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Browsing by Author "Banos, JE"

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  • Synthesis and acetylcholinesterase/butyrylcholin-esterase inhibition activity of 4-amino-2,3-diaryl-5,6,7,8-tetrahydrofuro(and thieno)[2,3-b]quinolines, and 4-amino-5,6,7,8,9-pentahydro-2,3-diphenylcyclohepta[e]furo(and thieno)-[2,3-b]pyridine
    Publication . Marco, JL; de los Rios, C; Carreiras, MC; Banos, JE; Badia, A; Vivas, NM
    The acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) inhibition activities of a series of 4-amino-2,3-diaryl-5,6,7,8-tetrahydrofuro[2,3-b]quinolines (10-12)/4-amino-5,6,7,8-tetrahydro-2,3-diphenylthieno[2,3-b]quinoline (14) and 4-amino-5,6,7,8,9-pentahydro-2,3-diphenylcyclohepta[e]furo[2,3-b]pyridine (13)/4amino-5,6,7,8,9-pentahydro-2,3-phenylcyclohepta[e]thieno[2,3-b]pyridine (15) are described. These compounds are tacrine (THA) analogues which have been prepared either from readily available 2-amino-3-cyano-4,5-diarylfurans (16-18) or from 2-amino-3-cyano-4,5-diphenylthiophene (19), via Friedlander condensation with cyclohexanone or cycloheptanone. These compounds are competitive inhibitors for acetylcholinesterase, the more potent being compound (13) which is threefold less active than tacrine. The butyrylcholinesterase inhibition activity is significant only in compounds 10 and 13, which are ten-fold less active than tacrine. It is found that the products 11 and 12 strongly inhibit acetylcholinesterase, and show excellent selectivity regarding butyrylcholinesterase.
    2002Journal article Metadata only Show more
  • Synthesis and acetylcholinesterase/butyrylcholinesterase inhibition activity of new tacrine-like analogues
    Publication . Marco, JL; de los Rios, C; Carreiras, MC; Banos, JE; Badia, A; Vivas, NM
    The synthesis and preliminary results for acetylcholinesterase and butyrylcholinesterase inhibition activity of a series of pyrano[2,3-b]quinolines (2, 3) and benzonaphthyridines (5, 6) derivatives are described. These molecules are tacrine-like analogues which have been prepared from readily available polyfunctionalized ethyl [6-amino-5-cyano-4H-pyrans and 6-amino-5-cyanopyridine s]-3-carboxylates via Friedlander condensation with selected ketone s. These compounds showed moderate acetylcholinesterase inhibition activity, the more potent (2e, 5b) being 6 times less active than tacrine. The butyrylcholinesterase activity of some of these molecules is also discussed. (C) 2001 Elsevier Science Ltd. All rights reserved.
    2001Journal article Metadata only Show more