New approaches to the asymmetric synthesis of non-proteinogenic α-amino acids and dipeptides through chiral β-lactam intermediates
作者:Iwao Ojima、Hauh-Jyun C. Chen、Xiaogang Qiu
DOI:10.1016/s0040-4020(01)86038-5
日期:1988.1
Novel and effective routes to optically pure aromatic α-amino acids, α-methyl-α-amino acids and their derivatives including dipeptides are developed via homochiral β-lactams which are obtained through asymmetric [2+2] cycloadditions of ketenes to imines.
An efficient and cost-effective approach to kahalalide F N-terminal modifications using a nuisance algal bloom of Bryopsis pennata
作者:Bin Wang、Amanda L. Waters、Frederick A. Valeriote、Mark T. Hamann
DOI:10.1016/j.bbagen.2015.05.004
日期:2015.9
Background Kahalalide F (KF) and its isomer iso-kahalalide F (isoKF), both of which can be isolated from the molluskElysiarufescens and itsdiet alga Bryopsis pennata, are potent cytotoxic agents that have advanced through five clinical trials. Due to a short half-life, narrow spectrum of activity, and a modest response in patients, further efforts to modify the molecule are required to address its limitations