Abstract: Compounds of formula I ##STR1## wherein X.sup.a, X.sup.b, R, R.sup.1 and R.sup.2 have any of the meanings given in the specification, and their pharmaceutically acceptable salts are useful as potassium channel openers for the treatment of urinary incontinence. Also disclosed are pharmaceutical compositions, processes for preparing the compounds of formula I and intermediates.

Abstract: Compounds of formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and A-B have any of the meanings given in the specification, and their pharmaceutically acceptable salts are useful in the treatment of urinery incontinence. Also disclosed are pharmaceutical compositions, processes for preparing the compounds of formula I and intermediates.

Abstract: Amides having formula I: ##STR1## wherein E, X, R.sup.2 and R.sup.3 have the meanings given in the specification, and pharmaceutically acceptable salts and pharmaceutically acceptable in vivo hydrolysable esters thereof,which are useful in the treatment of urinary incontinence. Further provided are processes for preparing the aides and pharmaceutical compositions containing them.

Abstract: Amides having formula I: ##STR1## wherein E, X, R.sup.2 and R.sup.3 have the meanings given in the specification, and pharmaceutically acceptable salts and pharmaceutically acceptable in vivo hydrolysable esters thereof, which are useful in the treatment of urinary incontinence. Further provided are processes for preparing the aides and pharmaceutical compositions containing them.

Abstract: Amides having formula I: ##STR1## wherein E, X, R.sup.2 and R.sup.3 have the meanings given in the specification, and pharmaceutically acceptable salts and pharmaceutically acceptable in vivo hydrolysable esters thereof, which are useful in the treatment of urinary incontinence. Further provided are processes for preparing the amides and pharmaceutical compositions containing them.

Abstract: Amides having formula I: ##STR1## wherein E, X, R.sup.2 and R.sup.3 have the meanings given in the specification, and pharmaceutically acceptable salts and pharmaceutically acceptable in vivo hydrolysable esters thereof, which are useful in the treatment of urinary incontinence. Further provided are processes for preparing the amides and pharmaceutical compositions containing them.

Abstract: Compounds of formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and A-B have any of the meanings given in the specification, and their pharmaceutically acceptable salts are useful in the treatment of urinery incontinence. Also disclosed are pharmaceutical compositions, processes for preparing the compounds of formula I and intermediates.

Abstract: Compounds of formula I ##STR1## wherein R.sup.1 -R.sup.4, X, Y, and Z have any of the meanings given in the specification, and their pharmaceutically acceptable salts are useful as potassium channel openers for the treatment of urinary incontinence. Also disclosed are pharmaceutical compositions, processes for preparing the compounds of formula I and intermediates.

Abstract: Compounds of formula I ##STR1## wherein X.sup.a, X.sup.b, R, R.sup.1 and R.sup.2 have any of the meanings given in the specification, and their pharmaceutically acceptable salts are useful as potassium channel openers for the treatment of urinary incontinence. Also disclosed are pharmaceutical compositions, processes for preparing the compounds of formula I and intermediates.

Abstract: Compounds of formula I: ##STR1## wherein, ring C, A-B, R.sup.1, n, R.sup.2, and R.sup.3 have any of the meanings given in the specification, and their pharmaceutically acceptable salts are useful in the treatment of urinary incontinence. Also disclosed are pharmaceutical compositions, processes for preparing the compounds of formula I and intermediates.

Abstract: Amides having formula I: ##STR1## wherein E, X, R.sup.2 and R.sup.3 have the meanings given in the specification, and pharmaceutically acceptable salts and pharmaceutically acceptable in vivo hydrolysable esters thereof, which are useful in the treatment of urinary incontinence. Further provided are processes for preparing the amides and pharmaceutical compositions containing them.

Abstract: Compounds of formula I ##STR1## wherein X, A, B, R.sup.1 and R.sup.2 have the meanings given in the specification, and pharmaceutically acceptable salts and pharmaceutically acceptable in vivo hydrolysable ester thereof, processes for preparing the compounds and pharmaceutical compositions comprising them. The compounds are useful as potassium channel openers and as therapeutic agents in the treatment of urinary incontinence.

Abstract: The invention concerns novel 1,3-dioxane alkenoic acid derivatives of the formula I ##STR1## wherein: n is the integer 1 or 2; Y is methyleneoxy, vinylene or ethylene;A.sup.1 is (1-6C)alkylene;R.sup.1 is a group of the formula R.sup.2.A.sup.2 -, in which:R.sup.2 is phenyl unsubstituted or bearing up to three substituents which are independently selected from (1-6C)alkyl, (1-6C)alkoxy, (2-6C)alkanoyl, (1-6C)alkylthio, (1-6C)alkylsulphonyl, halogeno, trifluoromethyl, nitro and cyano;A.sup.2 is a direct bond to R.sup.2 or a group of the formula --W--C(R.sup.4)(R.sup.5)-- wherein W is oxygen, methylene or a direct bond to R.sup.2, and R.sup.4 and R.sup.5 are independently (1-4C)alkyl;Q is a heterocyclyl group selected from thiazol-5-yl and imidazol-5-yl, the latter being unsubstituted or bearing a (1-12C)alkyl group at the 1-position of the imidazole ring; andR.sup.3 is hydroxy, a physiologically acceptable alcohol residue, or (1-4C)alkanesulphonamido;or a pharmaceutically acceptable salt thereof.

Abstract: Amides having formula I: ##STR1## wherein E, X, R.sup.2 and R.sup.3 have the meanings given in the specification, and pharmaceutically acceptable salts and pharmaceutically acceptable in vivo hydrolysable esters thereof, which are useful in the treatment of urinary incontinence. Further provided are processes for preparing the amides and pharmaceutical compositions containing them.

Abstract: The invention concerns novel 1,3-dioxane alkenoic acid derivatives of the formula I ##STR1## wherein: n is the integer 1 or 2;Y is methyleneoxy, vinylene or ethylene;A.sup.1 is (1-6C)alkylene;R.sup.1 is a group of the formula R.sup.2.A.sup.2 --, in which:R.sup.2 is phenyl unsubstituted or bearing up to three substituents which are independently selected from (1-6C)alkyl, (1-6C)alkoxy, (2-6C)alkanoyl, (1-6C)alkylthio, (1-6C)alkylsulphonyl, halogeno, trifluoromethyl, nitro and cyano;A.sup.2 is a direct bond to R.sup.2 or a group of the formula --W--C(R.sup.4)(R.sup.5)-- wherein W is oxygen, methylene or a direct bond to R.sup.2, and R.sup.4 and R.sup.5 are independently (1-4C)alkyl;Q is a heterocyclyl group selected from thiazol-5-yl and imidazol-5-yl, the latter being unsubstituted or bearing a (1-12C)alkyl group at the 1-position of the imidazole ring; andR.sup.3 is hydroxy, a physiologically acceptable alcohol residue, or (1-4C)alkanesulphonamido;or a pharmaceutically acceptable salt thereof.