Total Synthesis of (−)-Balanol, All Stereoisomers, TheirN-Tosyl Analogues, and Fully Protected Ophiocordin: An Easy Route to Hexahydroazepine Cores from Garner Aldehydes
作者:Ajay Kumar Srivastava、Gautam Panda
DOI:10.1002/chem.200701991
日期:2008.5.19
(-)-balanol and all of itsstereoisomers starting from easily available Garner aldehydes are described. Diastereoselective Grignard reactions on Garner aldehydes and ring-closing metatheses are the key steps for the construction of hexahydroazepine subunits. The benzophenone subunits were constructed through coupling of suitably functionalized aromatic aldehyde and bromo components. The synthetic route