title: Secure route to the epoxybicyclo[7.3.0]dodecadienediyne core of the kedarcidin chromophore.
abstract: Formation of an epoxide before 9-membered ring cyclization and SmI2 mediated reductive olefination in the presence of the epoxide successfully produced the epoxybicyclo[7.3.0]dodecadienediyne core of the kedarcidin chromophore.
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
authors.forename: Kouki
authors.initials: K
authors.lastname: Ogawa
authors.forename: Yasuhito
authors.initials: Y
authors.lastname: Koyama
authors.forename: Isao
authors.initials: I
authors.lastname: Ohashi
authors.forename: Itaru
authors.initials: I
authors.lastname: Sato
authors.forename: Masahiro
authors.initials: M
authors.lastname: Hirama