Abstract: The present invention relates to the compounds of formula ##STR1## in which X.sub.1 represents N or ##STR2## X.sub.2 represents N or ##STR3## provided that X.sub.1 and X.sub.2 are different from each other; R.sub.1 and R.sub.2 being --(CH.sub.2).sub.n OH wherein n is 1 to 4 or ##STR4## represents a saturated heterocycle with 5 or 6 groupings containing one nitrogen atom as heteroatom, substituted in 3 or 4 position for example by (CH.sub.2).sub.m OR.sub.6 where R.sub.6 is H or an acyl radical or an amido radical; to a process for preparing said compounds; and to the drugs containing said compounds active in particular on the central nervous system.

Abstract: The invention relates to compounds with a nitrogen-containing heterocyclic nucleus, of the general formula: ##STR1## in which: Ar represents a group ##STR2## or a naphthyl group optionally substituted by a halogen, A represents a heterocyclic nucleus chosen from the group consisting of the pyridine, pyrimidine and triazine nuclei, andX and Y, taken separately, denote a hydrogen atom in one case and a group OR.sub.3 (hydroxyl, carbamate or ester) in the other.The invention also relates to a process for the preparation of these compounds and their application as drugs acting on the central nervous system.

Abstract: Benzodiazepines of formula ##STR1## wherein R3 is methyl or ethyl and R4 is chlorine or fluorine are useful therapeutic agents for the treatment of neuropsychic disturbances.

Abstract: This invention relates to triazolo-pyrimidine derivatives corresponding to the following formula: ##STR1## wherein X represents a 2-pyridyl, 3-pyridyl or 4-pyridyl nucleus optionally substituted by at least one straight-chained or branched C.sub.1-4 alkoxy or alkyl or a hydroxy or cyano group,R.sub.1 represents hydrogen or a straight-chained or branched saturated or unsaturated C.sub.1-5 aliphatic group, andR.sub.2 represents a straight-chained or branched C.sub.1-4 alkyl group, and the pharmaceutically acceptable acid addition salts thereof with inorganic or organic acids.These compounds may be used in therapy, particularly on account of their cardiotonic activity.

Abstract: The present invention relates to a process for preparing 2-(1-piperazinyl) pyrimidines of formula: ##STR1## in which one of the groups T and Q represents hydrogen, a hydroxyl or lower alkanoyloxy group, and the other represents hydrogen; and X represents:a group --CO--R.sub.1a group ##STR2## an alkylene-COOY group an alkylene-CO--W group,according to which a 2-(1-piperazinyl) pyrimidine of formula: ##STR3## is reacted with a compound of formula AX in which A is selected from an atom of halogen and an activator group of the carboxylic function of the radical X.

Abstract: The present invention relates to new derivatives of formula: ##STR1## in which: R.sub.3 denotes a halogen, preferably chlorine, or a nitro group,R.sub.4 represents hydrogen or a lower alkyl group having from 1 to 4 atoms of carbon,R.sub.5 represents an atom of halogen, preferably chlorine or fluorine.It also relates to a process for preparing products of formula (II) and to the drugs containing at least one product of formula (II).

Abstract: The present invention relates to novel derivatives of 4-phenyl quinazoline of general formula: ##STR1## in which R.sub.2 is H or halogen or R.sub.1 is a hydroxyamino derivative of type ##STR2## in which at least R.sub.3 or R.sub.4 comprises an OH group or ##STR3## in which R.sub.5 comprises an OH group or ##STR4## it also relates to the drugs which may be used as minor tranquilizers, hypnotics and antiepileptics containing a product of formula (I).

Abstract: The invention relates to benzodiazepine compounds of the formula: ##STR1## wherein R.sub.5 is C.sub.1 -C.sub.4 alkyl, R.sub.3 is C.sub.1 -C.sub.4 alkyl, and R.sub.4 is selected from Cl and F, and medicaments containing such benzodizepine compounds.