Compounds having General Formula (I) or General Formula (II): ##STR00001##
in which R.sup.1 is chosen from C.sub.1 to C.sub.10 aliphatic or heteroaliphatic groups, optionally substituted with one or more aryl groups, substituted aryl groups, heteroaryl groups, substituted heteroaryl groups, or combination thereof, R.sup.2 is chosen from aromatic moieties, substituted aromatic moieties, heteroaromatic moieties, substituted heteroaromatic moieties, and coumarin; R.sup.3 is chosen from H, C.sub.1 to C.sub.10 aliphatic or heteroaliphatic groups, phenyl, or substituted phenyl, wherein the aliphatic or heteroaliphatic groups are optionally substituted with one or more phenyl groups, aryl groups, heteroaryl groups, substituted heteroaryl groups, or combination thereof, and wherein the aliphatic or heteroaliphatic groups are optionally bonded to R.sup.2 to form a ring; X is S or O; and Y is S or NH, may be used in pharmaceutical compositions that modify of biological signaling processes or as reagents for biological assays.

Compounds having General Formula (I) or General Formula (II):

##STR00001##

in which R.sup.1 is chosen from C.sub.1 to C.sub.10 aliphatic or heteroaliphatic groups, optionally substituted with one or more aryl groups, substituted aryl groups, heteroaryl groups, substituted heteroaryl groups, or combination thereof, R.sup.2 is chosen from aromatic moieties, substituted aromatic moieties, heteroaromatic moieties, substituted heteroaromatic moieties, and coumarin; R.sup.3 is chosen from H, C.sub.1 to C.sub.10 aliphatic or heteroaliphatic groups, phenyl, or substituted phenyl, wherein the aliphatic or heteroaliphatic groups are optionally substituted with one or more phenyl groups, aryl groups, heteroaryl groups, substituted heteroaryl groups, or combination thereof, and wherein the aliphatic or heteroaliphatic groups are optionally bonded to R.sup.2 to form a ring; X is S or O; and Y is S or NH, may be used in pharmaceutical compositions that modify of biological signaling processes or as reagents for biological assays.

Compounds having General Formula (I) or General Formula (II):

##STR00001##

in which R.sup.1 is chosen from C.sub.1 to C.sub.10 aliphatic or heteroaliphatic groups, optionally substituted with one or more aryl groups, substituted aryl groups, heteroaryl groups, substituted heteroaryl groups, or combination thereof, R.sup.2 is chosen from aromatic moieties, substituted aromatic moieties, heteroaromatic moieties, substituted heteroaromatic moieties, and coumarin; R.sup.3 is chosen from H, C.sub.1 to C.sub.10 aliphatic or heteroaliphatic groups, phenyl, or substituted phenyl, wherein the aliphatic or heteroaliphatic groups are optionally substituted with one or more phenyl groups, aryl groups, heteroaryl groups, substituted heteroaryl groups, or combination thereof, and wherein the aliphatic or heteroaliphatic groups are optionally bonded to R.sup.2 to form a ring; X is S or O; and Y is S or NH, may be used in pharmaceutical compositions that modify of biological signaling processes or as reagents for biological assays.

Nanoparticles having a plurality of PVP chains covalently bonded to a surface of the nanoparticle are provided, along with their methods of formation and the RAFT agents for the polymerization of the PVP chains. RAFT agents are generally provided, along with their methods of formation and use. Methods are also generally provided for grafting a PVP polymer onto a nanoparticle. In one embodiment, the method includes polymerizing a plurality of monomers in the presence of a RAFT agent to form a polymeric chain covalently bonded to the nanoparticle.

Nanoparticles having a plurality of PVP chains covalently bonded to a surface of the nanoparticle are provided, along with their methods of formation and the RAFT agents for the polymerization of the PVP chains. RAFT agents are generally provided, along with their methods of formation and use. Methods are also generally provided for grafting a PVP polymer onto a nanoparticle. In one embodiment, the method includes polymerizing a plurality of monomers in the presence of a RAFT agent to form a polymeric chain covalently bonded to the nanoparticle.

A thiazole derivative compound includes a compound having the following structural formula: ##STR00001##
or a pharmaceutically acceptable salt thereof.

A thiazole derivative compound includes a compound having the following structural formula: ##STR00001##
or a pharmaceutically acceptable salt thereof.

Nanoparticles having a plurality of PVP chains covalently bonded to a surface of the nanoparticle are provided, along with their methods of formation and the RAFT agents for the polymerization of the PVP chains. RAFT agents are generally provided, along with their methods of formation and use. Methods are also generally provided for grafting a PVP polymer onto a nanoparticle. In one embodiment, the method includes: polymerizing a plurality of monomers in the presence of a RAFT agent to form a polymeric chain covalently bonded to the nanoparticle.

Nanoparticles having a plurality of PVP chains covalently bonded to a surface of the nanoparticle are provided, along with their methods of formation and the RAFT agents for the polymerization of the PVP chains. RAFT agents are generally provided, along with their methods of formation and use. Methods are also generally provided for grafting a PVP polymer onto a nanoparticle. In one embodiment, the method includes: polymerizing a plurality of monomers in the presence of a RAFT agent to form a polymeric chain covalently bonded to the nanoparticle.

Compounds having General Formula (I) or General Formula (II): ##STR00001##
in which R.sup.1 is chosen from C.sub.1 to C.sub.10 aliphatic or heteroaliphatic groups, optionally substituted with one or more aryl groups, substituted aryl groups, heteroaryl groups, substituted heteroaryl groups, or combination thereof; R.sup.2 is chosen from aromatic moieties, substituted aromatic moieties, heteroaromatic moieties, substituted heteroaromatic moieties, and coumarin; R.sup.3 is chosen from H, C.sub.1 to C.sub.10 aliphatic or heteroaliphatic groups, phenyl, or substituted phenyl, wherein the aliphatic or heteroaliphatic groups are optionally substituted with one or more phenyl groups, aryl groups, heteroaryl groups, substituted heteroaryl groups, or combination thereof, and wherein the aliphatic or heteroaliphatic groups are optionally bonded to R.sup.2 to form a ring; X is S or O; and Y is S or NH, may be used in pharmaceutical compositions that modify of biological signaling processes or as reagents for biological assays.