atom and the like, and R, R, R, R, R, R, Rand Rare the same or different and each is a hydrogen atom and the like, or a salt thereof, which comprises reacting a compound represented by the formula wherein X is a leaving group and other symbols are as defined above, or a salt thereof, with a phosphine-borane complex represented by the formula wherein the symbols are as defined above, or a salt thereof, in a solvent in the presence of an amine and a nickel catalyst, is provided.
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