Patent ID: 7163943

Claim:
A compound of the formula Id: or a stereoisomer thereof or a salt thereof, wherein G is selected from NH or O; Z is selected from H or wherein X 1 is selected from F or Cl, and X 2 is selected from OCH 3 , NH 2 , OC(O)CH 3 , or OH; A is selected from NR 1 or O; Y 1 is selected from R 1 , B is selected from NR 1 or O; and Y 2 is selected from wherein q is 0 or 1, E is selected from O or NR 2 wherein R 2 is selected from R 1 , OR 1 , C(O)R 1 , C(O)OR 1 , C(O)NH 2 , or CH 2 NH 2 ; or wherein R 3 selected from R 1 , C(O)R 1 , C(O)OR 1 , or C(O)NH 2 ; and wherein R 1 is in each occurrence independently selected from H, or a linear or branched alkyl with up to 10 carbon atoms.