Abstract: A triazolo-1,4-diazepine compound having the formula (I): wherein A represents CO, CO—B, or B, B represents a C1 to C6 alkylene group or a C2 to C6 alkylene group having an oxygen atom interposed in the middle thereof, X represents N—O or CH, n represents an integer of 2 to 6, R represents a hydroxyl group, a C1 to C6 lower alkyloxy group or a C1 to C6 lower alkylamino group, provided that these groups may be substituted with an N,N-dimethylamino group, an N,N-diethylamino group, a phenyl group, or a heterocyclic group, and R1 represents a hydrogen atom or a C1 to C3 lower alkyl group having both a PAF antagonistic action and a thromboxane synthesis inhibiting action, and a pharmaceutical composition containing the same as an active ingredient.

Abstract: A 1,4-dihydropyridine compound having the formula (I): ##STR1## wherein, R.sup.1 indicates --COO--A--(3-pyridyl), A indicates a C.sub.3 -C.sub.6 straight chain alkylene group in which one piperazine may be interposed; R.sup.2 indicates a C.sub.2 -C.sub.10 alkyl group, alkenyl group or alkynyl group; a lower alkyl group or lower alkenyl group having a substituent; or a cycloalkyl group which may have a substituent; R.sup.3 indicates the same group as R.sup.1 or --COO--R.sup.4 ; and R.sup.4 indicates a lower alkyl group which may have a substituent or its pharmacologically acceptable salt and an anti-allergenic drug, antiphlogistic, drug for overcoming resistance to anti-cancer drugs, or drug for reinforcing the effect of anti-cancer drugs containing the same as effective ingredients.

Abstract: The present invention relates to novel imidazo-[2,1-b]benzothiazole compounds represented by formula (I) and pharmacological acceptable salts thereof: ##STR1## wherein R.sub.1 represents a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms; R.sub.2 represents a ##STR2## group (wherein X and Y, which may be the same or different, each represents a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted phenyl group), a --CH.sub.2 --O--Z group (wherein Z represents a lower alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted benzyl group) or a --CH.sub.2 --O--CO--W group (wherein W represents an alkyl group having 1 to 8 carbon atoms, an alkylamino group having 1 to 8 carbon atoms, a substituted or unsubstituted phenyl group or a thienyl group); and R.sub.3 ; R.sub.4 and R.sub.