The totalsynthesis of (+)-compactin 1 has been achieved by employing a double Michael reaction of (R)-1-acetyl-3-(tert-butyldimethylsiloxy)cyclohexene 16 with methyl crotonate as the key reaction.
The total synthesis of (+)-dihydrocompactin 1 has been achieved by employing double Michael reaction of 3-(tert-butyldimethylsiloxy)-1-acetylcyclohexene 13 with methyl crotonate and the TiCl4-promoted aldol condensation of the bis(trimethylsilyl enol ether) of methyl acetoacetate 7 as key reactions.