Abstract: Compounds of formula I ##STR1## wherein R.sub.1 is hydrogen or C.sub.1-4 alkyl; R.sub.2 is hydrogen and R.sub.3 is hydrogen or C.sub.1-4 alkyl, or R.sub.2 and R.sub.3 together represent an additional bond as indicated by the dotted line; R.sub.4 is hydrogen, C.sub.1-4 alkyl or phenyl; R.sub.5 is methoxy or ethoxy; R.sub.6 is hydrogen, hydroxy, C.sub.1-4 alkoxy, hydroxy-(C.sub.2-4 alkoxy) or (C.sub.1-4 alkoxy)-(C.sub.2-4 alkoxy); R.sub.7 and R.sub.8 are each independently C.sub.1-4 alkoxy or (C.sub.1-4 alkoxy)-(C.sub.2-4 alkoxy); and R.sub.9 is hydrogen or halogen,in free form or pharmaceutically acceptable salt form, have pharmaceutical utility, in particular as bronchodilators, eosinophil accumulation and/or activation inhibiting agents and in the treatment of prophylactic treatment of obstructive or inflammatory airways diseases.

Abstract: Piperidylidene derivatives of formula ##STR1## wherein n is 2 or 3, R.sub.1 comprises a tricyclic nucleus and R.sub.2 is hydrogen or an acid residue, useful in the treatment and prophylaxis of asthmatic conditions.

Abstract: The invention provides compounds of formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl, R.sub.3 is hydrogen, alkyl, alkenyl, phenylalkyl or a group --(CH.sub.2 --CH.sub.2 --O).sub.n --R.sub.4 in which n is 1 to 3 and R.sub.4 is hydrogen or an acid residue, and the ring A is unsubstituted or substituted, with the proviso that when R.sub.3 is methyl the ring A is substituted. The compounds are useful in the treatment and prophylaxis of allergic conditions.

Abstract: The present invention provides a compound of the formula ##STR1## which possesses pharmacological activity, for example anti-psychotic activity.

Abstract: This invention provides compounds of formula I, ##STR1## wherein R.sub.1 is alkyl of 4 to 8 carbon atoms; cycloalkyl of 4 to 6 carbon atoms; phenethyl or phenethyl monosubstituted in the phenyl residue with fluorine, chlorine, bromine, methoxy or alkyl of 1 to 4 carbon atoms; 2-tetrahydrofurylmethyl or 2-furylmethyl,Useful as analgesic agents.

Abstract: The present invention concerns new heterocyclic compounds of the formula: ##SPC1##WhereinR.sub.1 and R.sub.2 are inter alia alkyl, chlorine or methoxy,R.sub.3 is hydroxy, alkylcarboxy or monoalkylcarbamoyloxy, andA is protected or unprotected carbonyl.The compounds possess analgesic and central nervous system depressant properties.