SEARCH Articles Figures Tables Naphthyridinones Preparation of 1,6-Naphthyridinones and the Like Preparation of Tautomeric 1,5-Naphthyridinones and the Like Reactions of 1,6-Naphthyridinones and the Like Reactions of Tautomeric 1,5-Naphthyridinones and the Like