Synthesis of novel nucleosides of 4-oxoquinoline-3-carboxylic acid analogues - Da Matta,A.D.; Santos,C.VE.; Pereira,H.S.; Frugulhetti,I.CPP.; Oliveira,M.RP.; Souza,M.CBV.; Moussatché,N.; Ferreira,V.F. (Heteroatom Chemistry, 1999)