Patent ID: 7618966

Claim:
A compound of formula III wherein a dotted line represents the presence or absence of a double bond; R is selected from the group consisting of H, halogen and C 1-5 alkyl; R 1 is selected from the group consisting of H and halogen; R 2 is independently selected from the group consisting of H, C 1-5 alkyl, halogen, XC 1-5 alkyl, C 1-5 alkylOR 13 , C 1-5 alkylN(R 13 ) 2 , N(R 13 ) 2 , XC 1-5 alkylN(R 13 ) 2 and XC 1-5 alkylO—R 13 ; X is O or S(O) n ; n is 0 or an integer of from 1 to 2; R 3 is selected from the group consisting of H, hydroxyl, C 1-5 alkyl, C 1-5 alkylOR 13 , and C 1-5 alkylN(R 13 ) 2 ; R 4 is selected from the group consisting of H, C 2-5 alkenyl, C 1-5 alkyl, C 1-5 alkylOR 13 and C 1-5 alkylN(R 13 ) 2 ; R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , and R 12 are independently selected from the group consisting of H, C 1-5 alkyl, C 1-5 alkyl OR 13 and OR 13 , or R 5 may represent O; and R 13 is selected from the group consisting of H, C 1-5 alkyl and C 3-8 cyclic alkyl.