Kim, JM Wilson, TE Norman, TC Schultz, PG 2024-01-21T19:32:03Z 2024-01-21T19:32:03Z 2021-09-01 1996-07-22 0040-4039 https://pubs.kist.re.kr/handle/201004/144382 A cyclic urea trimer was synthesized from readily available amino acid derivatives using a simple, iterative approach. A selective amide reduction using borane (BH3-THF) and a triphosgens-mediated cyclization are the key features in a synthesis of the cyclic urea trimer 2. Copyright (C) 1996 Elsevier Science Ltd English PERGAMON-ELSEVIER SCIENCE LTD PEPTIDE COMBINATORIAL LIBRARIES VINYLOGOUS SULFONYL PEPTIDES SOLID-PHASE SYNTHESIS UNNATURAL BIOPOLYMERS DRUG DISCOVERY Synthesis of a cyclic urea as a nonnatural biopolymer scaffold Article 10.1016/0040-4039(96)01101-X 1 TETRAHEDRON LETTERS, v.37, no.30, pp.5309 - 5312 TETRAHEDRON LETTERS 37 30 5309 5312 scie scopus A1996UZ67400024 Chemistry, Organic Chemistry Article PEPTIDE COMBINATORIAL LIBRARIES VINYLOGOUS SULFONYL PEPTIDES SOLID-PHASE SYNTHESIS UNNATURAL BIOPOLYMERS DRUG DISCOVERY