86645-64-9Relevant articles and documents
MIXED ANHYDRIDES IN PEPTIDE SYNTHESIS. A STUDY URETHANE FORMATION WITH A CONTRIBUTION ON MINIMIZATION OF RACEMIZATION
Chen, Francis M. F.,Lee, Young,Steinauer, Rene,Benoiton, N. Leo
, p. 613 - 618 (2007/10/02)
A study of the factors contributing to urethane formation during the coupling of N-alkoxycarbonylamino acids with an amino acid ester by the mixed carboxylic-carbonic acid anhydride method has been carried out, using nuclear magnetic resonance spectroscop
Mixed Anhydrides in Peptide Synthesis. Reduction of Urethane Formation and Racemization Using N-Methylpiperidine as the Tertiary Amine Base
Chen, Francis M. F.,Steinauer, Rene,Benoiton, N. Leo
, p. 2939 - 2941 (2007/10/02)
The side reactions of urethane formation and racemization accompanying couplings by the mixed anhydride method are reduced when N-methylpiperidine is used as base, the best results being achieved in dichloromethane.