Patent ID: 7569693

Claim:
A compound of formula I or formula II: wherein: R 1 and R 2 independently are selected from a) H, b) a C 1-20 alkyl group, c) a C 1-20 haloalkyl group, d) a C 2-20 alkenyl group, e) a C 2-20 alkynyl group, f) a C 3-10 cycloalkyl group, g) a C 6-14 aryl group, h) a 3-14 membered cycloheteroalkyl group, and i) a 5-14 membered heteroaryl group, wherein each of the C 1-20 alkyl group, the C 2-20 alkenyl group, the C 2-20 alkynyl group, the C 3-10 cycloalkyl group, the C 6-14 aryl group, the 3-14 membered cycloheteroalkyl group, and the 5-14 membered heteroaryl group is optionally substituted with 1-5 R a groups; R a, at each occurrence, is independently selected from a) a halogen, b) —CN, c) —NO 2 , d) —N + (R b ) 3, e) —S(O) m R b , f) —S(O) m OR b , g) —C(O)R b , h) —C(O)OR b , i) —(CH 2 CH 2 O) n CH 2 CH 2 OH, and j) a C 1-20 haloalkyl group; R b , at each occurrence, is independently selected from a) H, b) a C 1-20 alkyl group, c) a C 1-20 haloalkyl group, d) a C 6-14 aryl group, e) a —(C 1-20 alkyl)—C 6-14 aryl group, and f) a —(C 1-20 haloalkyl)—C 6-14 aryl group; m is 0, 1 or 2; and n is 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.