There are disclosed compounds of the formula R.sup.1 -X wherein R.sup.1 is alkyl of 8-22 carbon atoms; X is ##STR1## R.sup.2 is --(CH.sub.2).sub.n NR.sup.4 R.sup.5 ; R.sup.3 is hydrogen or lower alkyl; R.sup.4 is hydrogen or lower alkyl; R.sup.5 is hydrogen or lower alkyl; and n is 0-7, with the proviso that when X is ##STR2## n is 6-7; and their use in the prevention and/or treatment of conditions such as allergic rhinitis, allergic bronchial asthma and other naso-bronchial obstructive air-passageway conditions, other immediate hypersensitivity reactions such as allergic conjunctivitis and various inflammatory conditions.