专利号:US-6262253-B1 优先权日:1993-05-24 标 题 :Vitamin B12 conjugates with gcsf, analogues thereof and pharmaceutical compositions 发明人:RUSSELL-JONES GREGORY JOHN; WESTWOOD STEVEN WILLIAM 权利人:BIOTECH AUSTRALIA PTY LTD 摘要:The invention describes complexes between VB12 analogues and either GCSF or EPO that retain both significant affinity for intrinsic factor (IF) in the VB12 portion of the complex and significant bioactivity of the GCSF or EPO portion of the complex. The invention also concerns a process for the synthesis of these complexes. This is achieved at least in part, by using a spacer compound, which is linked covalantly between the VB12 portion and the GCSF or EPO. The complexes preferably have the formulawherein V is vitamin B12 or a vitamin B12 analogue, or derivative, bonded to X either through a carboxylate group pendant to the corrin nucleus of VB12 or through the central cobalt atom or to a functional group introduced onto the VB12 molecule, X is selected from: -NHNH-, -NH-, -O-, -S-, -SS- or -CH2-, and A is an optionally substituted, saturated or unsaturated, branched or linear, C1-50 alkylene, cycloalkylene or aromatic group, optionally with one or more carbons within the linear chain being replaced with N, O or S, and wherein the optional substituents are selected from carbonyl, carboxy, hydroxy, amino and other groups, and Y is the covalent linkage between A and Z where Y is selected from -NHCO-, -CONH-, -CONHNHCO-, -N=N-, -N=CH-, -NHCH2-, -NHN=CH-, -NHNHCH2-, -SS-, -SCH2-, -CH2S-, -NHCRNH-, -COO-, -OCO-, and R is O, S or NH2, and Z is GCSF or EPO. The invention also describes reagents that can be used as probes for the detection of buried thiol groups of a protein or peptide, said reagent comprising a complex of either vitamin B12 (or an analogue thereof) or more generally of any instrumentally or visually detectable label, covalently linked to a diradical spacer, said spacer having a terminal reactive group capable of forming a disulphide bond with a free thiol in said protein or peptides.
专利号:CA-573727-A 优先权日: 标 题:Process for the synthesis of 5-hydroxybenzimidazole
专利号:US-11124609-B2 优先权日:2016-08-05 标 题:Polymeric coatings for metal surfaces 发明人:LAWTON JOHN A 权利人:SEABOURNE SOLUTIONS LLC 摘要:Polymer compositions for coating of metal surfaces including moieties that interact with a metal atom in the metal surface and optionally containing antifoulant moieties. These polymer compositions provide lubricious coatings for medical devices, anticorrosion coatings for metal components, and antifoulant coatings for marine components such as propellers. The polymer composition is synthesized in a safe manner in which the synthesis components are added to a synthesis vat and there is no need for filtration or removal of waste materials in any step including the consumer use. As such this invention provides an environmentally sound approach to composition synthesis, formulation development, and consumer use.
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