Stevens, Davis, Miller & Mosher
Benzo(1,8)naphthyridine derivatives as intermediates
 New benzo[b][1,8]naphthyridine derivatives of general formula (I) in which R is a hydrogen atom or an alkyl, fluoroalkyl, cycloalkyl (3 to 6 C), alkoxy, alkylamino or protected alkylamino radical, Hal is F, Cl or Br if R' is hydrogen, or Hal and R' are F, and Alk is an alkyl radical, and their preparation. These new products can be used as intermediates for the preparation of biologically active products. ##STR1## 
Rhone-Poulenc Sante
C A
C07D A61P
inventional inventional
Michel Guy Philippe Michel Jean-Francois
Barreau Picaut Girard Antoine Desconclois