A synthetic procedure for construction of the (+)-(3R,5R,6R)-5,6-dihydroxy-3,7-dimethyl-octanal and (−)-(3S,5S,6S)-5,6-dihydroxy-3,7-dimethyl-octanal derivatives, the intermediates for synthesis of the HIV-active didemnaketal analogue, was developed via a series of reactions from the natural (−)-menthone.
Convergent synthesis of the spiroketal core of the HIV-1 protease inhibitors the didemnaketals
作者:Yanxing Jia、Xin Li、Pingzhen Wang、Bin Wu、Xuezhi Zhao、Yongqiang Tu
DOI:10.1039/b108512n
日期:2002.2.6
stereocontrolled and efficient synthetic approach to the spiroketal compound 4a and its C1″-epimer 4b, the core of the HIV-protease inhibitor didemnaketals isolated from the ascidian Didemnum sp., is developed through a multi-step approach from natural L-(−)-menthone. This route involves the highly diastereoselective construction of four chiralcarboncenters by intramolecular chiral induction.