Process for preparing aryl-iminomethyl-carbamino acid esters

Details Process for preparing aryl-iminomethyl-carbamino acid esters Process for preparing aryl-iminomethyl-carbamino acid esters

2005-03-01

2005-03-01

Saeed, Kamal (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonate esters

C560S024000, C560S027000, C564S244000

Reexamination Certificate

active

06861547

ABSTRACT:
The invention relates to a process suitable for large-scale industrial use for preparing compounds of general formula (I)wherein:R1denotes a group selected from among methyl, ethyl, propyl, cyclopentyl, cyclohexyl, phenyl, benzyl and —C(Me2)phenyl, each of which is optionally mono-, di- or trisubstituted by hydroxy; and,R2denotes a group selected from among methyl, ethyl, propyl and benzyl.

REFERENCES:
patent: 5246965 (1993-09-01), Main
patent: 5731332 (1998-03-01), Anderskewitz et al.
patent: 0 518 818 (1992-12-01), None
patent: WO 96 02497 (1996-02-01), None

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