期刊
TETRAHEDRON LETTERS
卷 53, 期 7, 页码 726-729出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.12.002
关键词
Peptoid; Boronic acid; Peptidomimetic; Boronate ester; beta-D-Galactose
资金
- National Institute of General Medical Sciences [R01GM088842]
Introduction of conformational constraints into peptoids (N-substituted oligoglycines) will enable new applications in molecular recognition and self-assembly. Peptoids that contain both phenylboronic acid side chain and vicinal diol cyclize by intramolecular condensation to form boronate esters. A fluorescent indicator of free boronic acid was used to assay esterification. A galactose moiety 2-5 monomer units away from a boronic acid side chain in a peptoid reacts with the boronic acid in competition with the indicator. The intramolecular reaction predominates in each case, with 80-90% of the peptoid cyclized. When the diol is a simple 2,3-dihydroxypropyl group, esterification is less favored but still appreciable. (C) 2011 Elsevier Ltd. All rights reserved.
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