The subject invention involves compounds having the following structure: ##STR1## wherein: (a) R is unsubstituted C.sub.1 -C.sub.3 alkanyl or alkenyl; (b) R' is selected from hydrogen; unsubstituted C.sub.1 -C.sub.3 alkanyl or alkenyl; unsubstituted C.sub.1 -C.sub.3 alkylthio or alkoxy; hydroxy; thiol; cyano; and halo; and (c) R" is selected from hydrogen, methyl, ethyl and i-propyl. The subject invention also involves pharmaceutical compositions containing such novel compounds, compositions thereof and the use of such compounds for preventing or treating respiratory, ocular and/or gastrointestinal disorders.
本发明涉及具有以下结构的化合物:##
STR1##其中:(a) R为未取代的C.sub.1-C.sub.3烷基或
烯基;(b) R'选自
氢;未取代的C.sub.1-C.sub.3烷基或
烯基;未取代的C.sub.1-C.sub.3烷
硫基或烷
氧基;羟基;
硫醇基;
氰基;和卤基;以及(c) R"选自
氢、
甲基、乙基和
异丙基。本发明还涉及含有这种新化合物的药物组合物、其组成物和使用这种化合物预防或治疗呼吸道、眼部和/或胃肠道疾病。