TY - JOUR ID - pittir25623 UR - http://d-scholarship-dev.library.pitt.edu/25623/ IS - 14 A1 - Wipf, P A1 - Coish, PDG Y1 - 1999/07/09/ N2 - We have developed a highly convergent synthesis of the manumycin-type m- C7N-antibiotic nisamycin that is applicable to other members of this family of antibiotics. The synthesis features a three-step sequence to the epoxyquinol core that serves as a scaffold for the attachment of the polyene side chains. The eastern polyene side chain was constructed via a novel organozirconocene-mediated synthesis. Zirconocene methodology was also applied to the synthesis of the polyene side chains of asukamycin. The southern side chain of nisamycin was introduced via a Stille reaction that employed a vinyl bromo ketone, derived from an acid-sensitive bromo ketal. Pd-mediated coupling of the vinyl bromide with a stannyl TIPS ester gave TIPS-protected nisamycin that was readily converted to the natural product. JF - Journal of Organic Chemistry VL - 64 SN - 0022-3263 TI - Total synthesis of (±)-nisamycin SP - 5053 AV - public EP - 5061 ER -