Trisubstituted (E)-Alkene Dipeptide Isosteres as β-Turn Promoters in the Gramicidin S Cyclodecapeptide Scaffold
摘要:
A concise synthesis of a gramicidin S analogue with trisubstituted (E)-alkene dipeptide isostere (TEADI) replacements at both D-Phe-Pro positions was realized. Conformational analysis demonstrated that TEADIs can serve as type II beta-turn promoters in a cyclic scaffold and successfully mimic a proline residue.
Trisubstituted (E)-Alkene Dipeptide Isosteres as β-Turn Promoters in the Gramicidin S Cyclodecapeptide Scaffold
摘要:
A concise synthesis of a gramicidin S analogue with trisubstituted (E)-alkene dipeptide isostere (TEADI) replacements at both D-Phe-Pro positions was realized. Conformational analysis demonstrated that TEADIs can serve as type II beta-turn promoters in a cyclic scaffold and successfully mimic a proline residue.