Patent classifications
C07F5/00
Modular Imaging Agents Containing Amino Acids and Peptides
Targeted molecular imaging agents (TMIAs) are derived from coupling together pre-formed amino acids with imaging agents attached to their side chains. These peptide-based imaging agents may be synthesized from a single or multiple preformed amino acids containing multi-modal, multi-chelated metal, multi-dye imaging agents, or combinations of these, on the side chains of resultant peptides. These imaging amino acids or peptides may be conjugated directly, or activated, or attached to linkers to which targeting groups, such as peptides, proteins, antibodies, aptamers, or small molecule inhibitors, may be conjugated in the final steps of the synthesis to form a wide variety of TMIAs.
Complex compounds of germanium, methods for producing same, and drugs
The invention relates to the development of drugs intended for the prophylaxis and/or treatment of viral diseases caused, in particular, by herpes viruses. What are proposed are complex compounds of germanium having the general structural formula:
Ge.sub.x[AD][CA].sub.y[AA].sub.2 (1), where AD is a derivative of a nitrogenous base of the purine series that has antiviral activity and can be selected from guanine derivatives, such as acyclovir, valacyclovir, gancyclovir and pencyclovir, or from adenine derivatives, such as vidarabine; CA is a hydroxycarboxylic acid which can be selected from acids such as (but not limited to) citric acid, lactic acid and malic acid; AA is an amino acid which can be selected from various a-amino acids, such as arginine, gylcine, lysine and threonine, and where x=1-2, y=2-4 and z=0-2. Complex compounds of germanium have a high level of antiviral and immune-stimulating activity and are readily soluble in water. The above mentioned compounds are produced by producing an aqueous suspension of germanium dioxide, adding a hydroxycarboxylic acid, a derivative of a nitrogenous base of the purine series and, optionally, but preferably, an amino acid thereto, heating the mixture produced at a temperature of 40-100° C. for 3-14 hours while stirring and removing the water from the solution, thus producing a complex compound of germanium.
Lanthanide precursors and deposition of lanthanide-containing films using the same
Lanthanide-containing film forming compositions comprising Lanthanide precursors having the general formulae: ##STR00001##
wherein Ln is a Lanthanide; A is independently N, Si, B, P or O; each E is independently C, Si, B or P; m and n are independently 0, 1 or 2; m+n>1; each R is independently an H or a C.sub.1-C.sub.4 hydrocarbyl group; L is a −1 anionic ligand selected from the group consisting of NR′.sub.2, OR′, Cp, amidinate, β-diketonate, or keto-iminate, wherein R′ is an H or a C.sub.1-C.sub.4 hydrocarbon group; and L′ is NR″ or O, wherein R″ is an H or a C.sub.1-C.sub.4 hydrocarbon group. Also disclosed are methods of synthesizing and using the disclosed precursors to deposit Lanthanide-containing films on one or more substrates via vapor deposition processes.
Lanthanide precursors and deposition of lanthanide-containing films using the same
Lanthanide-containing film forming compositions comprising Lanthanide precursors having the general formulae: ##STR00001##
wherein Ln is a Lanthanide; A is independently N, Si, B, P or O; each E is independently C, Si, B or P; m and n are independently 0, 1 or 2; m+n>1; each R is independently an H or a C.sub.1-C.sub.4 hydrocarbyl group; L is a −1 anionic ligand selected from the group consisting of NR′.sub.2, OR′, Cp, amidinate, β-diketonate, or keto-iminate, wherein R′ is an H or a C.sub.1-C.sub.4 hydrocarbon group; and L′ is NR″ or O, wherein R″ is an H or a C.sub.1-C.sub.4 hydrocarbon group. Also disclosed are methods of synthesizing and using the disclosed precursors to deposit Lanthanide-containing films on one or more substrates via vapor deposition processes.
Metal oxide materials made using self-assembled coordination polymers
A method for making organo-metal material involves providing a metal ion source in a medium that removes metal ions from the source and forms 1D metal-containing coordination polymers that self-assemble and precipitate as at least one of a 2D and 3D coordination polymer material that can be thermally treated to produce a porous metal oxide material.
METAL COMPLEXES AND FLUORINATION THEREOF
A method of labelling biological molecules with .sup.18F, via attachment of fluorine to a metal complex, where the metal complex is conjugated to the biological molecule. The invention highlights the incorporation of hydrogen bonding (H-bonding) into the metal complex scaffold, and how this can be utilized to improve the kinetics of fluoride incorporation. Also provided are pharmaceutical compositions, kits and methods of in vivo imaging.
Metal complex compounds as catalysts for polyurethane compositions
The invention relates to metal complex compounds of the formula M.sub.k(L).sub.x(Y).sub.kz-nx, where the ligand L has the formula (I), and to metal complex compounds which include the reaction product of at least one salt or a complex of a transition metal or a main group metal element of the groups 13 to 15 and at least one 1,3-ketoamide. Such complex compounds are suitable in particular as catalysts for polyurethane compositions. The invention also relates to two-component polyurethane compositions including at least one polyisocyanate as the first component, at least one polyol as the second component, and at least one such metal complex compound as the catalyst. The invention additionally relates to different uses of the two-component polyurethane compositions.
Complex of gadolinium and a chelating ligand derived of a diastereoisomerically enriched PCTA and synthesis method
The present invention relates to a complex of formula (II) constituted of at least 80% of a diastereoisomeric excess comprising a mixture of isomers II-RRR and II-SSS of formulae: ##STR00001## The present invention also relates to a process for preparing said complex of formula (II), and also to two synthetic intermediates.
Method to prevent cancer metastasis to bone
A method for treating osteoporosis and related methods are disclosed. The methods generally comprise administering to a patient in need of treatment an effective amount of tris(8-quinolinolato)gallium(III) or an analog thereof.
Method to prevent cancer metastasis to bone
A method for treating osteoporosis and related methods are disclosed. The methods generally comprise administering to a patient in need of treatment an effective amount of tris(8-quinolinolato)gallium(III) or an analog thereof.