The 5,6- and 4,5-Benzo Derivatives of 1-Hydroxy-7-azabenzotriazole
摘要:
[GRAPHICS]Syntheses of the two benzo derivatives of HOAt are described. Conversion of the two isomers to the corresponding onium-style coupling reagents gave in one case a guandinium species 14 and in the other, presumably as a result of steric factors, a uronium species 15. The two systems are compared as to their effectiveness in peptide coupling processes.
The 5,6- and 4,5-Benzo Derivatives of 1-Hydroxy-7-azabenzotriazole
作者:Louis A. Carpino、Fernando J. Ferrer
DOI:10.1021/ol016063j
日期:2001.9.1
[GRAPHICS]Syntheses of the two benzo derivatives of HOAt are described. Conversion of the two isomers to the corresponding onium-style coupling reagents gave in one case a guandinium species 14 and in the other, presumably as a result of steric factors, a uronium species 15. The two systems are compared as to their effectiveness in peptide coupling processes.
Uronium and immonium salts for peptide coupling
申请人:——
公开号:US20030125561A1
公开(公告)日:2003-07-03
The present invention is directed to salts of the formula:
1
or N-oxides thereof, and their use in preparing an amide.