Synthesis of the fully functionalized tris-oxazole fragment found in metabolites derived from marine organisms
作者:Ping Liu、Cassandra A. Celatka、James S. Panek
DOI:10.1016/s0040-4039(97)01218-5
日期:1997.8
The synthesis of the fully functionalized tris-oxazole fragment 9 found in marinemetabolites kabiramide C and halichondramide is reported employing modified Hantzsch methodology. Starting with the condensation reaction between cinnamamide 1 and ethyl bromopyruvate 2, the synthetic sequence leading to 9 was carried out in 13 steps with an overall yield of 26%.