Patent ID: 6919323

Claim:
A compound of formula I enantiomers, diastereomers, pharmaceutically acceptable salts thereof, prodrug esters thereof wherein R is —(CR 3 R 4 ) n -J, where n is 1 and R 3 and R 4 are the same or different and are selected from hydrogen, alkyl or substituted alkyl; J is an aryl group having 6-10 carbon atoms optionally independently substituted with one or more halogen; A is methylene or methylene-oxy; X is —CO 2 R 9 , tetrazole, —C(NH)NHOH, —PO 3 R 9 R 10 , or —CONHOH; and Z is an aryl group having 6-10 carbon atoms optionally independently substituted with one or more alkyl and or halogen; R 9 is H or alkyl; and R 10 is H or alkyl.