Patent ID: 6992077

Claim:
A compound represented by structure 1: wherein R represents independently for each occurrence hydrogen, alkyl, aryl, heteroaryl, aralkyl, or heteroaralkyl; R 1 is absent, or present between 1 and 4 times; R 1 represents independently for each occurrence halogen, alkyl, alkenyl, alkynyl, hydroxyl, alkoxyl, silyloxy, amino, nitro, sulfhydryl, alkylthio, imine, amide, phosphoryl, phosphonate, phosphine, carbonyl, carboxyl, carboxamide, anhydride, silyl, thioalkyl, alkylsulfonyl, arylsulfonyl, selenoalkyl, ketone, aldehyde, ester, heteroalkyl, nitrile, guanidine, amidine, acetal, ketal, amine oxide, aryl, heteroaryl, aralkyl, heteroaralkyl, azide, aziridine, carbamate, epoxide, hydroxamic acid, imide, oxime, sulfonamide, thioamide, thiocarbamate, urea, thiourea, or —(CH 2 ) m —R 80 ; R 2 and R 3 represent independently for each occurrence hydrogen, alkyl, aryl, heteroaryl, aralkyl, heteroaralkyl, OR, N(R) 2 , CO 2 R, C(O)N(R) 2 , OC(O)R, or N(R)C(O)R; or two geminal instances of R 2 and R 3 taken together may represent O or C(R) 2 ; R 6 represents hydrogen, alkyl, aryl, heteroaryl, aralkyl, heteroaralkyl, acyl, C(O)OR, C(O)N(R) 2 , or SO 2 R; R 7 represents hydrogen, alkyl, alkenyl, aryl, heteroaryl, aralkyl, heteroaralkyl, acyl, C(O)OR, C(O)N(R) 2 , or SO 2 R; R 80 represents an aryl, cycloalkyl, cycloalkenyl, heterocyclyl, or polycyclyl group; m is an integer in the range 0 to 8 inclusive; and n is 1, 2, or 3; provided that when n is 3 and a pair of geminal instances of R 2 and R 3 taken together represent O, R 7 is not acetyl; further provided that when n is 2, R 2 and R 3 are not both methyl; or when n is 2, R 6 and R 7 are not both acetyl.