3-SUBSTITUTED-4-AMINOALKOXY-5,6-CONDENSED RING-(2H)-PYRAN-2-ONES,THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

Novel 3-substituted-4-aminoalkoxy-5,6-condensed ring-2-pyranones are disclosed as having utility as pharmacologically active compounds, in particular vasodilatory, hypotensive, anti-ischemic and anti-tussive activity. The compounds may be 3-phenyl-4-morpholinoalkoxy-coumarins. Administration may be by the oral or parenteral route. Intermediates useful in the production of these compounds are also disclosed.