Patent ID: 6884820

Claim:
A compound of the formula where m is an integer having the values of 0 to 4; n is an integer having the values of 0 or 1; R 1 is independently H, or alkyl of 1 to 6 carbons; R 2 is independently H, alkyl of 1 to 6 carbons, F, Cl, Br or I; R 3 is alkyl of 1 to 4 carbons, or OCH 2 OR 8 ; R 4 is fluoroalkyl having one to 4 carbons; R 5 is H, F or Cl; R 6 H or alkyl of 1 to 3 carbons, and R 7 is H, alkyl of 1 to 6 carbons, CH 2 OR 8 or CH 2 OCOR 8 where R 8 is alkyl of 1 to 3 carbons, or a pharmaceutically acceptable salt of said compound.