摘要:
The invention relates to a method for producing crystalline 3,6,9-triaza-3,6,9-tris(carboxymethyl)-4-(4-ethoxybenzyl)undecanedioic acid of the formula I by saponifying 3,6,9-triaza-3,6,9-tris(tert-butoxycarbonylmethyl)-4-(4-ethoxybenzyl)-undecanedioic acid di-tert-butyl ester of the formula II in an aqueous alkali metal hydroxide solution and using 3,6,9-triaza-3,6,9-tris(carboxymethyl)-4-(4-ethoxybenzyl)undecanedioic acid of the formula I for producing the gadolinium complex of 3,6,9-triaza-3,6,9-tris(carboxymethyl)-4-(4-ethoxybenzyl)undecanedioic acid [(Gd-EOB-DTPA)=Primovist®].
摘要:
The invention concerns a process for the preparation of the calcium complex of 0-(2,3-Dihydroxy-1-(hydroxymethyl)propyl)-1,4,7,10-tetraazacyclodecane-4,7-triacetic acid, also known as Calcobutrol, starting from the pure gadolinium complex (Gadobutrol). The invention furthermore concerns Calcobutrol with a hitherto unknown level of purity.
摘要:
The invention relates to 3,5-dihydroxy-2,2-dimethyl-valeronitriles for the synthesis of epothilones and epothilone derivatives and process for the production of these new intermediate products in the synthesis and the use for the production of epothilones or epothilone derivatives.
摘要:
The invention relates to intermediate products and a new process for the production of benzocycloheptene C. The process for the production of its new intermediate products according to the invention starts from economical starting materials, provides the intermediate stages in high yields and high purity, without chromatographic purification steps, and allows production on an industrial scale.
摘要:
The invention relates to radioactive stents, characterized in that the stent is coated on the surface with the radioactive isotope, as well as processes for their production.
摘要:
A new process for the production of triiodotrimesic acid that is used as an intermediate product for the synthesis of x-ray contrast media is described.
摘要:
The invention relates to hydroxypyridinone derivatives, their metal complexes, their preparation and their use for preparing conjugates with biomolecules. The conjugates are suitable as contrast agents in NMR diagnosis. A high relaxivity is achieved and the NMRD maximum is raised through a specific design of the ligands.
摘要:
The invention relates to pharmaceutical agents that contain at least one fluoroalkyl-containing metal complex that has a critical micelle-formation concentration of 1 nm, and at least one natural or synthetic epothilone or epothilone derivative, optionally with the additives that are commonly used in galenicals.
摘要:
The metal complexes of general formula I in which Hal stands for bromine or iodine, and A1 and A2 have different meanings, are suitable as contrast media.