An Approach to the Bis-oxazole Macrocycle of Diazonamides
摘要:
A convergent approach to a macrocyclic compound embodying the complete "eastern" quadrant of diazonamides is described. The opening sequence in this work relies on an oxazole-forming reaction devised earlier in this group, while a late step involves a Robinson-Gabriel cyclization of an amidoketone to form a second oxazole.
An Approach to the Bis-oxazole Macrocycle of Diazonamides
作者:Jianmin Zhang、Marco A. Ciufolini
DOI:10.1021/ol102678j
日期:2011.2.4
A convergent approach to a macrocyclic compound embodying the complete "eastern" quadrant of diazonamides is described. The opening sequence in this work relies on an oxazole-forming reaction devised earlier in this group, while a late step involves a Robinson-Gabriel cyclization of an amidoketone to form a second oxazole.