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:
Aug. 13, 2019
Filed:
Mar. 06, 2018
Bracco Imaging S.p.a., Milan, IT;
Elisa Battistini, Valperga, IT;
Federica Buonsanti, Turin, IT;
Daniela Imperio, Gattinara, IT;
Luciano Lattuada, Cassina De'Pecchi, IT;
Roberta Napolitano, Albiano D'Ivrea, IT;
BRACCO IMAGING S.P.A., Milan, IT;
Abstract
The present invention discloses a process for recovery of a boronic acid of formula R—B(OH), wherein Ris selected from the group consisting of C-Clinear or branched alkyl, C-Ccycloalkyl, and Caryl, optionally substituted with a group selected from the group consisting of methyl, ethyl, n-propyl, i-propyl, n-butyl, sec-butyl, t-butyl, and phenyl, comprising admixing the boronic acid with a water-immiscible organic solvent in a weight ratio between the boronic acid and the water-immiscible organic solvent from 1:10 to 1:20, adding an aqueous solution to a final pH of neutral, and partitioning the boronic acid into an organic water-immiscible phase and recovery of the organic water-immiscible phase.