Bromocyclization of Alkynyl Guanidine: A New Approach to the Synthesis of Cyclic Guanidines of Saxitoxin
作者:Toshio Nishikawa、Yusuke Sawayama
DOI:10.1055/s-0030-1259546
日期:2011.3
Bromocyclization of propargyl and homopropargyl guanidines possessing homopropargyl alcohol provides five- and six-membered cyclic guanidines with spiro-hemiaminal, respectively, a candidate of precursors for saxitoxin.
具有高炔
丙醇的炔丙基和高炔丙基
胍的
溴环化分别提供了五元和六元环
胍与螺半胺,这是石房蛤毒素前体的候选物。