摘要:
Haloaryl compounds bearing a defined functional group or precursor are metalated with either Sn(n-Bu).sub.3 or SnMe.sub.3. The resulting aryltin compound may be transmetalated in site-specific reaction with one of the following organometallic groups: HgX.sub.2, Hg(OAc).sub.2, BX.sub.3, or BZ.sub.3, wherein X is Cl, Br, or I, and Z is alkyl or alkoxy. The stannylated or otherwise metalated compounds are subsequently radiohalogenated via a demetalation reaction. The Stannylated or otherwise metalated compounds are subsequently radiohalogenated via a demetalation reaction. The functional group is suitable for conjugation to protein and can be present or be added subsequent, but most preferably prior, to the radiohalogenation.Also compounds of the formula: R.sub.1 --Ar--R.sub.2, wherein R.sub.1 is either a radiohalogen or any one of the organometallic groups stated above, Ar is aromatic or heteroaromatic ring, and R.sub.2 is a short-chain substituent that does not highly activate the aromatic ring an that bears a functional group suitable for conjugation to protein under conditions that preserve the biological activity of the protein. The radiohalogenated small nolecules are conjugated to proteins such as monoclonal antibodies for use in diagnosis and therapy.
摘要:
Protein conjugated chelated metal radionuclides are provided for use in vivo. Intermediates are provided for preparing the polypeptide compositions efficiently.
摘要:
Protein conjugated chelated metal radionuclides are provided for use in vivo. Intermediates are provided for preparing the polypeptide compositions efficiently.
摘要:
There is disclosed a process for minimally derivatizing a targeting protein with a radionuclide such that the predominant species of derivatized targeting protein contains one radionuclide group as a single radiolabeled ligand, and whereby the binding characteristics of the targeting protein are minimally affected. There is further disclosed ligands that can chelate a metal radionuclide or bind a halogen radionuclide while providing a means for separating radiolabeled ligand from unradiolabeled ligand.
摘要:
Haloaryl compounds are lithiated and thereafter metalated with one of the following organometallic groups: Sn(n-Bu).sub.3 or SnMe.sub.3. The resulting aryltin compound can be transmetalated in site-specific reaction with one of the following organometallic groups: HgX, Hg(OAc).sub.2, BX.sub.3, or BZ.sub.2, wherein X is Cl, Br, or I, and Z is alkyl or alkoxy. The metalated compounds are subsequently radiohalogenated via a demetalation reaction. A functional group suitable for conjugation to protein can be added subsequent of preferably prior to the radiohalogenation.Also compounds of the formula: R.sub.1 -Ar-R.sub.2, wherein R.sub.1 is either a radiohalogen or any one of the organometallic groups stated above, Ar is aromatic or heteroaromatic ring, and R.sub.2 is a short-chain substituent that does not activate the aromatic ring and that bears a functional group, or a precursor thereof, suitable for conjugation to protein under conditions that preserve the biological activity of the protein.The radiohalogenated small molecules are conjugated to proteins such as monoclonal antibodies for use in diagnosis and therapy.
摘要:
Haloaryl compounds are lithiated and thereafter metalated with one of the following organometallic groups: Sn(n-Bu).sub.3 or SnMe.sub.3. The resulting aryltin compound can be transmetalated in site-specific reaction with one of the following organometallic groups: HgX, Hg(OAc).sub.2, BX.sub.3, or BZ.sub.2, wherein X is Cl, Br, or I, and Z is alkyl or alkoxy. The metalated compounds are subsequently radiohalogenated via a demetalation reaction. A functional group suitable for conjugation to protein can be added subsequent or preferably prior to the radiohalogenation.Also compounds of the formula: R.sub.1 -Ar-R.sub.2, wherein R.sub.1 is either a radiohalogen or any one of the organometallic groups stated above, Ar is aromatic or heteroaromatic ring, and R.sub.2 is a short-chain substituent that does not activate the aromatic ring and that bears a functional group, or a precursor thereof, suitable for conjugation to protein under conditions that preserve the biological activity of the protein.The radiohalogenated small molecules are conjugated to proteins such as monoclonal antibodies for use in diagnosis and therapy.
摘要:
Protein conjugated chelated metal radionuclides are provided for use in vivo. Intermediates are provided for preparing the polypeptide compositions efficiently.
摘要:
Protein conjugated chelated metal radionuclides are provided for use in vivo. Intermediates are provided for preparing the polypeptide compositions efficiently.
摘要:
Protein conjugated chelated metal radionuclides are provided for use in vivo. Intermediates are provided for preparing the polypeptide compositions efficiently.
摘要:
The present invention provides metal chelating compounds, to chelates and chelate-targeting agent conjugates formed from the chelating compounds, and to methods for making and using these compositions. The chelating compounds incorporate two nitrogen atoms and three sulfur atoms ("N.sub.2 S.sub.3 "), two nitrogen atoms and four sulfur atoms ("N.sub.2 S.sub.4 "), or three nitrogen atoms and three sulfur atoms ("N.sub.3 S.sub.3 "). Metals, and metal oxides, capable of being chelated by the compounds include those that are radionuclides, such as .sup.99m Tc and .sup.186/188 Re.The targeting agent portion of the chelate-targeting agent conjugates provided includes antibodies, peptides, hormones, enzymes and biological response modifiers. Methods for making the conjugates are provided and encompass the addition of a metal, or metal oxide, to a chelating compound prior to attachment to a targeting agent as well as subsequent to the attachment.Another aspect of the invention provides kits for producing chelate-targeting agent comjugates for radiopharmaceutical use.An additional aspect of the invention provides methods for using the chelate-targeting agent conjugates for diagnostic and therapeutic purposes, such as detection of a target site and delivery of a radionuclide to the site, respectively.