Patent ID: 6906096

Claim:
A compound having the formula wherein: R 1 is a member selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, and optionally substituted heteroaryl; R 2 is a member selected from the group consisting of hydrogen, halogen, optionally substituted alkylamino, and C(O)—R 5 , wherein R 5 is a member selected from the group consisting of optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, and optionally substituted heteroaryl; R 3 is a member selected from the group consisting of hydrogen, and optionally substituted alkyl; R 4 is a member selected from the group consisting of halogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted heteroaryl, and S(O) n —R 6 , wherein R 6 is a member selected from the group consisting of optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, and optionally substituted heteroaryl, wherein n is 1, 2 or 3; and X is a heteroatom selected from the group consisting of O and NR, wherein R is a member selected from the group consisting of hydrogen and optionally substituted alkyl, or, alternatively, R and R 2 together with the atoms to which they are attached, join to form an optionally substituted 5-, 6- or 7-membered heterocyclic ring.