Patent ID: 8497272

Claim:
A compound represented by formula (XXIII): or a tautomer or pharmaceutically acceptable salt thereof, wherein: each Z is independently O or S; R 3 and R 4 are independently —H, an optionally substituted alkyl, an optionally substituted alkenyl, an optionally substituted alkynyl, an optionally substituted cycloalkyl, an optionally substituted cycloalkenyl, an optionally substituted heterocyclyl, an optionally substituted aryl or an optionally substituted heteroaryl; R 5 and R 6 are independently —H, an optionally substituted alkyl, an optionally substituted alkenyl, an optionally substituted alkynyl, an optionally substituted cycloalkyl, an optionally substituted cycloalkenyl, an optionally substituted heterocyclyl, an optionally substituted aryl or an optionally substituted heteroaryl; R 13 is a covalent bond, or a substituted or unsubstituted C1-C6 alkylene group; R 17 and R 18 , for each occurrence, are, independently, —H, an optionally substituted alkyl, an optionally substituted alkenyl, an optionally substituted alkynyl, an optionally substituted cycloalkyl, an optionally substituted cycloalkenyl, an optionally substituted heterocyclyl, an optionally substituted aryl, an optionally substituted heteroaryl, an optionally substituted aralkyl, or an optionally substituted heteroaralkyl; R 19 and R 20 , for each occurrence, are independently —H, an optionally substituted alkyl, an optionally substituted alkenyl, an optionally substituted alkynyl, an optionally substituted cycloalkyl, an optionally substituted cycloalkenyl, an optionally substituted heterocyclyl, an optionally substituted aryl, an optionally substituted heteroaryl, an optionally substituted aralkyl, or an optionally substituted heteroaralkyl; or R 19 and R 20 , taken together with the nitrogen to which they are attached, form an optionally substituted heterocyclyl or an optionally substituted heteroaryl; R 29 and R 30 are each independently halo, nitro, cyano, guanidino, —OR 17 , —NR 19 R 20 , —C(O) R 17 , —C(O)OR 17 , —OC(O)R 17 , —C(O)NR 19 R 20 , —NR 18 C(O)R 17 , —OP(O)(OR 17 ) 2 , —SP(O)(OR 17 ) 2 , —SR 17 , —S(O) p R 17 , —OS(O) p R 17 , —S(O) p OR 17 , —NR 18 S(O) p R 17 , or —S(O) p NR 19 R 20 ; provided that if R 3 , R 4 , R 5 , and R 6 are all —H, then neither R 29 or R 30 is —NR 19 R 20 , —NR 18 C(O)R 17 , or —SR 17 , and provided that if R 13 is a covalent bond, if R 3 and R 4 are methyl, and if R 5 and R 6 are —H, then at least one of R 29 and R 30 is other than —SR 17 ; and p is 1 or 2.