Patent ID: 7119120

Claim:
A method of inhibiting phosphate transport in a subject in need of phosphate transport inhibition, said method comprising the step of administering an effective amount of a compound represented by the following structural formula: wherein R 9 is a halogen, R 10 is a halogen, a substituted alkyl group, an alkoxy group, a substituted alkoxy group or —NO 2 ; and Ring C is substituted with one or more substituents independently selected from a halogen, a hydroxy group, an alkoxy group, a lower alkyl group, a cycloalkyl group, a heterocycloalkyl group, an aryl group, a heteroaryl group, an aryloxy group, an aralkyl group, a heteroaralkyl group, —C(O)NR 4 R 5 , —C(O)OR 6 , —P(O)(OR 6 ) 2 , —NR 4 R 5 , —NCR 7 (PO 3 ) 2 , —NO 2 , SO 3 , —S(O) 2 R 6 , —C(O)R 7 , —SR 4 , —CR 7 ═NR 4 , —NR 4 SO 2 R 5 , —N═N—R 4 , —CN, —N 3 or —N═C═S, R 4 , R 5 and R 6 are independently a hydrogen, lower alkyl group, heteroalkyl group, cycloalkyl group, aralkyl group, or heteroaralkyl group; and R 7 is a hydrogen, lower alkyl group, heteroalkyl group, cycloalkyl group, an aryl group, a heteroaryl group, —OR 6 or —NR 4 R 5 .