摘要:
The invention provides compounds of formula I: wherein R1-R4 have any of the values defined in the specification, and salts thereof. The compounds are useful as dopamine receptor modulators for the treatment of diseases where modulation of dopamine receptors is implicated (e.g. sexual dysfunction, prolactinoma, Parkinson's disease, and Cushings disease).
摘要:
A formulation and a method for manufacturing pergolide mesylate is disclosed whereby substantially stable pergolide mesylate can be manufactured without having to introduce stabilizing additives.
摘要:
The invention relates to novel derivatives of ergoline of the general formula 1 in which R1 together with the two adjacent N atoms is the residue of a diamine and R4 together with the two adjacent carbonyl groups is the residue of a dicarboxylic acid. R2, R3, R6, R7, R8 can be H or an organic radical. R7 and R8 are H or together are a bond. The compounds show a strong antihypertensive effect. These effects moreover occur after intravenous and enteral administration even at dosages in the region of a few &mgr;g/kg (body weight). The compounds can accordingly be used as pharmaceuticals for hypertensive diseases in human medicine.
摘要:
Salts of a pharmacologically active, naturally occurring or synthetic alkaloids, or alkaloid derivatives and a phosphatidic acid are provided, which preferably have the formula[Alk].sub.x [PA].sub.ywhereinAlk represents a cation derived from said pharmacologically active, naturally occurring or synthetic alkaloid, or alkaloid derivative,PA represents a phosphatidic acid or a mixture of different phosphatidic acids, andx:y is from 2:1 to 1:2.The therapeutic use of the salts of the invention in the treatment of syndromes affecting the elderly, particularly conditions that are related to changes in cerebral metabolism and reduced blood flow are decribed, as well as cosmetic methods.
摘要翻译:提供药理活性的天然存在或合成的生物碱或生物碱衍生物和磷脂酸的盐,其优选具有式[Alk] x [PA] y,其中Alk表示衍生自所述药理学活性的天然存在或合成的阳离子 生物碱或生物碱衍生物,PA代表磷脂酸或不同磷脂酸的混合物,x:y为2:1至1:2。 本发明的盐在治疗影响老年人的综合征中的治疗用途,特别是与脑代谢变化和血流量减少有关的病症,以及美容方法。
摘要:
The invention relates to a novel stereoselective process for the preparation of dihdyrolysergol from lysergol by hydrogenation in the presence of solvent and palladium catalyst applied on a carrier, which comprises hydrogenating lysergol in the presence of one or more aprotic solvent(s) containing tertiary nitrogen atom(s) and a palladium catalyst applied on activated carbon, and recovering the product obtained from the reaction mixture in a known manner.
摘要:
t-alkyl eroline derivatives of formula I are produced ##STR1## wherein (R.sub.1 =H, OCH.sub.3 and R.sub.2 H) or (R.sub.1 +R.sub.2 =a ring bond and R.sub.3 =H, optionally substituted nicotinynoyl or 1-oxo-2-cyclopenten-3-yl); and their pharmaceutically acceptable salts.A process for the preparation of these derivatives from lysergol and a t-alkyl alcohol is also described, as are pharmaceutical compositions containing them.
摘要:
The invention relates to a novel process for the halogenation in 2-position of ergot alkaloids. The process is characterized by that as a halogenating agent a system consisting of dimethylsulfoxide, a trialkylhalosilane or triarylhalosilane and optionally a hydrogen halide is used.
摘要:
The invention relates to a novel process for the preparation of partially new 2-halonicergoline derivatives of the formula (I), ##STR1## wherein X stands for chlorine, bromine or iodine atom, as well as their acid addition salts.The process of the invention comprises esterifying a novel 2-halo-1-methyllumilysergol of the formula (II), ##STR2## wherein X is the same as defined above, or an acid addition salt thereof and, if desired, converting the thus-obtained 2-halonicergoline derivative of the formula (I) to an acid addition salt.The compounds of the invention improve the cognitive function of the brain and show an antihypoxic as well as a strong .alpha.-adrenerg blocking and calcium-antagonistic action.
摘要:
The invention relates to ergoline derivatives having the general formula (I): ##STR1## where R=H, CH.sub.3 ; R.sub.1 =H, halogen, CH.sub.3, phenylthio, C.sub.1 -C.sub.4 alkylthio; R.sub.2 =H, CH.sub.3 O, and R.sub.3 =H or R.sub.2 +R.sub.3 =chemical bond; R.sub.4 =C.sub.1 -C.sub.4 hydrocarbon; R.sub.5, R.sub.6, R.sub.8, R.sub.9 independently=H, C.sub.1 -C.sub.4 alkyl, or R.sub.5, R.sub.8 independently=H, C.sub.1 -C.sub.4 alkyl and R.sub.6 +R.sub.9 =CH.sub.2 CH.sub.2, CH.sub.2 CH.sub.2 CH.sub.2 ; R.sub.7 =H, C.sub.1 -C.sub.4 alkyl, phenyl, NR'R"; R',R" independently=H, C.sub.1 -C.sub.4 alkyl, acyl or NR'R"=heterocyclic ring; W=0, H.sub.2 ; n=0, 1, 2, and their pharmaceutically acceptable salts, these compounds exhibiting antihypertensive activity making them useful anxiolytic and antipsychotic agents. A process for their preparation and pharmaceutical compositions containing them are also described.
摘要:
Compounds of formula I: ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 represents a hydrogen or halogen atom or a methyl, cyano, C.sub.1 -C.sub.4 alkylthio or phenylthio group; R.sub.7 and R.sub.8 represent hydrogen atoms and R.sub.3 represents a hydrogen atom or a methoxy group, or R.sub.7 represents a hydrogen atom and R.sub.3 and R.sub.8 taken together represent a bond, or R.sub.3 represents a hydrogen atom or a methoxy group and R.sub.7 and R.sub.8 taken together represent a bond; R.sub.4 represents a hydrocarbon group having from 1 to 4 carbon atoms; R.sub.5 represents a hydrogen atom or a hydrocarbon group having from 1 to 4 carbon atoms or a phenyl group; X represents an oxygen or sulphur atom or an imino group, R.sub.9 represents a hydrogen atom and B represents a cyano, a C.sub.2 -C.sub.5 alkoxycarbonyl or carbamoyl group, or R.sub.9 and B taken together represent a ##STR2## group wherein W represents an oxygen atom or an imino group; A represents a group of the formula CHR.sub.6, CH.sub.2 --CHR.sub.6 or CH.dbd.CR.sub.6 group wherein R.sub.6 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; and n is 0, 1 or 2; and their pharmaceutically acceptable salts are disclosed, along with the use of these compounds as antiprolactinic and antihypertensive agents. The preparation of these compounds and pharmaceutical compositions containing them are also described.