78314-12-2

A manufacturing method of the present invention reduces treatment processes when manufacturing a contrast medium or an intermediate thereof, and thus generates less waste solvent, thereby being eco-friendly and capable of significantly reducing a manufacturing cost. Therefore, the manufacturing method of the present invention is economical and suitable for mass production since the production cost of the contrast medium can be greatly reduced.

The present invention relates to a method for preparing an intermediate of contrast agent or contrast agent. Also, the manufacturing cost can be significantly reduced. , The manufacturing method of the present invention can greatly reduce the production cost of contrast agents and is suitable for mass production. (by machine translation)

The present invention relates to a method for producing a contrast medium with high purity and high efficiency, and since no methyl iodide and the like are used in a production process, no salt is generated or only a very small amount thereof is generated, and a high purity and high efficiency contrast medium can be produced without complicated purification and washing steps. In addition, a small amount of salt can be easily removed by washing with water.COPYRIGHT KIPO 2018

Compounds of formula (I) RA—CO—N(R2)—(CR12)n—N(R5)—RB and salts or optical active isomers thereof, wherein each R1 independently are the same or different and denotes

The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing two lin

The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing a triamine alkyl central moiety allowing for the arrangement of three iodinated phenyl groups bound thereto. The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging and to contrast media containing such compounds.

The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing a tris(aminoalkyl)amine group allowing for the arrangement of three iodinated phenyl groups bound thereto. The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging and to contrast media containing such compounds.

The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing two lin

The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing two lin

The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing two lin

The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing two linked iodinated phenyl groups of the general formula (I) and salts or optical active isomers thereof, wherein each R1 independently are the same or different and denotes a hydrogen atom or a C1 to C4 straight or branched alkyl group which is optionally substituted by 1 to 4 - OH groups; each of R2 independently are the same or different and denote a hydrogen atom or a C1 to C4 straight or branched alkyl group; each R3 independently are the same or different and denotes a hydrogen atom or a C1 to C4 straight or branched alkyl group which is optionally substituted by 1 to 4 - OH groups; each R4 independently are the same or different and denote C1 to C6 straight or branched alkyl moieties substituted by up to 6 -OH groups; and each R5 independently are the same or different and denote C1 to C6 straight or branched alkyl moieties substituted by up to 6 -OH groups; and X denotes a straight chain alkylene moiety with 3 to 10 carbon atoms, a 1,4- cyclohexylene group, or X together with the adjacent -NR1 groups forms a 1,4- piperazine group or a 4-aminopiperidine group. The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging, and to contrast media containing such compounds.

Compounds of formula (I) RA-CO-N(R2)-(CR12)n-N(R5)-RB and salts or optical active isomers thereof, wherein each R1 independently are the same or different and denotes

The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing an aliphatic central moiety containing amide functions allowing for the arrangement of three iodinated phenyl groups bound thereto. The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging and to contrast media containing such compounds.

Triiodinated isophthalamide derivatives, useful as X-ray contrast agents, having at least one amide group derived from the amino-alcohol, 3-(N-2-hydroxyethyl)amino-1,2-propanediol, which provides high water solubility and low mammalian toxicity, and methods of preparing them. Methods of preparing 3-(N-2-hydroxyethyl)amino-1,2-propanediol are provided.

α, ω-BIS-[5-(DIHYDROXYALKYL) AMINOCARBONYL-3-HYDROXYACYL-AMINO-2,4,6-TRIIODO-BENZOYL-AMINO]-OXAALKANE COMPOUNDS OF THE FORMULA STR1 wherein R1 is STR2 R and R' are hydrogen or methyl, R2 is dihydroxyalkyl having 3 or 4 carbon atoms, N is 2 or 3, M is an integer between 1 and 5, and N(m+1) is an integer between 4 and 12, Are readily soluble in water to yield injectable radiopaque contrast compositions which are well tolerated and stable. The compounds are prepared in good yields by reacting a reactive derivative of a 5-(di-hydroxyalkyl)aminocarbonyl-3-acyloxyacylamino-2,4,6-triiodo-benzoic acid with an α,ω-diamino-oxaalkane of the formula