摘要:
A simplified process for the preparation of basically substituted phenylacetonitriles, in particular of verapamil, is described. This process is carried out with fewer stages and higher yields than the known processes according to the state of the art.
摘要:
1,3-Dioxolanyl derivatives corresponding to the general formula I ##STR1## are described. These compounds have an antimicrobial activity and may therefore advantageously be used in chemotherapy.
摘要:
Alkanol derivatives corresponding to the general formula IR.sup.1 R.sup.2 N--(CH.sub.2).sub.m --Q--CH.sub.2 X--CH.sub.2 --Y--(CH.sub.2).sub.n --NHR.sup.3 (I)which have a highly selective action on histamine-H.sub.2 receptors are described. Due to this action, these compounds may advantageously be used for treatment of diseases caused by raised gastric secretion.
摘要:
Pharmaceutical preparations having an antiphlogistic action are described. The preparations contain, as active ingredient, a benzazole derivative corresponding to the general tautomeric formulae I ##STR1## wherein X represents a sulphur or oxygen atom and R.sup.1 represents a hydrogen atom and R.sup.2 a hydroxymethyl, formyl, lower carbalkoxy or lower acyl group or R.sup.1 and R.sup.2 together represent the group ##STR2## wherein R.sup.3 and R.sup.4 denote, independently of one another, a hydrogen atom or a C.sub.1 -C.sub.6 -alkyl group, or they contain a physiologically acceptable salt thereof. These pharmaceutical preparations are suitable in particular for the treatment of inflammatory conditions and for inhibiting the lipoxygenase and/or cyclooxygenase route of arachidonic acid metabolism.
摘要:
The invention relates to quinazoline derivatives corresponding to the following general formula ##STR1## in which R is a mono- to trisubstituted 5-ring heterocycle from the group comprising triazoles, oxadiazoles, thiazoles and imidazoles, the heterocycle being attached to the piperazine or homopiperazine ring by a carbon atom, and n has a value of 2 or 3, or R represents an N-cyanophenyl imidocarbonate group, and to physiologically compatible salts thereof, to processes for their production and to medicaments containing these compounds.
摘要:
The invention relates to new pyridine-pyrimidinone derivatives corresponding to the following general formula ##STR1## wherein R.sup.1 represents linear C.sub.1-6 alkyl or cycloalkyl and R.sup.2 represents linear C.sub.1-6 alkyl or R.sup.1 and R.sup.2 together with the nitrogen atom form a pyrrolidine or piperidine ring;Alk represents a linear alkylene chain C.sub.1-6 ;Q represents a benzene ring, furan ring, thiophene ring or thiazole ring;X represents oxygen, Y is a single bond and m is 2, 3 or 4 when Q represents benzene;X represents methylene, Y represents sulfur and m is 2 or 3 when Q is furan, thiophene or thiazole; andR.sup.3 represents a hydrogen atom or a lower alkyl group.These compounds show improved H.sub.2 -antagonistic activity.
摘要:
A compound selected from a 2,4-diamino-5-thiobenzylpyrimidine of the formula: ##STR1## in which R is selected from hydrogen, alkyl, lower alkoxy, and halogen and R' is alkyl; and pharmacologically acceptable acid addition salts thereof. These compounds have an anti-bacterial action and are sulphonamide potentiators.
摘要:
A process for the production of 2,4-diamino-5-(3',4',5'-trimethoxybenzyl)-pyrimidine by condensing trimethoxy benzaldehyde with a substituted propionitrile compound and reacting the condensation product obtained with guanidine, wherein a .beta.-akyl-(aryl-, benzyl-)-oxy-ethyleneoxy-propionitrile corresponding to the formulaR--O--CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --CN (I)in which R represents an alkyl group, an optionally substituted phenyl group or a benzyl group, is condensed with trimethoxy benzaldehyde in the presence ofBasic reagents to form a compound corresponding to the general formula ##STR1## in which R is as defined above, and the condensation product (II) obtained is reacted with guanidine in known manner to form 2,4-diamino-5-(3',4',5'-trimethoxybenzyl)-pyrimidine.
摘要:
The invention relates to pyrimidine-thioalkyl pyridine derivatives corresponding to the following general formula ##STR1## in which R.sub.1 to R.sub.4, independently of one another, represent hydrogen, lower alkyl, halogen, amino or hydroxy groups, R.sub.5 represents a free electron pair or a lower alkyl group, a halogen atom, m has the value 0 or 1, the pyrimidine-thioalkyl group being bonded in the 2-, 3- or 4-position of the pyridine ring, and to therapeutically compatible acid addition salts thereof. The invention also relates to a process for producing the new pyrimidine-thioalkyl pyridine derivatives and to medicaments containing these compounds.
摘要:
1,3,4-Thiadiazole derivatives corresponding to the general formula I ##STR1## which constitute highly effective inhibitors for histamine-H.sub.2 receptors are described. These compounds in addition have a cytoprotective action.