Compounds of the formula ##STR1## wherein X is .beta.-CH.sub.2 OH or CO and R.sub.2 is F, Cl or CH.sub.3, and their physiologically acceptable 21-esters are useful for the treatment of allergic diseases of the respiratory tract and for the treatment of topical and systemic inflammatory conditions.
化合物的公式为##STR1##其中X是.beta.-CH.sub.2 OH或CO,R.sub.2是F,Cl或CH.sub.3,它们的生理上可接受的21-
酯类化合物对于治疗呼吸道过敏疾病和局部和全身性炎症状况非常有用。