A route to the fully substituted cyclopentane unit of viridenomycin using a tandem radical cyclisation–trapping strategy

A silicon-tethered intramolecular radical cyclisation, in tandem with a radical trapping with allyltri-n-butylstannane forms the basis of a new synthetic strategy to the cyclopentane core of the antitumoral antibiotic substance viridenomycin isolated from Streptomyces viridochromogenes and S. gannmycicus.