Patent ID: 8722685

Claim:
A compound of Formula I, wherein: each of X 1 and X 2 is independently —CN, —CO 2 R 1 , —CONR 2 R 3 , or —CONH(PS); each of Y 1 and Y 2 is independently —NR 4 R 5 or Z 1 is a single bond, —CR 18 R 19 —, —O—, —NR 20 —, —NCOR 21 —, —S—, —SO—, or —SO 2 —; each of R 1 to R 5 and R 18 to R 21 is independently —H, —CH 2 (CHOH) a R 44 , —CH 2 (CHOH) a CO 2 H, —(CHCO 2 H) a CO 2 H, —(CH 2 CH 2 O) c R 49 , —(CH 2 ) a SO 3 H, —(CH 2 ) a SO 3 − , —(CH 2 ) a NHSO 3 H, —(CH 2 ) a NHSO 3 − , each of R 44 and R 49 is independently —H or —CH 3 ; (PS) is a sulfated or non-sulfated polysaccharide chain comprising one or more monosaccharide units connected by glycosidic linkages; and ‘a’ is an integer from 1 to 10, ‘c’ is an integer from 1 to 100, and each of ‘m’ and ‘n’ independently is an integer from 1 to 3; with the proviso that if: each of X 1 and X 2 is independently —CN, —CO 2 R 1 or —CONR 2 R 3 ; each of Y 1 and Y 2 is independently —NR 4 R 5 or and Z 1 is a direct bond, then: each of R 1 , R 2 , R 3 , R 4 and R 5 is not simultaneously —H; and m, n, N and Z 1 together do not form a 5- or 6-membered ring.