摘要:
Metalloporphyrin-metal complex conjugates are prepared by reacting a porphyrin-metal complex conjugate with a metal acetylacetoane in a solvent or solvent mixture at a temperature from room temperature to 150° C. in concentrations of 3-30% in the metalloporphyrin-metal complex conjugate.
摘要:
The invention relates to a process for the production of diethylenetriaminepentacarboxylic acid tetraesters of general formula I ##STR1## in which R.sup.1 and Z have different meanings.
摘要:
The invention relates to a process for the production of perbenzylated 1-O-glycosides of general formula I or salts thereof in which sugar1 is a monosaccharide that is functionalized in 1-OH-position, R represents benzyl, n means 2, 3 or 4, X means —COO— or —NH— and L means a straight-chain, branched, saturated or unsaturated C1-C30 carbon chain, which optionally is interrupted or substituted by groups. The process according to the invention starts from economical starting materials, provides good yields and allows the production of perbenzylated saccharides with 1-O-functionalized side chains on an industrial scale.
摘要:
The invention relates to a process for the production of peracylated 1-O-glycosides of general formula I or salts thereof in which sugar1 is a monosaccharide that is functionalized in 1-OH-position, R represents methyl, ethyl, propyl, isopropyl, tbutyl, phenyl, n means 2, 3 or 4, X means —COO— or —NH—and L means a straight-chain, branched, saturated or unsaturated C1-C30 carbon chain, which optionally is interrupted or substituted by groups. The process according to the invention starts from economical starting materials, provides good yields and allows the production of peracylated saccharides with 1-O-functionalized side chains on an enlarged scale.
摘要:
Described herein are disubstituted p-fluorobenzenesulfonamides, containing a CF.sub.3 group, of general formula I ##STR1## which are suitable as NMR diagnostic agents.
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:
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 new monofunctionalized ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid and triethylenetetraaminehexaacetic acid derivatives, their production and their use for the production of pharmaceutical agents.
摘要:
Imidazole derivatives of the formula ##STR1## wherein Ar.sub.1 and Ar.sub.2 are each phenyl; phenyl substituted by halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or C.sub.2-6 dialkylamino; pyridyl; furyl; or thienyl; with the proviso that Ar.sub.1 and Ar.sub.2 are not both unsubstituted phenyl;R.sub.1 is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkyl substituted by hydroxy, C.sub.1-4 alkoxy or C.sub.1-6 alkanoyloxy;n is 0, 1 or 2; andZ is a C.sub.2-6 -alkyl or -alkenyl residue substituted by one or two of hydroxy, C.sub.1-4 alkoxy, C.sub.2-8 alkylenedioxy, C.sub.1-6 alkanoyloxy or benzoyloxy, or by one alkoxycarbonyl group;and the salts thereof with physiologically acceptable acids, possess valuable pharmacological properties.
摘要:
2-Amino-1-(1,3-dioxolan-4-yl)ethanol compounds of formula (I) ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and can be hydrogen or a lower alkyl group of 1-4 carbon atoms; or when R.sup.2 is an alkyl group of 1-4 carbon atoms, R.sup.1 can also be an alkoxy group of 1-4 carbon atoms; or R.sup.1 and R.sup.2 combined form an alkylene residue of 5 or 6 carbon atoms,are especially suited as intermediates in the production of opacifying compounds useful in X-ray contrast media.