Patent ID: 7012069

Claim:
A compound of formula (I): in which each of R 1 , R 2 , R 4 , R 4′ , R 5 , R 7 , R 11 , R 12 , R 15 , R 16 , and R 17 , independently, is hydrogen, halo, alkyl, haloalkyl, hydroxy, amino, carboxyl, oxo, sulfonic acid, or alkyl that is optionally inserted with —NH—, —N(alky)-, —O—, —S—, —SO—, —SO 2 —, —O—SO 2 —, —SO—O—, —SO 3 —O—, —CO—, —CO—O—, —O—CO—, —CO—NR′—, or —NR′—CO—; each of R 3 and R 6 is hydroxy; each of R 8 , R 9 , R 10 , R 13 , and R 14 , independently, is hydrogen, halo, alkyl, haloalkyl, hydroxyalkyl, alkoxy, hydroxy, or amino; n is 0, 1, or 2; A is alkylene, alkenylene, or alkynylene; and one of X, Y, and Z is —OR′, and the other two are haloalkyl; wherein R′ is hydrogen.