A Carbohydrate-Based Approach for the Total Synthesis of Aculeatin D and 6-<i>epi</i>-Aculeatin D
作者:C. V. Ramana、Burgula Srinivas
DOI:10.1021/jo800026n
日期:2008.5.1
A concise approach for the total synthesis of aculeatin D and 6-epi-aculeatin D employing differentially protected anti,anti-1,3,5-triol alkyne prepared from alpha-D-glucoheptonic-gamma-lactone derivative is documented. Phenol protecting group manipulation for selective O-debenzylation during the hydrogenation of the diyne intermediate and one-pot phenolic oxidation with concomitant spiroketalization highlight the accomplished total synthesis.
A modular total synthesis of aculeatins A, B, E, F and 6-epi-aculeatins E, F
作者:C.V. Ramana、Sunil Kumar Pandey
DOI:10.1016/j.tet.2009.10.058
日期:2010.1
The totalsynthesis of aculeatins A, B, E and F confirming the assigned absolute configuration of recently isolated aculeatins E and F is documented. A convergent approach has been designed by the addition of both the terminal units (phenol and side chain) at an advanced stage. The central 1,3,5-triol unit with the requisite stereochemistry was prepared from the commercially available α-d-glucoheptonic-γ-lactone