Synthesis of a remarkably stable bicyclo[7.3.1]diynene esperamicin A1/calicheamicin .gamma. system. Structural requirements for facile formation of a 1,4-diyl
The diynene lithium acetylide 5 adds to 2-siloxy-2-cyclohexenone 6 followed by silyl migration to produce ketone adduct 7, an intermediate towards a simple Esperamicin core
Synthesis of a remarkably stable bicyclo[7.3.1]diynene esperamicin A1/calicheamicin .gamma. system. Structural requirements for facile formation of a 1,4-diyl
作者:Philip. Magnus、Richard T. Lewis、John C. Huffman