Chiral synthesis of polyketide-drived natural products. 43. Stereoselective synthesis of optically active 4-ethyl-3,5-dihydroxy-2-methylpentyl derivatives. A basic building block with three contiguous chiral centers of polyether antibiotics.
Stereoselective total synthesis of lysocellin, the representative polyether antibiotic of the lysocellin family. Part 2. Synthesis of C10–C23 subunit via construction of two rings (B and C) and its condensation with C1–C9 subunit to achieve the total synthesis of lysocellin
Stereoselective totalsynthesis of lysocellin (1), a representative polyether antibiotic, was achieved via coustruction of substituted tetrahydrofuran and γ-lactol rings and final aldol condensation.
Stereoselective total synthesis of polyether ionophore antibiotics, isolasalocid A and lasalocid A. part 2. the total synthesis via stereoselective construction of the B rings by chelation-controlled cyclization under thermodynamic conditions.
Stereoselective totalsynthesis of isolasalocid A (1) and lasalocid A (2) was achieved via construction of the tetrahydrofuran rings by chelation-controlled cyclization of the corresponding p-methoxyphenyl substituted allyl alcohols (6, 7) under thermodynamic conditions.