Polycyclic N-Heterocyclic Compounds. 49 New Synthetic Method of Furo[3,2-f][1,7]naphthyridine Skeleton
作者:Takashi Hirota、Tetsuo Matsushita、Kenji Sasaki、Setsuo Kashino
DOI:10.3987/com-95-7212
日期:——
An synthesis of 5-amino-1,2-dihydrofuro[3,2-f][1,7]naphthyridine (6) from 3-(3-cyanopropoxy)pyridine-2-carbonitrile (5) is described. Compound (6) was converted to mother skeleton (12). Treatment of 6 with conc. hydrochloric acid gave new spiroheterocycle (7).