Abstract: Compounds of the formula ##STR1## wherein R.sub.2 is lower alkyl and each of rings A and B is unsubstituted or substituted by a member selected from the group consisting of nitro, trifluoromethyl, halogen, alkyl and alkoxy, and processes for their preparation.

Abstract: There is disclosed a novel heterocyclic compound of the general formula: ##STR1## wherein each of R.sup.1 and R.sup.2 represents hydrogen atom, or an alkyl group which may be substituted by alkyl-substituted amino, hydroxy or alkoxy group, or R.sup.1 and R.sup.2 may form a heterocyclic ring together with the nitrogen atom adjacent thereto; R.sup.3 represents hydrogen atom or a lower alkyl group; P.sub.y represents a pyridyl group; B represents a lower alkylene group which may have lower alkyl group as a substituent; Y represents oxygen atom, sulfur atom or --NH-- group; and ring A is either unsubstituted or substituted by halogen atom, nitro, lower alkyl, lower alkoxy or polyhalo-lower alkyl group. This class of compounds is found to be useful as medicine in human and animal therapy, which act on the central nervous system, for example, muscle relaxants, anticonvulsants, sedatives, minor tranquilizers. There is also disclosed intermediates for the production of said compound.

Abstract: A novel triazole derivative of the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, represent alkyl group or aralkyl group and one of R.sup.1 and R.sup.2 may be hydrogen atom, or R.sup.1 and R.sup.2 form a heterocyclic ring together with the nitrogen atom adjacent thereto; R.sup.3 represents hydrogen atom or a hydrocarbon residue; R.sup.4 represents hydrogen atom or a lower alkyl group; Py represents a pyridyl group; and the ring A is either unsubstituted or substituted by halogen atom, nitro, alkyl, alkoxy or trifluoromethyl group, and pharmaceutically acceptable acid addition salts thereof are found to be useful as medicine in human and animal therapy, as these compounds act on the central nervous as for example, muscle relaxants, anticonvulsants, sedatives, minor tranquilizers, etc.

Abstract: There is disclosed new thienodiazepine derivatives of the general formula: ##STR1## wherein R.sup.1 represents a carboxyl group which may be esterified or amidated; each of R.sup.2 and R.sup.3 represents hydrogen atom or a lower alkyl group, or R.sup.2 and R.sup.3 may bond to each other to form an alkylene group; R.sup.4 represents a phenyl group which may have substituent; and R represents hydrogen atom, an acyl group or an alkyl group, or its pharmaceutically acceptable acid addition salts. The above compounds are useful as medicine in human and animal therapy, which act on the central nervous system, for example, as muscle relaxants, anticonvulsants, sedatives, minor tranquilizers, etc.

Abstract: A novel heterocyclic compound of the general formula: ##STR1## wherein R.sup.1 represents hydrogen atom or a hydrocarbon residue; R.sup.2 represents hydrogen atom or a lower alkyl group; Py represents a pyridyl group; Y represents an ethylene or a trimethylene group which may have lower alkyl group as substituent; Z represents oxygen atom, sulfur atom or --NH-- groups; and the ring A is either unsubstituted or substituted by a halogen atom, nitro, alkyl, alkoxy or trifluoromethyl group, is found to be useful as medicine in human and animal therapy, as these compounds act on the central nervous system, as, for example, muscle relaxants, anticonvulsants, sedatives, minor tranquilizers, etc.

Abstract: Novel compounds of the formula, ##SPC1##Wherein ##EQU1## stands for the partial structure ##SPC2## WHEREIN R.sup.1 stands for hydrogen atom, an alkyl group or phenyl group, R.sup.2 and R.sup.3 stand for, the same or different, hydrogen atom or a lower alkyl group and rings A and B are unsubstituted or substituted by one or more, he same or different, of halogen atom, nitro, trifluoromethyl, a lower alkyl group or a lower alkoxy group, have sedative, anti-inflammatory, anti-convulsive, sleep-potentiating and diuretic activites.