Abstract
Aculeatins A and B, two naturally occurring bioactive spiroacetals, have been synthesized efficiently in stereoselective manner starting from 1-tetradecanal. The synthetic strategy involves Maruoka enantioselective allylation, diastereoselective iodine-induced electrophilic cyclization, alkylation of a chiral aldehyde and oxidative spirocyclization as the important steps. Keywords: Aculeatins A and B, total synthesis, Maruoka allylation, iodine-induced cyclization, alkylation, spirocyclization, Zingiberaceae, tetradecanal, Trypazoma, ketone
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