... Steroids. For a useful summary see Reinhold Publishing Corp. ... Intramolecular alkylative arylation of oxabicylic alkene: A potential diene approach for the synthesis of estrone and analogous steroid structures. Organic Letters, Volume 6, 15 April 2004, Pages 1333-1335. ...
[Holland, Herbert L.; Chenchaiah, P. Chinna; Thomas, Everton M.; Mader, Beatrix; Dennis, Michael J. Canadian Journal of Chemistry, 1984 , vol. 62, p. 2740 - 2747]