Baettig, Urs; Brown, Lyndon; Brundish, Derek; Dell, Colin; Furzer, Alex; Garman, Sheila; Janus, Diana; Kane, Peter D.; Smith, Garrick; Walker, Clive V.; Cockcroft, Xiaoling; Ambler, John; Mitchelson, Andrew; Talbot, Mark D.; Tweed, Morris; Wills, Nicholas Bioorganic and Medicinal Chemistry Letters, 2000, vol. 10, # 14 p. 1563 - 1566 doi: 10.1016/S0960-894X(00)00282-1