Patent number: 8784847
Abstract: Process for manufacturing 1-amino-1,3,3,5,5-pentamethylcyclohexane mesylate comprising step (i): (i) reacting 1-amino-1,3,3,5,5-pentamethylcyclohexane with methane sulfonic acid in a solvent or a mixture of two or more solvents selected from anisole, cumene, pentane, hexane, heptane, isooctane, methyl acetate, propyl acetate, isopropyl acetate, n-butyl acetate, isobutyl acetate, methyl ethyl ketone, methyl isopropylketone, methyl isobutyl ketone, dimethyl sulphoxide, tetrahydrofuran, methyltetrahydrofuran, 1,1-diethoxypropane, 1,1-dimethoxymethane, and 2,2-dimethoxypropane.
Type:
Grant
Filed:
April 16, 2010
Date of Patent:
July 22, 2014
Assignee:
Merz Pharma GmbH & Co. KGaA
Inventors:
Markus Henrich, Simona Negura, Gergely Tasi, Pal Kocsan, Federico Sbrogio, Michael Pyerin, Herbert Koller