Abstract: There are described compounds of the formula ##STR1## in which either R.sup.1 and R.sup.2 are both hydrogen or R.sup.1 is carboxyl and R.sup.2 is hydrogen, C.sub.3-4 alkenyl or C.sub.1-4 alkyl, and R.sup.3, R.sup.4 and R.sup.5 are each hydrogen, nitro, hydroxyl, carboxyl, carboxyC.sub.1-2 alkoxy, C.sub.3-4 alkenyl, C.sub.1-4 alkyl, C.sub.3-4 alkenyloxy, C.sub.1-4 alkoxy or the group ##STR2## where R.sup.6 and R.sup.7 are each hydrogen or C.sub.1-4 alkyl; and salts and esters thereof. The compounds are indicated for use in the treatment of immediate sensitivity reactions and inflammatory diseases.

Abstract: There are described pharmacologically active compounds, useful in the treatment of allergic/inflammatory disorders involving SRS-A as causal mediator and which, in free acid form, are of formula I, ##STR1## in which R.sub.1 is (i) an aliphatic, saturated or unsaturated hydrocarbyl radical of up to 20 carbon atoms, unsubstituted or substituted by at least one substituent selected from halogen, hydroxy, C.sub.3-6 alkoxy, C.sub.3-6 cycloalkyl, aryl or heteroaryl, the cycloalkyl, aryl or heteroaryl being unsubstituted or substituted by at least one substituent selected from hydroxy, halogen and alkyl, alkenyl or alkynyl of up to 10 carbon atoms,(ii) cycloalkyl of 3 to 8 carbon atoms unsubstituted or substituted by alkyl, alkenyl or alkynyl of up to 16 carbon atoms, or(iii) aryl or heteroaryl, unsubstituted or substituted by hydroxyl, C.sub.1-4 alkoxy, halogen or alkyl, alkenyl or alkynyl of up to 16 carbon atoms; and R.sub.

Abstract: Substituted aurones of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are the same or different and can each represent hydrogen, halogen, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.3-8 cycloalkyl, optionally substituted phenyl, C.sub.1-6 haloalkyl, amido, amino, cyano, hydroxy, nitro, C.sub.2-4 alkenyl, carboxyl, tetrazol-5-yl and --CH.dbd.CHCOOH; orwherein R.sup.1 and R.sup.2 taken together can represent a group of formula --CH.dbd.CH--CH.dbd.CH-- provided that at least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is carboxyl, tetrazol-5-yl or --CH.dbd.CHCOOH;or a pharmaceutically-acceptable salt or ester thereof, are effective in the prophylactic chemotherapy of allergic conditions such as bronchial asthma.