Cyanophenoxy carboxylic acid compounds and compositions for delivering active agents

1. A method of regulating reproductive function in a patient in need thereof comprising administering an effective amount of a composition comprising:

(A) an active agent; and

(B) at least one compound having the formula:

or a salt thereof, wherein

R 1 , R 2 , R 3 , R 4 and R 5 are independently H, —CN, —OH, —OCH 3 , or halogen, at least one of R 1 , R 2 , R 3 , R 4 and R 5 being —CN; and

R 6 is C 1 -C 12 linear or branched alkylene, alkenylene, arylene, alkyl(arylene) or aryl(alkylene),

with the proviso that when R 1 is —CN, R 4 is H or —CN, and R 2 , R 3 , and R 2 are H, then R 6 is not (CH 2 ) 1 .

2. The method of claim 1 , wherein the active agent is luteinzing hormone releasing hormone.

3. A method of regulating reproductive function in a patient in need thereof comprising administering an effective amount of a composition comprising:

(A) an active agent; and

(B) a compound selected from the group consisting of:

and salts thereof.

4. The method of claim 3 wherein the active agent is luteinizing hormone releasing hormone.

5. The method of claim 1 wherein the active agent is follicle stimulating hormone.

6. The method of claim 3 wherein the active agent is follicle stimulating hormone.

7. The method of claim 3 , wherein the delivery agent is selected from compounds 1, 3, 4 and 9 and salts thereof.

8. The method of claim 4 , wherein the delivery agent is selected from compounds 1, 3, 4and 9and salts thereof.

9. The method of claim 6 , wherein the delivery agent is selected from compounds 1, 3, 4and 9and salts thereof.