THE SYNTHESIS OF THE PROTEINS 29 



Dialanyl-cystine (o-bromopropionylbromide + cystine). 



Dileucyl-cystine (o-bromisocapronylchloride + cystine). 



Aspargyl-dialanine (fumarylchloride + alanine ester). 



Leucyl-alanyl-glycine A\ 



Leucyl-alanyl-glycine B /( a - bromisoca P ron y lchIonde + alanyl-glycme). 



Alanyl-leucyl-glycine (a-bromopropionylbromide + leucyl-glycine). 



Glycyl-leucyl-alanine (chloracetylchloride + leucyl-alanine). 



Leucyl-alanyl-alanine A ) 



Leucyl-alanyl-alanine B [ (-bromisocapronylchloride + alanyl-alanine). 



Dialanyl-alanine (o-bromopropionylbromide + alanyl-alanine). 

 1-Alanyl-glycyl-glycine (1-bromopropionylchloride + glycyl-glycine ester). 

 1-Alanyl-glycyl-glycine (1-bromopropionylchloride + glycyl-glycine). 

 d-Alanyl-glycyl-1-tyrosine (d-a-bromopropionylchloride + glycyl-1-tyrosine). 

 1-Leucyl-glycyl-d-tryptophane (d-o-bromisocapronylchloride + glycyl-d-tryptophane). 



Tetrapeplides. 



Trlglycyl-glycine (chloracetylchloride + diglycyl-glycine). 

 Dileucyl-glycyl-glycine (a-bromisocapronylchloride + leucyl-glycyl-glycine). 

 1-Leucyl-diglycyl-glycine (d-o-bromisocapronylchloride + diglycyl-glycine). 



Pentapeptides, 

 Tetraglycyl-glycine (chloracetylchloride + triglycyl-glycine). 



