Patent ID: 8765799

Claim:
A compound of formula (I), wherein R 1 is (C 6 -C 7 )alkyl, R 2 is H, (C 1 -C 6 )alkyl, or (C 1 -C 6 )alkylene-OH, R 3 is H or (C 1 -C 6 )alkyl, X 1 is selected from halogen, O—(C 1 -C 6 )alkyl, NH[(C 1 -C 6 )alkyl], NH[C 1 -C 4 )alkylene-(C 6 -C 10 )-aryl], NH[(C 1 -C 4 )alkylene-(C 6 -C 10 )-heteroaryl], and S—(C 1 -C 4 )alkylene-N[(C 1 -C 4 )alkyl] 2 , X 2 is halogen, and Y 1 and Y 2 are independently selected from H; OH; NH[(C 1 -C 6 )alkyl]; NH[C 1 -C 4 )alkylene-(C 6 -C 10 )-aryl], wherein the (C 6 -C 10 )-aryl group is optionally substituted by halogen; NH[C 1 -C 4 )alkylene-(C 6 -C 10 -heteroaryl]; and a saturated or unsaturated heterocyclic ring system containing 5 to 6 ring atoms optionally substituted by (C 1 -C 6 )alkyl, wherein one or two ring atoms are selected from N, O, and S; or Y 1 and Y 2 together are ═O, or a physiologically tolerated salt of a compound of the formula (I).