Exploiting the MeDbz Linker To Generate Protected or Unprotected C-Terminally Modified Peptides.

Exploiting the MeDbz Linker To Generate Protected or Unprotected C-Terminally Modified Peptides.
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DOI:
10.1002/chem.201703380
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发表时间:
2017-09-12
期刊:
Chemistry (Weinheim an der Bergstrasse, Germany)
影响因子:
--
通讯作者:
Stockdill JL
Stockdill JL
中科院分区:
其他
文献类型:
--
作者:
Arbour CA;Saraha HY;McMillan TF;Stockdill JL

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C-terminally modified peptides are important targets for pharmaceutical and biochemical applications. Known methods for C-terminal diversification are limited mainly in terms of the scope of accessible modifications or by epimerization of the C-terminal amino acid. In this work, we present a broadly applicable approach that enables access to a variety of C-terminally functionalized peptides in either protected or unprotected form. This chemistry proceeds without epimerization of C-terminal Ala and tolerates nucleophiles of varying nucleophilicity. Finally, unprotected peptides bearing nucleophilic side chain groups can be selectively functionalized by strong nucleophiles, while macrocyclization is observed for weaker nucleophiles. The potential utility of this method is demonstrated through the divergent synthesis of the conotoxin conopressin G and GLP-1(7-36) and analogs.
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