摘要:
Composition comprising at least a first and at least a second excipient mixed with a crystalline active principle in particles with a maximum particle size of less than 500 µm, the active principle being a piperidine derivative substituted in the 1,4 position of formula
or a pharmaceutically acceptable salt thereof, and in which the first excipient is a non-ionic tensioactive agent.
摘要:
The invention relates to new 1,4-dihydropyridine derivatives of the general formula I
in which R¹, R², R³ and n have the meaning stated in the patent claims. The compounds of the invention have a vasodilatory effect and are therefore suitable for the treatment of hypertension. Some of the compounds have a vasoconstrictory effect and can therefore be used for the treatment of hypotension.
摘要:
4-alkyl-1,4-dihydropyridines with activity antagonistic of the PAF-"aceter" of formula (I) are described, in which R is a saturated alkyl chain C1-2; R' is a saturated or unsaturated C1-16 lineal, branched or cyclic chain that can be interrupted by an oxygen atom and can also represent a 2-(N-morpholine) ethyl group; n is 2 or 3; X is oxygen, sulphur or SO2; Ar represents an aromatic ring that cannot be phenyl when X=S and n=2. The compounds (I) can be prepared (a) by reaction of (II) with (III) and with (IV); or (b) by reacting (V) with (VI) and (IV); or (c) by reaction of (VII) with (VI). In these formulas the different radicals have the meaning given above. Compounds of formula (I) are used for the treatment of pathologic states and disorders in which the PAF-"aceter" participates, being used, for example, in treatment of inflammatory processes, psoriasis, glomerulitis, transplant rejection, acute and chronic bronchitis, bronchial asthma, states of shock and allergies Likewise it is used for the treatment of pathologic states and disorders in which it is necessary to stimulate the cellular immunity such as in immunodeficient syndromes and other situations in which the defense capacity is reduced.
摘要:
The present invention refers to 1,4-dihydropyridines,to processes for their preparation and to their use as antithrombotic drugs. Said new 1,4-dihydropyridines have the following general formula (I) wherein R represents hydrogen or a saturated or unsaturated alkyl group, with a linear or branched chain of 1 to 8 carbon atoms, R¹ represents an alkyl radical with a linear, branched or cyclic, saturated or unsaturated chain of 1 to 12 carbon atoms, which may be interrupted by an oxygen or by a 2-(N-salicylamido)ethyl group, n is a number equal to 1 or 2. These 1,4-dihydropyridines are obtained by processes based on the Hantzch reaction or on modifications thereof.
摘要:
The invention relates to new 1,4-dihydropyridine derivatives of the general formula I
in which R¹, R², R³ and n have the meaning stated in the patent claims. The compounds of the invention have a vasodilatory effect and are therefore suitable for the treatment of hypertension. Some of the compounds have a vasoconstrictory effect and can therefore be used for the treatment of hypotension.
摘要:
It mainly comprises the application of this product as a therapeutic agent used to treat patients with arteriosclerosis and/or re-stenosis that suffer a serious risk of occlusion of the vessels affected by the disease. Said product can be administered orally or parenterally, combined with other drugs or alone, to patients with arteriosclerotic disease to reduce the atheromatous lesion as well as to prevent re-stenosis of the blood vessels.