Der 2,4,6-Triisopropylbenzolsulfonyl(Tip)-Rest, eine neue Schutzgruppe für die Guanidinofunktion von Arginin / The 2,4,6-Triisopropylbenzenesulfonyl Residue, a New Protecting Group for the Guanidino Function of Arginine

1987 ◽  
Vol 42 (12) ◽  
pp. 1591-1594 ◽  
Author(s):  
Hartmut Echner ◽  
Wolfgang Voelter

AbstractThe 2.4.6-triisopropylbenzenesulfonyl group is introduced in high yield into the guanidino function of arginine by the reaction of Na-protected arginine with 2.4.6-triisopropylbenzene-sulfonyl chloride. This protecting group was found to be cleaved by commonly used reagents used in peptide synthesis like methanesulfonic, trifluoromethanesulfonic acid or mixtures of tri-fluoroacetic with methanesulfonic or trifluoromethanesulfonic acid.

Tetrahedron ◽  
1973 ◽  
Vol 29 (4) ◽  
pp. 625-628 ◽  
Author(s):  
A.K. Koul ◽  
J.M. Bachhawat ◽  
B. Prashad ◽  
N.S. Ramegowda ◽  
A.K. Mathur ◽  
...  

1981 ◽  
Vol 46 (1) ◽  
pp. 286-299 ◽  
Author(s):  
František Brtník ◽  
Milan Krojidlo ◽  
Tomislav Barth ◽  
Karel Jošt

Preparation of oxytocin, arginine-vasopressin and its deamino-analogue serves as an example of use of 2,4,6-trimethylbenzyl group for protection of the cysteine sulfur atom in the peptide synthesis. This modified benzyl group is sufficiently stable under conditions of solvolytic removal of common amino-protecting groups and it can be cleaved off under mild conditions with liquid hydrogen fluoride or trifluoromethanesulfonic acid.


1990 ◽  
Vol 55 (1) ◽  
pp. 251-259 ◽  
Author(s):  
Louis A. Carpino ◽  
Beri J. Cohen ◽  
Yao Zhong Lin ◽  
Kenton E. Stephens ◽  
Salvatore A. Triolo

ChemInform ◽  
2010 ◽  
Vol 31 (16) ◽  
pp. no-no
Author(s):  
Antonella Leggio ◽  
Angelo Liguori ◽  
Anna Napoli ◽  
Carlo Siciliano ◽  
Giovanni Sindona

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