Solvay Sa

Solvay (societe Anonyme)

Solvay

Callens, Roland

Frank Becu

Roland Callens

Georges Blondeel

Marc Anteunis

Frans Borremans

Franky Fant

Use of an organic compound salt of general formulaA-XY&#x2003;&#x2003;(I)

Organic salts and their use as reagents in electrochemical reactions

Method for preparing a peptide or a peptide derivative comprising at least 2 enantiopure amino acids and at least one glycine molecule, comprising the reaction of a compound of general formula XCH&#x2014;C(&#x2550;O)&#x2014;HN-A-COOY (II) with a compound of general formula HNRR(III).

Method for synthesizing peptides comprising at least one glycine molecule

Ureins are obtained by reaction, in basic medium, between an N-(aryloxycarbonyl)diamino acid and a compound containing a free amino group. The chirality of the compounds is outstandingly well preserved.

Ureins derived from &#x3b1;, &#x3c9;, diamino acids and process for their preparation

Ureins are obtained by reaction, in basic medium, between an N,-(aryloxycarbonyl)diamino acid and a compound containing a free amino group. The chirality of the compounds is outstandingly well preserved.

Ureins derived from &agr;, &ohgr;-diamino acids and process for their preparation

Ureins are obtained by reaction, in basic medium, between an N.sup..omega. -(aryloxycarbonyl)diamino acid and a compound containing a free amino group. The chirality of the compounds is outstandingly well preserved.

Ureins derived from alpha, omega-diamono acids and process for their

Compounds having the general formula: ##STR1## in which R3 represents an aryl group which is unsubstituted or substituted by one or more alkyl groups containing 1 to 4 carbon atoms; R4 represents a hydrogen atom, a group for protecting the amino functional group, an amino acid or a peptide some of whose functional groups are optionally substituted by a protecting group or by an activating group; R5 represents a hydroxy group, a halogen atom, a group for protecting the carboxyl functional group, an activating group, an amino group, an amino acid or a peptide some of whose functional groups are optionally substituted by a protecting group or by an activating group; and n is an integer from 1 to 10.

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Zwevezele-Wingene, Belgium

Frank Becu