Patent ID: 6903133

Claim:
A compound of formula (I): wherein each of R 1 , R 2 , R 3 and R 7 independently is H or alkyl; each of R 4 and R 6 independently is alkyl; R 5 is H or P(O)(OR a ) 2 , in which R a is H or alkyl; T is H, or together with X is ═N; X is a bond, O, S, or NR b , in which R b is H or alkyl; or together with T, is ═N; and Y is 5-membered heteroaryl or heterocyclyl, optionally substituted with one or more of halogen, alkyl, cyclyl, aryl, heteroaryl, heterocyclyl, —OR c , —NR c R c ′, —SR c , —CN, —NO 2 , —SO 2 R c , —C(O)OR c , —C(O)NR c R c ′, —NHC(O)R c , —(CH 2 ) q OPO 3 H 2 , —CH 2 C(O)NOR c ″, and in which each of R c and R c ′ independently is H or alkyl; Rc″ is H, alkyl, or silyl; Z is O or NH; each of m and n independently is 0 or 1; p is 0, 1, or 2; q is 1, 2, 3, or 4; and each of R 8 and R 9 independently is H, alkyl, aryl, heteroaryl, heterocyclyl, —OR d , —NR d R d ′, —SR d , —CN, —NO 2 , —SO 2 R d , —C(O)OR d , —C(O)NR d R d ′, —NHC(O)R d , or —NHC(O)OR d , in which each of R d and R d ′ independently is H or alkyl.