Cyclopropane-Derived Peptidomimetics. Design, Synthesis, and Evaluation of Novel Enkephalin Analogues
作者:Stephen F. Martin、Michael P. Dwyer、Benoît Hartmann、Kyle S. Knight
DOI:10.1021/jo991288h
日期:2000.3.1
lactones with dipeptides, and a novel method for the synthesis of substituted diaminocyclopropanes was also developed. The Leu-enkephalin analogues were tested in a panel of binding and functional assays, and although those derivatives containing cyclopropane replacements of the Gly(2)-Gly(3) exhibited low micromolar affinity for the mu-receptor, analogues containing such replacements for the Phe(4)-Leu(5)
Stereocontrolled and Convergent Total Synthesis of Amphidinolide T3
作者:Li-Sheng Deng、Xiao-Ping Huang、Gang Zhao
DOI:10.1021/jo0605086
日期:2006.6.1
Stereocontrolled and convergent total synthesis of amphidinolideT3 has been described. A retrosynthetic scheme was constructed that led to the recognition of readily available and enantiomerically related compounds as starting materials for the total synthesis of amphidinolideT3. Thus, the two key building blocks 6 and 7 were defined as subtargets and synthesized in optically active forms. The C1−C12
Didemnaketal B, a structurally complex spiroacetal that exhibits potent HIV‐1 protease inhibitory activity, was originally discovered by Faulkner and his colleagues from the ascidian Didemnum sp. collected at Palau. Its absoluteconfiguration was proposed on the basis of degradation/derivatization experiments of the authentic sample. However, our total synthesis of the proposed structure of didemnaketal B