Methods of treating gastrointestinary and genitourinary pain disorders

A method of treating a functional gastrointestinal or genitourinary disorder in a mammal, comprising administering to the mammal an effective amount of a compound of the formula:

• in which A is a moiety of the formula
• wherein
• the dotted line represents optional unsaturation;
• R1 is hydrogen or alkyl of 1 to 6 carbon atoms;
• R2 is alkyl of 1 to 6 carbon atoms;
• R4 is hydrogen, alkyl of 1 to 6 carbon atoms, formyl, or alkanol of 2 to 7 carbon atoms;
• R5 and R6 are, independently, hydrogen, hydroxyl, alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, alkanoyloxy of 2 to 7 carbon atoms, cyano, nitro, alkylmercapto of 1 to 6 carbon atoms, amino, alkylamino of 1 to 6 carbon atoms, dialkylamino in which each alkyl group is of 1 to 6 carbon atoms, alkanamido of 2 to 7 carbon atoms, halo, trifluoromethyl, or taken together, methylene dioxy;
• R7 is hydrogen or alkyl of 1 to 6 carbon atoms;
• and
• n is 0, 1, 2, 3, or 4;
• or a pharmaceutically acceptable salt thereof.