Abstract: Compounds of the general formula ##STR1## wherein R.sub.1 is n-propyl or cyclobutyl;R.sub.2 is isopropyl, tertiary butyl, cyclobutyl, cyclopentyl or cyclohexyl;R.sub.3 is hydrogen;R.sub.4 is hydrogen or methyl;as (R)-enantiomer in the form of free base or pharmaceutically acceptable salts thereof, process for their preparation, pharmaceutical composition, use of and method of treatment of disorders in CNS.

Abstract: Compounds of the formula I ##STR1## processes for their preparation, pharmaceutical preparations, use of and method of treatment of disorders in CNS by using compounds of formula I.

Abstract: 3-amino-5-carbamoylchromans and 8-fluoro-3-amino-5-carbamoylchromans, as well as enantiomers and salts thereof, are disclosed. Pharmaceutical compositions containing the compounds as active ingredients are also disclosed. The compounds are useful in the treatment of 5-hydroxytryptamine-mediated disorders of the central nervous system.

Abstract: Compounds of the formula ##STR1## wherein R is H or CH.sub.3, n is 1 or 2 and X is F, Cl, Br, I bound in an optional position to the phenyl group, provided that when X is Br it is bound in a position other than the 4 position, processes for their preparation and phrmaceutical preparations, methods of treatment employing such compounds. The compounds are useful for therapeutic treatment of various kinds of depressive conditions.

Abstract: A compound of the general formula ##STR1## and pharmaceutically acceptable salts thereof, in which formula the groups R.sup.0 are the same or different and are selected from the group consisting of hydrogen, halogen, alkyl having 1, 2 or 3 carbon atoms, and alkoxy having 1, 2 or 3 carbon atoms; R.sup.1 and R.sup.2 are methyl; R.sup.3 and R.sup.4 are the same or different and are hydrogen or an alkyl group having 1, 2 or 3 carbon atoms; and n is 0. Pharmaceutical preparations containing these compounds are useful for treatment of depressive disorders.

Abstract: A compound of the general formula ##STR1## and pharmaceutically acceptable salts thereof, in which formula the groups R.sup.o are the same or different and are selected from the group consisting of hydrogen, halogen, alkyl having 1, 2 or 3 carbon atoms, and alkoxy having 1, 2 or 3 carbon atoms; R.sup.1 is hydrogen, methyl or ethyl; R.sup.2 is methyl or ethyl; R.sup.3 and R.sup.4 are the same or different and are hydrogen or an alkyl group having 1, 2 or 3 carbon atoms; and n is 0, 1 or 2. Pharmaceutical preparations containing these compounds are useful for treatment of depressive disorders.

Abstract: A compound of the formula ##STR1## or a pharmaceutically acceptable acid addition salt thereof, in which formula the group R.sup.0 is selected from the group consisting of hydrogen, chlorine, bromine, methyl, trifluoromethyl and methoxy.Pharmaceutical compositions containing these compounds are useful for treatment of depressive disorders.

Abstract: Compounds of the formula ##STR1## and pharmaceutically acceptable salts thereof, wherein X and Y are the same or different and each represents a hydrogen atom, a chloro or a methoxy group, n is an integer 0 or 1 and R.sup.1 and R.sup.2 are the same or different and each representing a hydrogen atom or a methyl group; processes for their preparation; pharmaceutical preparations containing at least one of these compounds and the use thereof in the treatment of depressive states.

Abstract: A compound of the formula ##STR1## and pharmaceutically acceptable acid addition salts thereof, in which formula the group R.sup.o is selected from hydrogen, chlorine, bromine, methyl, trifluoromethyl and methoxy.Pharmaceutical compositions containing these compounds are useful for treatment of depressive disorders.