Rozek, T.Bowie, J.Skelton, B.White, A.2007-02-252007-02-252003Acta Crystallographica Section C: Crystal Structure Communications, 2003; 59(8):O431-O4320108-27011600-5759http://hdl.handle.net/2440/17944Copyright © International Union of CrystallographyThe Diels-Alder reaction between 5-hydroxy-1,4-naphthoquinone and 5,5-dimethyl-3-vinyl-1,2-cyclohexadienyl acetate by endo addition gives the title compound, C(22)H(22)O(5), in 68% yield. This racemic diastereoisomer has the opposite regiochemistry to ochromycinone analogues produced previously and may allow access to a new type of anticancer-active saquayamycin analogue.enJournal article002003007410.1107/S01082701030133740001845498000282-s2.0-004286594759102