摘要:
The invention relates to new cyclic imines of the general formula (I), ##STR1## wherein A represents carbonyl or hydroxymethylene,B is oxygen or imino,R stands for hydrogen or lower alkyl,X.sub.1 and X.sub.2 may be the same or different and represent hydrogen, halogen, lower alkyl or alkoxy, amino or nitro,n is 6 or 7, andm is 0 or 1,and pharmaceutically acceptable acid addition salts and quaternary salts thereof. The invention relates further to a process for the preparation of said compounds, to pharmaceutical compositions containing said compounds as the active ingredient and to a process for the preparation of said pharmaceutical compositions.The cyclic imine derivatives of the invention possess valuable antiarrhythmic properties and can be used to advantage in the treatment of cardiovascular diseases.
摘要:
The invention relates to new bicyclo(2.2.1)heptane derivatives of the general formula I ##STR1## wherein R represents a C.sub.1-12 alkyl group optionally substituted by a lower alkoxy group, a C.sub.2-4 alkenyl group or a phenyl-(lower alkyl) group optionally substituted on (I), phenyl ring by one or more lower alkoxy groups or halogen atoms.The invention relates further to plant growth regulating compositions comprising as active agent 0.001 to 95% by weight of a racemic and/or optically active compound of the general formula I, wherein R has the above defined meanings, along with a conventional organic or inorganic, solid and/or liquid carrier and/or filler and/or diluent and/or surfactant.The invention encompasses also the preparation of the compounds of the general formula (I) which comprises reacting a racemic or optically active compound of the general formula (II) ##STR2## wherein Y is an oxygen or sulfur atom or an oxim group, with a compound of the general formula (III)R--XwhereinR is as defined above, andX represents a leaving group, preferably a halogen atom, a sulfonyloxy or an aminooxy group, with the proviso that when using a compound of the general formula (II), in which Y is an oxim group, X is other than aminooxy group,in the presence of a basic condensing agent, and optionally resolving the racemic compound of the general formula (I) obtained into its optically active antipodes.
摘要:
New compounds are disclosed of the formulae ##STR1## or pharmaceutically effective salts thereof, wherein R is hydrogen, C.sub.1-12 alkyl, or R is phenyl or phenyl-C.sub.1 to C.sub.4 alkyl wherein the phenyl can be substituted with 1 to 3 halogen, C.sub.1 to C.sub.4 alkyl, or C.sub.1 to C.sub.4 alkoxy substituents; andX.sub.1, X.sub.2 and X.sub.3 are hydrogen, C.sub.1 to C.sub.6 alkanoyl, or C.sub.1 to C.sub.6 haloalkanoyl; and where X.sub.1 is hydrogen, X.sub.2 and X.sub.3 are not simultaneously hydrogen. The compounds possess antiphlogistic, analgesic, anticonvulsive, or tranquilizing properties.
摘要:
The invention relates to new benzo-as-triazine derivatives of the formulae (I) and (Ia) and pharmaceutically acceptable acid addition salts thereof, ##STR1## wherein R.sub.1 and R.sub.2 each represent hydrogen, a C.sub.1-20 alkylcarbonyl group, a phenylcarbonyl or phenyl-(C.sub.1-4 alkyl)-carbonyl group having optionally one or more halogen, hydroxy or C.sub.1-3 alkoxy substituents which may be the same or different, furthermore a pyridylcarbonyl, a pyrazinylcarbonyl, a furylcarbonyl, a chloroacetyl or a C.sub.1-4 alkoxycarbonyl group, orR.sub.1 and R.sub.2 may form, together with the adjacent nitrogen atoms, a pyrazole ring having optionally a C.sub.1-6 alkyl substituent in position 4,with the proviso that one of R.sub.1 and R.sub.2 is always different from hydrogen,R.sub.3 stands for hydrogen, mercapto group, a C.sub.1-4 alkylmercapto group, amino group, a C.sub.1-4 alkylamino group, a piperazino group having optionally an N-alkyl or 2-pyridyl substituent, a morpholino group or a piperidino group, andR.sub.4 stands for hydrogen, halogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy group.The compounds of the formulae (I) and (Ia) are prepared by acylating the respective 2,4,5-unsubstituted 4,5-dihydro-benzo-as-triazine derivatives.The new compounds of the formulae (I) and (Ia) possess analgesic, antiphlogistic and narcosis-potentiating effects.
