期刊
TETRAHEDRON LETTERS
卷 41, 期 10, 页码 1553-1557出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(99)02353-9
关键词
oligomers; ureas; solid-phase synthesis; carbamates
An efficient stepwise synthesis of oligoureas (up to the nonamer) on solid support using O-succinimidyl-(9H-fluoren-9-ylmethoxycarbonylamino)ethylcarbamate derivatives as activated monomers is described. These building blocks were readily prepared starting from N-Fmoc-protected beta(3)-amino acids via Curtius rearrangement of the corresponding acyl azides and treatment of the resulting isocyanate with N-hydroxysuccinimide. (C) 2000 Elsevier Science Ltd. All rights reserved.
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