IP Library › Granted Patent US 6,861,547
Granted Patent B2
US 6,861,547 · App. 10/138,955 · Granted Mar 1, 2005

Process for preparing aryl-iminomethyl-carbamino acid esters

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Quick Facts
Patent No.
US 6,861,547
App. No.
10/138,955
Granted
Mar 1, 2005
Kind
B2
Abstract

The invention relates to a process suitable for large-scale industrial use for preparing compounds of general formula (I) wherein: R 1 denotes a group selected from among methyl, ethyl, propyl, cyclopentyl, cyclohexyl, phenyl, benzyl and —C(Me 2 )phenyl, each of which is optionally mono-, di- or trisubstituted by hydroxy; and, R 2 denotes a group selected from among methyl, ethyl, propyl and benzyl.

Claims (4)

1. A compound of the formula (IVA) or the tautomeric form thereof

wherein

R 1 denotes a group selected from among methyl, ethyl, propyl, cyclopentyl, cyclohexyl, phenyl, benzyl and —C(Me 2 )phenyl, each of which may be mono-, di- or trisubstituted by hydroxy; and

R 2 denotes a group selected from among methyl, ethyl, propyl and benzyl.