Convergent stereospecific total synthesis of monochiral Monocillin I related macrolides
作者:Maxime Lampilas、Robert Lett
DOI:10.1016/s0040-4039(00)77712-4
日期:1992.2
The first total synthesis of Monocillin I related macrolides has been achieved by a convergent and stereospecific route involving the palladium - catalyzed coupling of a functionnalized chiral vinylstannane with the appropriate dimethoxy bromomethyl isocoumarin. Cleavage conditions of the isocoumarin ring were then found for the preparation of a precursor hydroxy acid. The 14-membered macrolide was
Improvements of the total synthesis of monocillin I and radicicol via Miyaura–Suzuki couplings
作者:Isabelle Tichkowsky、Robert Lett
DOI:10.1016/s0040-4039(02)00714-1
日期:2002.5
The palladium-catalyzed coupling of the vinyldisiamylborane, formed in situ, affords the isocoumarins which can be used further for the synthesis of radicicol and related macrolides, in 72% global overall yield from the alkyne. Advantages over related vinylboronates or vinyltin couplings are discussed in the case of the present examples.