Patent ID: 7351737

Claim:
A compound of the formula wherein Z is C≡C; R 1 is alkyl having 1 to 6 carbons; R 2 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, CF 3 , fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons or alkylthio of 1 to 6 carbons; R 3 is independently alkyl of 1 to 6 carbons, F, Cl, Br, I, CF 3 , fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons or alkylthio of 1 to 6 carbons; m is an integer having the values of 0 to 6; n is an integer having the values of 0 to 2; o is an integer having the values 0 to 4; p is an integer having the values 0, 1, or 2; Y is CH≡C—, CH≡C—CH 2 —; CH 2 ═CH—or —C≡N; R is is H, alkyl of 1 to 6 carbons, —CH 2 OR 4 , —CH 2 —O—COR 4 , or a cation of a pharmaceutically acceptable base, and R 4 is alkyl having 1 to 6 carbons.