Synthetic studies on (+)-aplasmomycin. 2. Stereoselective synthesis of Corey's key intermediate, a formal total synthesis
作者:Tadashi Nakata、Kunio Saito、Takeshi Oishi
DOI:10.1016/s0040-4039(00)87805-3
日期:1986.1
The C-3 ∼ C-11 segment of (+)-aplasmomycin was synthesized stereoselectively starting from (+)-pantolactone () and the C-3 ∼ C-17 segment was synthesized via coupling of and .
The C3-C17 segment of a boron containing ionophoric antibiotic aplasmomycin (1), the key intermediate in Corey's totalsynthesis of 1, was stereoselectively synthesized in an optically active form. This synthesis involved stereoselective construction of the two segments, (+)-dithiane 3 (C3-C11) and (+)-aldehyde 4 (C12-C17), based on remote controlled asymmetric reductions of the corresponding ketones