Patent ID: 7071231

Claim:
A compound of the formula: where R 5 and R 6 are independently selected from hydrogen and hydroxy; each R 10 is, independently, substituted aryl or substituted heteroaryl; at least one of the substituents on each R 10 is R 12 ; each R 12 is, independently, —SO 2 OR 13 , —C(O)OR 13 , —SO 2 NR 13 2 , —C(O)NR 13 2 , triazolyl, tetrazolyl, isoxazolyl, a phosphonic acid residue, or a phosphonate residue; and each R 13 is, independently, hydrogen or lower alkyl, or a pharmaceutically acceptable salt thereof, as a single stereoisomer or mixture of stereoisomers.