作者:Mathias M. Domostoj、Ed Irving、Feodor Scheinmann、Karl J. Hale
DOI:10.1021/ol0490476
日期:2004.7.1
text] A new total synthesis of (-)-agelastatin A (1) has been achieved from the chiral oxazolidinone (-)-3. Although enone transposition was problematic when the Michael ring closure of 2 was attempted with strong base, the desired cyclization could be effected with Hunig's base after the pyrrole nucleus was brominated. Subsequent reduction and monobromination afforded synthetic (-)-agelastatin A (1).
[反应:见正文]从手性恶唑烷酮(-)-3已实现了(-)-agelastatin A(1)的新全合成。尽管在强碱的情况下尝试2的迈克尔环闭合时,烯酮易位是有问题的,但是在吡咯核被溴化后,可以用Hunig碱实现所需的环化。随后的还原和单溴化得到合成的(-)-agelastatin A(1)。