Method of obtaining urethane-protected N-carboxyanhydrides...

Details Method of obtaining urethane-protected N-carboxyanhydrides... Method of obtaining urethane-protected N-carboxyanhydrides...

2004-08-17

2010-02-23

Qazi, Sabiha (Department: 1612)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07667051

ABSTRACT:
The invention relates to a method of preparing urethane-protected N-carboxyanhydrides of alpha amino acids. The inventive method enables the synthesis of urethane-protected N-carboxyanhydrides of alpha amino acids in the presence of a catalytic quantity of triethylene diamine without the addition of a tertiary amine-type base.

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