Patent ID: 7276499

Claim:
A compound represented by formula (I): wherein: R 1 and R 1 ′ are the same or different and are —F, —NO 2 , —CN, Cl —CHF 2 , —CF 3 , —NR 7 R 8 , or —OR 9 , wherein R 7 and R 8 are the same or different and are linear alkyl having 1 to 10 carbon atoms, branched or cyclic alkyl having 3 to 10 carbon atoms, or simple or substituted phenyl or naphthyl, and R 9 is linear alkyl having 1 to 10 carbon atoms, or branched or cyclic alkyl having 3 to 10 carbon atoms; R 1 ″ is H; R 2 is —(CH 2 ) n SZ, —CO(CH 2 ) n SZ, —(CH 2 ) n CH(CH 3 )SZ, —CO(CH 2 ) n CH(CH 3 )SZ, —(CH 2 ) n C(CH 3 ) 2 SZ, —CO(CH 2 ) n C(CH 3 ) 2 SZ, —CONR 12 (CH 2 ) n CH(CH 3 )SZ, —CONR 12 (CH 2 ) n C(CH 3 ) 2 SZ, —CO-morpholino-XSZ, —CO-piperazino-XSZ, —CO-piperidino-XSZ, or —CO-N-methylpiperazino-XSZ, wherein Z is H or SR, wherein R and R 12 are the same or different and are linear alkyl having 1 to 10 carbon atoms, branched or cyclic alkyl having 3 to 10 carbon atoms, or simple or substituted phenyl, naphthyl or heterocyclic, and R 12 in addition can be H, X is linear alkyl having 1-10 carbon atoms or branched alkyl having 3-10 carbon atoms, and n is an integer of 1 to 10; R 3 is —CH═C(CH 3 ) 2 ; R 4 is —OC(CH 3 ) 3 or phenyl; R 5 together with the oxygen atom at the C-7 position forms a linear ether having from 1 to 10 carbon atoms, or a branched or cyclic ether having from 3 to 10 carbon atoms; and R 6 is H.