The subject invention relates to methods for preventing or treating damage to the mucosal lining of the gastrointestinal tract of a human or lower animal by administering a safe and effective amount of a compound having the structure: ##STR1## wherein X and Y are each independently selected from O and S; R.sup.1, R.sup.2 and R.sup.3 are each independently selected from hydrogen, hydroxy, halo, unsubstituted or monosubstituted straight or branched C.sub.1 -C.sub.4 alkanyl, and unsubstituted or substituted straight or branched C.sub.1 -C.sub.4 alkanoxy; and each of R.sup.4, R.sup.5, R.sup.6 and R.sup.7 is hydrogen or, if one or more of R.sup.1, R.sup.2 and R.sup.3 is other than hydrogen, each of R.sup.4, R.sup.5, R.sup.6 and R.sup.7 is selected from hydrogen, halo, trifluoromethyl, and unsubstituted straight or branched C.sub.1 -C.sub.4 alkanyl.
本发明涉及一种通过给人类或低等动物的肠道黏膜层内给予具有以下结构的化合物的安全有效量,以预防或治疗肠道黏膜层损伤的方法:##STR1## 其中X和Y各自独立地选自O和S; R.sup.1、R.sup.2和R.sup.3各自独立地选自氢、羟基、卤素、未取代或单取代的直链或支链C.sub.1-C.sub.4烷基和未取代或取代的直链或支链C.sub.1-C.sub.4烷氧基;每个R.sup.4、R.sup.5、R.sup.6和R.sup.7都是氢,或者如果R.sup.1、R.sup.2和R.sup.3中有一个或多个不是氢,则每个R.sup.4、R.sup.5、R.sup.6和R.sup.7都选自氢、卤素、三
氟甲基和未取代或取代的直链或支链C.sub.1-C.sub.4烷基。