%0 Journal Article %T A diastereoselective cobalt-mediated synthesis of benzopyrans using a novel variation of an intramolecular Nicholas reaction in the key cyclisation step: optimisation and biological evaluation 1 %A Mann, Alastair %A Muller, Christophe %A Tyrrell, Elizabeth %J Journal of the Chemical Society, Perkin Transactions 1 %V %N 8 %P 1427-1438 %@ 0300-922X %D 1998-01-01 %I The Royal Society of Chemistry %~ DeepDyve