Patent ID: 8765950

Claim:
A compound of formula (II): where R 0 is either X or of the formula (IIa): where Q, S, T, U, V, W, X, Y, and Z are each independently hydrogen, deuterium, halogen, substituted or unsubstituted C 1-20 alkyl, substituted or unsubstituted C 2-8 alkenyl, substituted or unsubstituted C 2-8 alkynyl, where at least one of Q, S, T, U, V, W, X, Y, and Z is deuterium, where R 1 is substituted or unsubstituted C 2-8 alkynyl, —R′N 3 , —R′COOH, —R′C(O)OR″, —R′C(O)NH 2 , —R′NCS, —R′NCO, —R′NH 2 , —R′SH, —R′NC(O)CH 2 I, or —R′C(O)O-succinimide, where R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 are each independently hydrogen, halogen, substituted or unsubstituted C 1-20 alkyl, substituted or unsubstituted C 2-8 alkenyl, substituted or unsubstituted C 2-8 alkynyl, substituted or unsubstituted C 6-10 aryl, substituted or unsubstituted 5- to 10-membered heteroaryl, or substituted or unsubstituted 3- to 10-membered heterocyclyl, where R 2 and R 3 , R 4 and R 5 , R 6 and R 7 , or R 8 and R 9 may, together with the atoms to which they are attached, form a substituted or unsubstituted 3- to 10- membered ring, and where R′ and R″ are each independently selected from the group consisting of substituted or unsubstituted C 1-8 alkyl, substituted or unsubstituted C 2-8 alkenyl, substituted or unsubstituted C 2-8 alkynyl, substituted or unsubstituted C 6-10 aryl, substituted or unsubstituted 5- to 10-membered heteroaryl, and substituted or unsubstituted 3- to 10-membered heterocyclyl.