Patent ID: 7148253

Claim:
A compound of the formula XI: wherein R 1 and R 10 are independently selected from an unsubstituted or substituted aromatic group, wherein the substituted aromatic group may be substituted with one or more of halogen, hydroxy, lower alkyl, lower alkenyl, lower alkynyl, lower alkoxy, thio-lower alkyl, C 1 –C 8 acyl, lower alkyl ester, amide, and lower alkyl amide; a substituted aralkyl group, wherein the substituted aralkyl group may be substituted with one or more of halogen, hydroxy, lower alkyl, lower alkenyl, lower alkynyl, lower alkoxy, thio-lower alkyl, C 1 –C 8 acyl, lower alkyl ester, amide, and lower alkyl amide; an unsubstituted or substituted alkyl group, wherein the substituted alkyl group may be substituted with one or more halogen, hydroxy, and lower alkoxy; and an unsubstituted or substituted cycloalkyl group, wherein the substituted cycloalkyl group may be substituted with one or more halogen, hydroxy, and lower alkoxy; R 3 is selected from halogen, hydroxy, amino, lower alkyl, lower alkoxy, lower alkenyl, and lower alkynyl, wherein the lower alkyl, lower alkoxy, lower alkenyl and lower alkynyl may be unsubstituted or may be substituted with one or more of halogen, hydroxy, and lower alkoxy; or R 3 is a group of the formula Z-(CH 2 ) a —Y b —(CH 2 ) c -Q d -(CH 2 ) e — wherein Y and Q are independently selected from an aromatic group, O, S, —CR═CR—, each R is independently selected from H or lower alkyl, Z is selected from H, —CO 2 R, —OR, —SR, —NR 2 , a, C and e are independently selected from values from 0 to 10; b and d are independently selected from 0 and 1, provided that when a=0 then b=0, and when c=0 then d=0; or R 3 may occupy two adjacent positions to form a fused aromatic ring; and n is selected from values between 0 and 4.