摘要:
The invention relates to cobalamin derivatives (a) having no binding affinity or low binding affinity to the transport protein transcobalamin II TCII) and (b) retaining activity as a vitamin B12 substitute, optionally carrying a therapeutic and/or diagnostic agent, such as a radioactive metal. These compounds have a much reduced accumulation rate in blood and benign organs, such as kidney and liver, compared to the accumulation rate in neoplastic tissues, and are more rapidly eliminated from blood. The invention further relates to a method of diagnosis and a method of treatment of a neoplastic disease or an infection by microorganisms in a mammal comprising (a) exposing the mammal to a period of a vitamin B12-free diet, and (b) subsequently applying a cobalamin derivative of the invention carrying a diagnostic and/or therapeutic agent. By selecting cobalamin derivatives acting as vitamin B12 substitutes, the risk of the formation of resistant offspring in neoplastic tissue is much reduced.
摘要:
The invention relates to cobalamin derivatives having no or low binding affinity to the transport protein transcobalamin II (TCII) and retaining activity as a vitamin B12 substitute, optionally carrying a therapeutic and/or diagnostic agent, such as a radioactive metal. These compounds have a much reduced accumulation rate in blood and benign organs, such as kidney and liver, compared to the accumulation rate in neoplastic tissues, and are more rapidly eliminated from blood. The invention further relates to a method of diagnosis and a method of treatment of a neoplastic disease or an infection by microorganisms in a mammal by exposing the mammal to a period of a vitamin B12 free diet, and subsequently applying a cobalamin derivative of the invention carrying a diagnostic and/or therapeutic agent. By selecting cobalamin derivatives acting as vitamin B12 substitutes, the risk of the formation of resistant off-spring in neoplastic tissue is much reduced.
摘要:
The present invention relates to a metal complex of the general formula M(L)n, wherein each L is independently selected and represents a ligand and at least one L is vitamin B12 (cyanocobalamin) or a derivative thereof bound through the nitrogen atom of its cyanide group to M, which is an element selected from the transition metals, thus, forming a M-NC—[Co] moiety with [Co] representing vitamin B12 without cyanide and wherein n is 1, 2, 3, 4, 5 or 6. The complex can be prepared by mixing a precursor molecule with vitamin B12. The metal complexes can be used for radiodiagnostics, chemotherapy and radionuclide therapy.
摘要:
The present invention relates to a metal complex of the general formula M(L)n, wherein each L is independently selected and represents a ligand and at least one L is vitamin B12 (cyanocobalamin) or a derivative thereof bound through the nitrogen atom of its cyanide group to M, which is an element selected from the transition metals, thus, forming a M-NC-[Co] moiety with [Co] representing vitamin B12 without cyanide and wherein n is 1, 2, 3, 4, 5 or 6. The complex can be prepared by mixing a precursor molecule with vitamin B12. The metal complexes can be used for radiodiagnostics, chemotherapy and radionuclide therapy.
摘要:
The present invention relates to a process for generating a water soluble metal complexed agent, comprising contacting a solid phase bound organic conjugate represented by the formula I with [M(H2O)3(CO)3]n+, under suitable conditions to cause the formation of a coordinate bond between [M(H2O)3(CO)3]n+ and the tertiary amine nitrogen atom of the solid phase bound organic conjugate and thereby the release of the metal complexed agent thus formed from the support. The invention further relates to the conjugate of formula (I) and to a kit for performing the process.
摘要翻译:本发明涉及一种产生水溶性金属络合剂的方法,包括使由式I表示的固相结合的有机共轭与[M(H 2 H 2 O)3 u> 在适合的条件下,使[M(H 2 H 2 O)2 +(CO)3 N] 因此,固相结合有机共轭物的叔胺氮原子,从而释放金属络合剂,因此, 由支持形成。 本发明还涉及式(I)的缀合物和用于进行该方法的试剂盒。
摘要:
The present invention relates to novel histidine derivatives that can be used for the labeling of biomolecules with radioactive metal tricarbonyls. The new derivatives have a histidine that is derivatized at the Nε and at least protected at the Nα and optionally at the Nδ; or derivatized at the Nα and at least protected at the Nα and optionally at the Nδ; or derivatized at the Nε and Nα and at least protected at the Nα and optionally at the Nδ; or derivatized at the Nε; or derivatized at the Nα; or derivatized at the Nε and Nα; or at least protected at the Nα and optionally at the Nδ.
摘要:
The invention relates to the use of metal tricarbonyl compounds of the general formula [M(CO),L,]′, wherein M is rhenium or technetium or an isotope thereof and L is a ligand, for the preparation of a medicament for the treatment of cancer that is both radiotherapeutic and chemotoxic when a radioactive metal is used and chemotoxic when cold rhenium or macroscopic amounts of long-lived Tc-99 is used. The medicament is in particular chemotoxic by causing intrastrand linkages in DNA. In a specific embodiment at least one of L is not OH2. The invention further relates to novel compounds of the general formula IM(CO)3XIX2X3]+ and their use, wherein M is rhenium or technetium or an isotope thereof and at least one X1. X2 and X3 is a monodentate ligand; or two of X, X2 and X3 are part of a bidentate ligand and the other one is optionally a monodentate ligand.
摘要翻译:本发明涉及通式[M(CO),L,]'的金属三羰基化合物的用途,其中M是铼或锝或其同位素,L是配体,用于制备治疗药物 当放射性金属被使用时既放射治疗又具有化学毒性,并且当使用冷铼或宏观量的长寿命Tc-99时具有化学毒性。 该药物特别是通过在DNA中引起链内连锁的化学毒性。 在具体实施方案中,L中的至少一个不是OH 2。 本发明还涉及通式为IM(CO)3 XIX 2 X 3] +的新型化合物及其用途,其中M为铼或锝或其同位素和至少一种X1。 X2和X3是单齿配体; X,X 2和X 3中的两个是二齿配体的一部分,另一个是任选的单齿配体。
摘要:
The present invention relates to compounds that have a novel use as a carbon monoxide source and optionally as a reducing agent in the preparation of transition metal carbonyl complexes. The compounds are in general compounds of formula (I) wherein X1, X2 and X3 are the same or different and either a Lewis base or hydride and Y is a sigma donating group. The invention furthermore relates to a method for the preparation of borane carbonate and to the use of H3BCO as a reducing agent.
摘要:
The present invention relates to kits including compounds that may be used as a carbon monoxide source and optionally as a reducing agent in the preparation of transition metal carbonyl complexes.
摘要:
The present invention relates to new rhenium compounds of formula (I) with medical utility, corresponding pharmaceutical compositions as well as medical uses thereof.