PROCESS FOR THE PREPARATION OF e-ALKOXYCARBONYLLYSINES AND THEIR ANALOGUES

Title:

PROCESS FOR THE PREPARATION OF e-ALKOXYCARBONYLLYSINES AND THEIR ANALOGUES

Document Type and Number:

WIPO Patent Application WO2008014811

Kind Code:

A8

Abstract:

A process for the preparation of ?-alkoxycarbonylamino-a-aminoacids and a,? orthogonally diprotected diaminoacids from a,?-diaminoacids using 1- alkoxycarbonylbenzotriazoles as protecting agents is disclosed. In an alternative embodiment, carbamoylating agents in the presence of benzotriazoles are used instead of 1-alkoxycarbonylbenzotriazoles. This reaction is preferably applied to the preparation of e- alkoxycarbonyllysines from lysine. A process for the preparation of t-butoxycarbonylbenzotriazoles and novel complexes of ?-alkoxycarbonylamino-a-aminoacids with benzotriazoles are also disclosed.

Inventors:

SERAFINI SIRO (IT)
MOTTERLE RICCARDO (IT)
BRASOLA ELENA (IT)

Application Number:

PCT/EP2006/007738

Publication Date:

June 05, 2008

Filing Date:

August 04, 2006

Export Citation:

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Assignee:

ITALIANA SINT SPA (IT)
SERAFINI SIRO (IT)
MOTTERLE RICCARDO (IT)
BRASOLA ELENA (IT)

International Classes:

C07C269/04; C07D249/18

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