Oxazolophanes as masked cyclopeptide alkaloid equivalents: cyclic peptide chemistry without peptide couplings
作者:Bruce H. Lipshutz、Bret E. Huff、Keith E. McCarthy、S. M. Jaweed Mukarram、Teruna J. Siahaan、Wayne D. Vaccaro、Hugh Webb、Arnold M. Falick、Todd A. Miller
DOI:10.1021/ja00175a039
日期:1990.9
Synthetic studies on the preparation of heteroatom-substituted, novel [3.3]oxazolophanes as precursors to the 14-membered ring system characteristic of the cyclopeptide alkaloids are reported. Simpler model systems are discussed, as is the successful formation of a fully functionalized, nonracemic cyclophane incorporating an oxazole nucleus. Unmasking of the requisite cyclic dipeptide is achieved in
杂原子取代的新型 [3.3] 恶唑烷作为环肽生物碱 14 元环系统特征的前体的合成研究已报道。讨论了更简单的模型系统,以及成功形成包含恶唑核的完全功能化的非外消旋环芳。一次操作即可揭开必需的环状二肽