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An Efficient Synthesis of Pyrazolo[3,4-b]quinolin-3-amine and Benzo[b][1,8]naphthyridine Derivatives
- Yehya M Elkholy
2-Oxo-4-phenyl-1,2,5,6,7,8-hexahydroquinoline-3-carbonitrile (10) reacted with hydrazine hydrate, phenylisothiocyanate or benzoyl chloride to give derivatives 12, 13 and 15, respectively. The latter two products were treated with hydrazine hydrate to...