URACIL OR THYMINE DERIVATIVE FOR TREATING HEPATITIS C

摘要

Present application relates to the compounds of formula I useful to treat hepatitis C (HCV) infections. In the structure of the disclosed compounds is the uracil or thymine derivative linked via a phenylene into either fused 2- ring cyclic system (R6) or alternatively via additional two-atom linker (L) to a 5-6 membered monocycle (R6). Application further discloses polymorphs I and pseudopolymorphs of two specific compounds: N-(6(3-t-butyl-5-(2>4- dioxo-3,4-dihydropyrimidin-1 (2H)- y!)2-methoxy-pheny1)naphthalen-2- yl)methanesulfonamide and (E)-N-(4(3-t- butyl-5-(2,4-dioxo-3)4-dihydropyrimidin-1 (2H)-yl)2-method-styryl-phemyl)methanesulfonamide.