| abstract |
The invention provides a compound of Formula (I) wherein: R 1 and R 2 are independently selected from hydrogen, halogen, —CN, a hydrocarbyl group or a group of Formula (II); wherein W is aryl or a heterocyclic group, R 4 is independently select from hydrogen, halogen, —OH, amino, alkanoylamino, —OPO 3 H 2 , or a hydrocarbyl group, wherein the amino group is optionally substituted by an amino acid residue and the hydroxy group is optionally esterified or two R 4 groups together form an optionally substituted cyclic or heterocyclic group; X is selected from $M(y) S+—, +—O—+, —+S(O)+—, —+S(O 2 )+— and —+NH—; p is an integer from 0 to 4; and q is an integer from 1 to 4; R 3 and R 10 are independently selected from hydrogen, lower alkyl or a group of Formula (IV): wherein Y is selected from +NH+—, —$M(Y)O$M(Y)— or a bond; Z is selected from +NH+—, —+Oν—, —+C(O)+— or a bond; r is an integer from 0 to 4; t is an integer from 0 to 1; R 6 is hydrogen, a hydrocarbyl group or a group of Formula (V): wherein n is an integer of from 1 to 6, and; R 7 and R 8 are independently selected from hydrogen or a hydrocarbyl group; and R 11 is hydrogen or lower alkyl; or a salt or solvate thereof; provided that: I) when R 1 is an unsubstituted phenylthio group (Ph—S—), R 2 is H, R 10 is H and R 11 is H then R 3 is neither H nor —C(O)—O—CH 2 CH 3 ; and ii) R 1 , R 2 and R 3 are not all hydrogen. Such compounds are predicted to cause the selective destruction of tumour vasculature. They may therefore be used to inhibit and/or reverse, and/or alleviate symptoms of angiogenesis and/or any disease state associated with angiogenesis. |