Patent ID: 7241791

Claim:
A compound of formulae I or II having the structure wherein R 1 is alkyl of 1–6 carbon atoms, alkenyl of 2–7 carbon atoms, cycloalkyl of 3–8 carbon atoms, cycloalkenyl of 4–8 carbon atoms, aryl of 6–20 carbon atoms, or arylalkyl of 7–26 carbon atoms; R 2 , R 3 , and R 5 , are each, independently, hydrogen, alkyl of 1–6 carbon atoms, alkenyl of 2–7 carbon atoms, hydroxy, alkoxy of 1–6 carbon atoms, aryloxy of 6–20 carbon atoms, halogen, trifluoromethyl, —CN, —NO 2 , —CHO, or —CO 2 R 11 ; R 4 is hydrogen; R 6 , R 7 , and R 8 , are each, independently, hydrogen, alkyl of 1–6 carbon atoms, alkenyl of 2–7 carbon atoms, hydroxy, alkoxy of 1–6 carbon atoms, aryloxy of 6–20 carbon atoms, halogen, trifluoromethyl, —CO 2 R 11 , aryl of 6–20 carbon atoms, or arylalkyl of 7–26 carbon atoms; R 9 is alkyl of 1–6 carbon atoms, alkenyl of 2–7 carbon atoms, hydroxy, alkoxy of 1–6 carbon atoms, aryloxy of 6–20 carbon atoms, halogen, trifluoromethyl, —CO 2 R 11 , aryl of 6–20 carbon atoms, or arylalkyl of 7–26 carbon atoms; R 10 is hydrogen, —CO R 11 , —CONH R 11 , —P(═O)(OH)OR 11 , or —CO(CH 2 ) n CH(NHR 12 )CO 2 R 11 ; R 11 is hydrogen, alkyl of 1–6 carbon atoms, aryl of 6–20 carbon atoms, or arylalkyl of 7–26 carbon atoms; R 12 is hydrogen or —CO 2 R 11 ; n=0–3, or a pharmaceutically acceptable salt thereof.