摘要:
The present invention is directed to new pyrazolo/4,3-c/pyridines, the process for their preparation, the pharmaceutical compositions containing them and their use as pharmocologically active substances. The compounds of the invention possess cardiotonic, antihypertensive, CNS depressant, neuroleptic, and analgesic activity.
摘要:
##STR1## Compounds of formula (I) wherein X, Y, R 1 and R 2 have the meanings specified in the specification, are endowed with cardiovascular activity.
摘要:
A silencer for the exhaust gas of motor vehicle internal combustion engines is proposed comprising an outer wall having in its upper part a deformable zone, preferably in the form of a transverse indentation, which provides preferential deformation under impact, and if a rear impact occurs prevents the silencer from rigidly striking the most inner structure of the vehicle floor and the fuel tank.
摘要:
Diesters of carbonic acid disubstituted with primary, secondary or tertiary amine groups, pharmaceutically acceptable salts thereof, and their use as antiviral and inti-inflammatory agents.
摘要:
##STR1## Compounds of formula (I) wherein X, Y, R 1 and R 2 have the meanings specified in the specification, are endowed with cardiovascular activity.
摘要:
Compounds of formula I ##STR1## wherein R represents hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.5 -C.sub.7 cycloalkyl, methylene-dioxy or phenyl, which may be substituted by one or two groups independently selected from hydroxy, halogen, nitro, C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy; R.sub.1 and R.sub.2 independently represent hydrogen, COOR.sub.3, --CONR.sub.4 R.sub.5, ##STR2## --OCONR.sub.4 R.sub.5, --OCOR.sub.3, --NR.sub.4 R.sub.5, --OCOOR.sub.6, --NR.sub.3 COR.sub.7, --NR.sub.CONR.sub.4 R.sub.5, --N.dbd.CH--NR.sub.4 R.sub.5, NO.sub.2, CN, OH, SR.sub.3, wherein R.sub.3 is hydrogen or C.sub.1 -C.sub.6 alkyl, R.sub.4 and R.sub.5 independently are hydrogen or C.sub.1 -C.sub.6 alkyl, R.sub.6 is C.sub.1 -C.sub.6 alkyl, and R.sub.7 is hydrogen, C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy, with the proviso that R.sub.1 and R.sub.2 cannot be hydrogen at the same time; X is oxygen or sulphur; Y represents a C.sub.2 -C.sub.6 alkylene chain or a C.sub.5 -C.sub.7 cycloalkylene group; and their pharmaceutically acceptable salts are provided and their use in pharmaceutical compositions which may be used in the treatment of cardiovascular diseases.
摘要:
Isoindole compounds of the formula (I) ##STR1## wherein R.sub.1 represents hydrogen; C.sub.1 -C.sub.6 alkyl; benzyl optionally substituted with halogen, hydroxy, C.sub.1 -C.sub.6 alkoxy, methylenedioxy; C.sub.2 -C.sub.8 aliphatic acyl; benzoyl optionally substituted with halogen, hydroxy, C.sub.1 -C.sub.6 alkoxy, C.sub.2 -C.sub.6 alkanoyl, C.sub.2 -C.sub.6 alkanoyloxy, C.sub.1 -C.sub.4 alkyl, trifluoromethyl, methylenedioxy;R.sub.2 -R.sub.3 are selected independently from hydrogen; halogen; C.sub.1 -C.sub.4 alkyl; trifluoromethyl; hydroxy; nitro; amino; mono or di C.sub.1 -C.sub.4 alkylamino; cyano; C.sub.1 -C.sub.6 alkoxy; C.sub.2 -C.sub.6 alkoxycarbonyl;Y is ethylene, or a straight or branched alkylene chain containing from 3 to 6 carbon atoms, and the salts thereof of pharmaceutically acceptable acids. The compounds possess antianginal activity and are used in the preparation of medicaments for antianginal therapy.
摘要:
A novel process for the preparation of 3-bromo- and 3-chloro-5-substituted isoxazoles is provided. Dibromo- or dichloro-formaldoxime is reacted with an excess of an 1-alkyne derivative of the formulaR--C.tbd.CHwhere R is hydrogen, phenyl or 1-6 C alkyl optionally substituted by halogen, OH, OR', CHO, COR', COOR', CONH.sub.2, CONR'R" or NHCOR' where, in turn, R' and R", which may be the same or different, are a 1-6 C alkyl or haloalkyl, in the presence of (i) at least an equimolecular amount, with respect to the dibromo- or dichloro-formaldoxime, of an alkaline base selected from the class consisting of sodium and potassium carbonate and bicarbonate and (ii) an inert solvent in which the 1-alkyne is soluble at room temperature.