Patent ID: 7288545

Claim:
A compound having the formula: wherein A is C(R a′ R b′ ) and is a double bond; Z is R 3 O-(Ar)-C(R e ) and is a double bond; in which Ar is pyridyl linked to C at position 2; and R 3 is C 1 -C 6 alkyl substituted with aryl, C(O)R f , or S(O)R f ; each of R 1 and R 2 , independently, is H or C(O)R g ; R a′ is benzo[1,3]dioxol-5-yl; and R b′ is H, C 1 -C 6 alkyl, or aryl; each of R e and R f , independently, is H, C 1 -C 6 alkyl, aryl, or arylamino; and R g is H, C 1 -C 6 alkyl, or aryl.