[1]Priefer,Ronny;Farrell,PatrickG;Harpp,DavidN[TetrahedronLetters,2002,vol.43,#48,p.8781-8784]
[2]Priefer,Ronny;Farrell,PatrickG.;Harpp,DavidN.[Synthesis,2002,#18,p.2671-2673]
[3]Priefer,Ronny;Farrell,PatrickG.;Harpp,DavidN.[Synthesis,2002,#18,p.2671-2673]
[4]Priefer,Ronny;Farrell,PatrickG.;Harpp,DavidN.[Synthesis,2002,#18,p.2671-2673]