Studies toward stereoselective synthesis of the marinemetabolitebistramideK was described using nonracemic methyl p‐tolyl sulfoxide as unique source of chirality.
A highly stereoselective and convergent totalsynthesis of bistramide A is described. The salient feature of this synthesis is the construction of the spiroketal subunit by hydrolysis of dialkylated tosylmethyl isocyanide derivative derived via alkylation of TosMIC with suitably substituted halohydrin derivatives.