摘要:
New hydroxymethyl-pyridine esters of the formula (I) ##STR1## wherein R represents a 9-xanthenyl group or a phenyl group substituted by a halogen atom or a trifluoromethyl group or by an alkyl or alkoxy group, either having 1 to 4 carbon atoms, and pharmaceutically acceptable acid addition salts and quaternary salts thereof are prepared by acylating the corresponding hydroxymethyl pyridines with a carboxylic acid of the formula R--COOH, or with a reactive derivative thereof, and, if desired, converting the obtained product of the formula I into a pharmaceutically acceptable acid addition salt or quaternary salt thereof. The new compounds exert beneficial effects on functional disorders of the heart.
摘要:
Piperazine derivatives having the formula (I) ##STR1## wherein R.sub.1 is C.sub.1-5 alkyl group which can have a phenyl, trimethoxyphenyl, phenoxy, methoxy-cyclohexyl or heptamethyleneimino substituent on the terminal carbon atom, allyl, phenyl which can have one or more halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, trihalomethyl or allyl substituents, or C.sub.2-5 alkoxycarbonyl;R.sub.2 is hydrogen or C.sub.1-4 alkyl; andR.sub.3 is furyl or a C.sub.5-6 cycloalkyl having a C.sub.1-4 alkoxy substituent, and acid addition salts or quaternary salts thereof with anti-arrhythmic and coronary dilatating pharmaceutical effects.
摘要:
The invention relates to novel piperazine derivatives having the formula (I), ##STR1## wherein R.sub.1 represents a C.sub.1-5 alkyl group having optionally a phenyl, trimethoxyphenyl, phenoxy, methoxy-cyclohexyl or heptamethyleneimino substituent on the terminal carbon atom, allyl group, a phenyl group having optionally one or more halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, trihalomethyl or allyl substituent(s), or a C.sub.2-5 alkoxycarbonyl group,R.sub.2 represents hydrogen or a C.sub.1-4 alkyl group, andR.sub.3 represents furyl group, 9-xanthenyl group or a C.sub.5-6 cycloalkyl group having a C.sub.1-4 alkoxy substituent,Or acid addition salts or quaternary salts thereof.The invention also relates to pharmaceutical compositions containing the above compounds, furthermore to a process for the preparation of the novel compounds and pharmaceutical compositions.The novel compounds according to the invention possess anti-arrhythmic and coronary dilatating effects.The novel compounds can be prepared by reacting a compound of the formula (II) ##STR2## with a compound of the formula (III),R.sup.3 --COOH (III)or a reactive derivative thereof.
摘要:
3-[4-(2'-Pyridyl)-piperazin-1-yl]-1-(3,4,5-trimethoxybenzoyloxy)-propane or a pharmaceutically acceptable acid-addition salt thereof in a composition with anti-arrhythmic activity.
摘要:
The invention relates to xanthene-9-carboxylates of the formula ##STR1## wherein R.sub.1 and R.sub.3 may be the same or different and represent a lower alkyl group,n and m each are integers of 2 to 5, or pharmaceutically-effective salts thereof. The compounds according to the invention possess cholinolytic and bronchospasmolytic effects and are completely devoid of harmful side-effects. Thus these compounds can be used to great advantage in therapy.
摘要:
The invention relates to new xanthene-9-carboxylates of the formula (I), ##STR1## wherein R.sub.1 and R.sub.3 are the same or different and each can represent a lower alkyl group,R.sub.2 is a lower alkyl group or a group of the formula (VI), ##STR2## WHEREIN M IS AN INTEGER OF 2 TO 5, OR R.sub.1 and R.sub.2 form, together with the adjacent nitrogen atom, a five- or six-membered heterocyclic group, and n and m each represent integers of 2 to 5, or salts thereof. These compounds possess cholinolytic and bronchospasmolytic effects and are completely devoid of harmful side-effects. Thus these compounds can be used to great advantage in therapy. The new compounds of the formula (I) or their salts can be prepared by reacting a diaminoalcohol of the formula (III), ##STR3## wherein R.sub.2 is lower alkyl or a group of formula -(CH.sub.2).sub.m -OH, with a reactive derivative of xanthene-9-carboxylic acid, and, if desired, converting the obtained product into its salt.
摘要:
The invention relates to novel N-hydroxy-substituted 1,2,3,6-tetrahydropyridine and piperidine derivatives of the formula ##STR1## wherein A, B, D, E, G, I and R are as defined in the specification, m is 0, 1 or 2, with the proviso that:m is 0 or 2, or both G and I are hydrogen, when A is benzyl or halogen-monosubstituted benzyl group; andm is 1, when A is 2-picolyl, as well as their pharmaceutically acceptable acid addition salts. The compounds of formula (I) are useful for enhancing the tolerance of mammals (including man) against hypoxic and/or ischaemic states as well as for treating the degenerative and functional disturbances arising from hypoxic and/or ischaemic results.
摘要:
A method of treating a mammalian subject for Parkinson's disease or to provide a central muscle relaxant effect, which comprises the step of administering to the mammalian subject in need of the treatment, a therapeutically effective amount of a compound of the Formula (I) ##STR1## wherein m is 1,2 or 3;R.sub.1 and R.sub.2 each independently stand for hydrogen, C.sub.1 to C.sub.4 straight or branched chain alkyl, C.sub.1 to C.sub.4 alkoxy, C.sub.5 to C.sub.7 cycloalkyl, or halogen; andB is a 5- or 6-membered saturated or unsaturated heterocyclic group containing a nitrogen heteroatom, the heterocyclic group being bound through its heterocyclic nitrogen atom to the remainder of the compound, and which can contain one or two additional heteroatoms selected form the group consisting of an oxygen heteroatom, a sulfur heteroatom, and one or two additional nitrogen heteroatoms, which may be as an .dbd.N--, --NH-- or --NR-- group, where R is a C.sub.1 to C.sub.5 alkyl or C.sub.1 to C.sub.5 alkycarbonyl group, the nitrogen-containing heterocyclic group is unsubstituted or substituted on one of its carbon atoms by C.sub.1 to C.sub.4 alkyl or C.sub.1 to C.sub.4 alkoxycarbonyl; or a pharmaceutically acceptable salt thereof.
摘要:
The invention relates to the preparation of cis and trans stereoisomers of racemic and optically active eburnamenine derivatives of the general formula (Ia) ##STR1## or (Ib), ##STR2## wherein R.sub.1 stands for a C.sub.1-4 alkyl group; andR stands for hydrogen, a C.sub.1-6 alkyl group, a C.sub.2-6 alkenyl group, an acyl or substituted acyl group,as well as their acid addition salts, of which the trans compounds are novel.The invention also relates to the compounds of the general formula (IIIa) ##STR3## and (IIIb), ##STR4## wherein R.sub.1 and R' represent a C.sub.1-4 alkyl group. The compounds of the general formulae (Ia) and (Ib) possess a vasodilatory effect which is substantially higher than that of pentoxifyllin, a known peripheral vasodilator.
摘要:
The present invention relates to a compound of the formula (I) ##STR1## wherein R.sup.1 stands for methyl or a group of the formula R.sup.3 --NH--(CH.sub.2).sub.4 --wherein R.sup.3 is hydrogen or a protective group being compatible with the peptide bond,R.sup.2 represents hydrogen, a protective group being compatible with the peptide bond or a cation derived from an organic or inorganic basethe pharmaceutically acceptable salts and diastereomers thereof.The compounds of the invention are useful for inhibiting the effect of the angiotensin converting ensime and they can be used in the therapy as blood pressure reducing agents and for the treatment of cardiac failure and glaucoma.