摘要:
The invention relates to novel pyrazolo[1,5-c]quinazoline derivatives of the general formula I ##STR1## wherein R represents a hydrogen atom, a C.sub.1-4 alkyl group or an acyl group,R.sub.1 represents a hydrogen atom, a C.sub.1-12 alkyl group, a C.sub.3-8 cycloalkyl group, a C.sub.2-4 alkenyl group, an aralkyl group, wherein the alkyl group has 1 to 4 carbon atoms, a phenylalkenyl group, wherein the alkenyl group has 2 to 4 carbon atoms, furthermore a carboxy group or a phenyl group optionally substituted by one or more substituents selected from the group consisting of halogen, hydroxy, C.sub.1-4 alkoxy, nitro or di(C.sub.1-4 alkyl)amino groups, orR and R.sub.1 may form together a valence bond,R.sub.2 represents a hydrogen atom, a C.sub.1-4 alkyl or a phenyl group, orR.sub.1 and R.sub.2 may form together a C.sub.2-7 alkylene group,R.sub.3 represents a nitro group, an amino group, an alkylamino group, a dialkylamino group, wherein the alkyl groups have 1 to 4 carbon atoms, an alkylideneimino group, wherein the alkylidene group has 1 to 4 carbon atoms, a benzylideneimino group or an acylamino group,and pharmaceutically acceptable acid addition salts thereof.The novel compounds of the general formula I can be employed primarily as analgesic agents.
摘要:
The invention relates to a composite insect attractant for male cabbage moths (Mamestra brassicae) containing (Z)-11-hexadecenyl acetate and (Z)-11-heptadecenyl acetate as active agents in a weight ratio of 70 to 90:80 to 1, optionally along with a liquid or solid adjuvant. An insect trap can contain the composition which is used for attracting and trapping cabbage moth. Their mating is disrupted by air permeation techniques. (Z)-11-heptadecenyl acetate is a synergistically active new compound. The composition according to the invention produces a significantly stronger stimulating reaction on male cabbage moths than the known sex lure compositions.
摘要:
A plant protecting composition with pesticidal effects contains an effective amount of at least one compound of the formula ##STR1## wherein R is a C.sub.1-20 alkyl group or a phenyl or phenyl-C.sub.1-3 alkylene group having optionally one or more C.sub.1-3 alkyl or halogen substituents on the phenyl ring, and a diluent in an amount necessary to make up the final weight of the composition. To kill plant pests, the composition is applied to growing plants either prior to or after emergence.
摘要:
The invention relates to a novel process for producing the threo- and erythro-isomers of 1-phenyl-2-nitro-1,3-propanediol through the aldol-type alkaline condensation of benzaldehyde and nitroethanol, wherein the reaction mixture is acidified and, if desired, the isomers are separated from the obtained isomer mixture and the obtained isomers are transformed into each other through epimerization, characterized in that the condensation and, if desired, also the epimerization are carried out in the presence of catalytical amounts of an alkaline hydroxide.The process according to the invention makes it possible to produce 1-phenyl-2-nitro-1,3-propanediol, an intermediate of the antibiotic chloramphenicol, in high yields, and in an extremely advantageous way which can be carried out simply and economically even on an industrial scale.
摘要:
In a process for the preparation of DL-threo-1-(p-nitrophenyl)2-acetamino-1,3-propanediol from the isopropanol solution of DLthreo-1-(p-nitrophenyl)-2-acetamino-1,3-propanediol aluminiumalcoholate compounds formed in the Meerwein-PonndorfVerley reduction of p-nitro- Alpha -acetamino- Beta -hydroxypropiophenon via aqueous or aqueous-mineral acidic hydrolysis, evaporation and removal of the aluminium salt, the improvement that prior to or simultaneously with the separation of isopropanol the aluminium alcoholates formed in the reduction are hydrolyzed in the presence of the calculated amount or less, but not lower than 50 % of water, water vapour or of an equivalent amount of aqueous mineral acid solution, isopropanol is distilled out continuously, the powdery mixture of DL-threo-1-(pnitrophenyl)-2-acetamino-1,3-propanediol and aluminium oxide is treated to remove aluminium in the form of its double salt and optionally the hydrolysis is completed in this leaching step, and DL-threo-1-(p-nitrophenyl)-2-acetamino-1,3-propanediol is separated. This improved process can be carried out continuously with high yields and under optimum conditions, also making possible an almost complete recovery of isopropanol.
摘要:
3-Amino-as-triazino(6,5-c)quinoline or its 1-oxide can be prepared as follows: 4-chloro-3-nitroquinoline is reacted with guanidine, the formed 4-guanidino-3-nitroquinoline is subjected to ring closure in an alkaline medium, and, if desired, the 1oxide group of the thus-obtained 3-amino-as-triazino(6,5-c)quinoline-1-oxide is split off under reductive conditions, the obtained 3-amino-1,2-dihydro-as-triazino(6,5-c)quinoline is oxidized into 3-amino-as-triazino(6,5-c)quinoline, and, if desired, any compound obtained by the above process is converted into its salt. The compounds of the invention are novel and possess valuable anti-inflammatory and antimicrobial activities.