Synthesis of 1-(aminomethyl)-1,2,3,4-tetrahydroisoquinolines and their actions at adrenoceptors in vivo and in vitro
摘要:
An improved synthesis of 1-(aminomethyl)-1,2,3,4-tetrahydroisoquinolines has been developed by using aluminum hydride reduction of 1-cyano-1,2,3,4-tetrahydroisoquinolines. Three 1-(aminomethyl)-6,7-dihydroxytetrahydroisoquinolines were tested for actions at beta adrenoceptors in order to examine a proposed similarity between this series and the related phenylethanolamines. The aminomethyl, (isopropylamino)methyl, and (tert-butylamino)methyl derivatives all showed weak partial agonist activity at beta adrenoceptors and the first also showed weak alpha adrenoceptor agonist activity in vivo. Their low potency implies that the catechol group of THIQ sympathomimetics, such as trimetoquinol, binds differently from that of the natural catecholamines. The protonation behavior of representative aminomethyl-THIQ's was investigated by pKa measurement and 1H and 13C NMR, and the compounds were shown to be substantially monoprotonated, on the exocyclic nitrogen, at physiological pH.
Organocatalytic enantioselective synthesis of 1-vinyl tetrahydroisoquinolines through allenamide activation with chiral Brønsted acids
作者:E. Manoni、A. Gualandi、L. Mengozzi、M. Bandini、P. G. Cozzi
DOI:10.1039/c4ra14942d
日期:——
In this paper we present a new approach for the realization of tetrahydroisoquinoline scaffolds via stereoselective proto-activation of suitable allenamide precursors.
Substituted pyridinone-containing trycyclic compounds, and methods using same
申请人:ARBUTUS BIOPHARMA CORPORATION
公开号:US10821103B2
公开(公告)日:2020-11-03
The present invention includes substituted pyridinone-containing tricyclic compounds, and compositions comprising the same, that can be used to treat or prevent hepatitis B virus (HBV) infection in a patient. In certain embodiments, the compounds and compositions of the invention inhibit and/or reduce HBsAg secretion.
BEAUMONT, D.;WAIGH, R. D.;SUNBHANICH, METHI;NOTT, M. W., J. MED. CHEM., 1983, 26, N 4, 507-515
作者:BEAUMONT, D.、WAIGH, R. D.、SUNBHANICH, METHI、NOTT, M. W.
DOI:——
日期:——
SUBSTITUTED PYRIDINONE-CONTAINING TRYCYCLIC COMPOUNDS, AND METHODS USING SAME
申请人:ARBUTUS BIOPHARMA CORPORATION
公开号:US20190314347A1
公开(公告)日:2019-10-17
The present invention includes substituted pyridinone-containing tricyclic compounds, and compositions comprising the same, that can be used to treat or prevent hepatitis B virus (HBV) infection in a patient. In certain embodiments, the compounds and compositions of the invention inhibit and/or reduce HBsAg secretion.