Synthesis of anti-tumour phosphatidylinositol analogues from glucose by the use of ring-closing olefin metathesis
作者:Thomas L. Andresen、Dorthe M. Skytte、Robert Madsen
DOI:10.1039/b411021h
日期:——
A divergent strategy is described for synthesis of the novel phosphatidylinositols 1-3. The synthetic approach commences from benzyl-protected methyl 6-iodo-6-deoxy-alpha-D-glucopyranoside, which undergoes zinc-mediated reductive fragmentation followed by vinyl Grignard addition and ring-closingmetathesis to afford the key conduritol B intermediate 7. This can trifurcate to form three different benzyl-protected
Kinetic resolutions and kineticasymmetrictransformations (KAT) as well as dynamickinetic resolutions and dynamickineticasymmetrictransformations (DYKAT) are important synthetic protocols. The feasibility of KAT and DYKAT processes for asymmetric allylic alkylations (AAA) is explored utilizing a single substrate--conduritol B tetraesters. Both processes can be performed resulting in excellent