5-Amino-8-methyl-1,2-dihydrothieno-(and furo)[2,3-h][1,6]naphthyridines

Robert Kingsford-Adaboh, Setsuo Kashino, Kenji Sasaki, Abu Shara Samsur Rouf, Takashi Hirota

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


X-ray structure analyses of Smiles rearrangement and further cyclization products of 2-[3-cyanopropylthio-(and oxy)]pyridine-3-carbonitriles revealed the structures of 5-amino-8-methyl-1,2-dihydrothieno[2,3-h][1,6]-naphthyridine, C11H11N3S, and 5-amino-8-methyl-1,2-dihydrofuro[2,3-h][1,6]naphthyridine, C11H11N3O. The crystals of both compounds are isomorphous; monoclinic, space group P21/n. The molecules, related by a centre of symmetry, are linked through N - H⋯N hydrogen bonds. Common features of bond lengths and angles that characterize the thieno and furo[2,3-h][1,6]-naphthyridine skeletons are described.

Original languageEnglish
Pages (from-to)372-375
Number of pages4
JournalActa Crystallographica Section C: Crystal Structure Communications
Issue number2
Publication statusPublished - Feb 15 1996
Externally publishedYes

ASJC Scopus subject areas

  • General Biochemistry,Genetics and Molecular Biology


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