Patent ID: 8324386

Claim:
A compound of the formula (I), wherein: X is H, Cl, Br, I, F, —CN, or C 1-5 alkyl; R1 is H, C 1-4 alkyl, allyl, alkenyl or —CN; each of R2 and R3 is, independently, H or absent, provided that when R2 and R3 are absent a double bond is present between the carbon atoms to which they are attached; R4 is H or —CH 3 ; Y is —O—, —S—, —S(O)—, or —S(O) 2 —; m is 1; n is 0-10; L is —(CH 2 )p—C(O)—, when Y is —S—, —S(O)—, —S(O) 2 —, or —O—, wherein, Y is —O—, Y-L is —O—(CH 2 )p—C(O)—; p is 1-10; and z is a moiety comprising —H, —OH, (C 1 -C 6 )alkoxy, arylalkoxy, —NH 2 , or —NR9R10, wherein each of R9 and R10 is, independently, H or C 1-5 alkyl; or a pharmaceutically acceptable salt thereof.