Abstract: The subject invention relates to compounds having the structure: ##STR1## wherein (a) n is an integer from 1 to about 3;(b) X and Y are each independently selected from O, S and CH.sub.2, with at least one of X and Y being O or S;(c) R is unsubstituted, straight or branched chain alkanyl or alkanoxy having from 1 to about 3 non-hydrogen atoms; and(d) R' is selected from hydrogen, methyl, cyano, and halo;pharmaceutical compositions containing such compounds; and the use of such compounds for preventing or treating of disorders modulated by alpha-2 adrenoceptors.

Abstract: The subject invention relates to compounds having the structure: ##STR1## wherein (a) n is an integer from 1 to about 3;(b) X and Y are each independently selected from O, S and CH.sub.2, with at least one of X and Y being O or S;(c) R is unsubstituted, straight or branched chain alkanyl or alkanoxy having from 1 to about 3 non-hydrogen atoms; and(d) R' is selected from hydrogen, methyl, cyano, and halo; pharmaceutical compositions containing such compounds; and the use of such compounds for preventing or treating of disorders modulated by alpha-2 adrenoceptors.

Abstract: The subject invention relates to compounds having the structure: ##STR1## as defined in the claims, and to pharmaceutical compositions containing such compounds, and the use of such compounds for preventing or treating of disorders modulated by alpha-2 adrenoceptors.

Abstract: The subject invention relates to compounds having the structure: ##STR1## wherein: (a) R is unsubstituted C.sub.1 -C.sub.3 alkanyl or alkenyl;(b) R' is selected from unsubstituted C.sub.1 -C.sub.3 alkanyl or alkenyl; unsubstituted C.sub.1 -C.sub.3 alkylthio or alkoxy; hydroxy; thiol; and halo; and(c) R" is selected from hydrogen; unsubstituted C.sub.1 -C.sub.3 alkanyl or alkenyl; methyl monosubstituted with hydroxy, thiol or amino; unsubstituted C.sub.1 -C.sub.3 alkylthio or alkoxy; amino; unsubstituted amide; unsubstituted or C.sub.1 -C.sub.3 substituted amido; halo; unsubstituted sulfoxide; unsubstituted sulfonyl; and cyano;pharmaceutical compositions containing such compounds, and the use of such compounds for preventing or treating respiratory, ocular, and/or gastrointestinal disorders.

Abstract: 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.