Angiotensin II Analogues. Part II. Synthesis and incorporation of the sulfur-containing aromatic amino acids:L-(4?-SH)Phe,L-(4?-SO2NH2)Phe,L-(4?-SO3?)Phe andL-(4?-S-CH3)Phe
作者:Emanuel Escher、Michel Bernier、Paul Parent
DOI:10.1002/hlca.19830660504
日期:1983.7.27
L-Phenylalanine has been treated with chlorosulfonic acid and the product was either hydrolyzed, ammonolyzed or reduced. The resulting sulfonic-acid and aminosulfonyl derivatives have been employed for peptide synthesis with Boc-protection of the Nα-position only. The reduction product L-(4′-SH)Phe has been protected by formation of asymmetric disulfides or with various thiol protecting groups (benzyl-