(untitled) - Wyatt,P.G.; Anslow,A.S.; Coomber,B.A.; Cousins,R.P.C.; Evans,D.N.; Gilbert,V.S.; Humber,D.C.; Paternoster,I.L.; Sollis,S.L.; Tapolczay,D.J.; Weingarten,G.G. (Nucleosides Nucleotides, 1995)