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:
Apr. 28, 2026
Filed:
Nov. 08, 2021
Stella Pharma Corporation, Osaka, JP;
Yusuke Murata, Osaka, JP;
Yoichiro Ohta, Osaka, JP;
Hiroshi Takenaka, Osaka, JP;
Kensuke Suzuki, Osaka, JP;
STELLA PHARMA CORPORATION, Osaka, JP;
Abstract
A method for producing 4-borono-L-phenylalanine and its intermediates is provided. The method is for producing a substituted phenyl compound represented by formula (II) from a substituted phenyl compound represented by formula (I). The method comprises a first step in which the compound represented by formula (I) reacts with a linear or branched C1-C10 alkylmagnesium halide in the presence of a metal halide; and a second step in which a boronic acid ester or boronic acid amide reacts with the compound obtained in said first step. The method also can comprise a step of deprotecting the compound of formula (II) obtained in the second step.