Abstract: Novel methods, processes and metal complexes attached to a hypoxia-localizing moiety comprising a metal, preferably radionuclide of rhenium or technetium; a hypoxia-localizing moiety; and, a complexing ligand, wherein said ligand and said radionuclide combined have cell membrane permeabilities greater than that of sucrose, are disclosed.

Abstract: A method for the purification of dinitroanilines having herbicidal activity by means of the known reactions of denitrosation using acid, and denitration in a neutral or basic environment in the presence of a phase-transfer catalyst, wherein:the denitrosation reaction is effected on the dinitration mixture containing the dinitroaniline of interest and the corresponding unwanted N-nitroso- and N-dinitroaniline impurities, and in the absence of solvent,the denitration reaction is conducted sequentially to the denitrosation reaction in the same reactor with the addition to the denitrosation product as such of an aqueous base, and of the said phase-transfer catalyst.

Abstract: A method for imaging mammalian tissue utilizing a non-ionic complex of a paramagnetic ion of lanthanide element and a macrocyclic chelating agent.

Abstract: Novel methods, processes and metal complexes attached to a hypoxia-localizing moiety comnprisinga metal, preferably radionuclide of rhenium or technetium;a hypoxia-localizing moiety; and,a complexing ligand, wherein said ligand and said radionuclide combined have cell membrane permeabilities greater than that of sucrose, are disclosed.

Abstract: Novel compounds containing a heteroatom-bearing bridge and novel complexes of these compounds with metals. The novel compounds and complexes are useful in diagnostic and therapeutic methods.

Abstract: Novel methods, processes and metal complexes attached to a hypoxia-localizing moiety comprisinga metal, preferably radionuclide of rhenium or technetium;a hypoxia-localizing moiety; and,a complexing ligand, wherein said ligand and said radionuclide combined have cell membrane permeabilities greater than that of sucrose, are disclosed.

Abstract: Novel compounds containing a heteroatom-bearing bridge and novel complexes of these compounds with metals. The novel compounds and complexes are useful in diagnostic and therapeutic methods.

Abstract: Novel compounds of the formula ##STR1## where G.sup.1 and G.sup.2 are each independently --OH or --N(R.sup.2).sub.2, provided that at least one of G.sup.1 and G.sup.2 is --N(R.sup.2).sub.2, where each R.sup.2 is independently hydrogen, alkyl, aryl, acyl or --(A).sub.p --R.sup.a and the other variables are as defined in the specification and claims, and novel complexes of these compounds with metals are useful in diagnostic and therapeutic methods.

Abstract: Novel compounds containing a heteroatom-bearing bridge and novel complexes of these compounds with metals. The novel compounds and complexes are useful in diagnostic and therapeutic methods.

Abstract: Novel compounds of the formula ##STR1## where G.sup.1 and G.sup.2 are each independently --OH or --N(R.sup.2).sub.2, provided that at least one of G.sup.1 and G.sup.2 is --N(R.sup.2).sub.2, where each R.sup.2 is independently hydrogen, alkyl, aryl, acyl or --(A).sub.p --R.sup.a and the other variables are as defined in the specification and claims, and novel complexes of these compounds with metals are useful in diagnostic and therapeutic methods.

Abstract: Novel compounds containing a heteroatom-bearing bridge and novel complexes of these compounds with metals. The novel compounds and complexes are useful in diagnostic and therapeutic methods.

Abstract: New nonionic radiographic contrast agents having the formula ##STR1## wherein Y is a single bond, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--, --OCH.sub.2 --, ##STR2## --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --CH.sub.2 --, --O-- or ##STR3## R.sub.1, R.sub.1 ' and R.sub.2 are the same or different and are hydrogen, alkyl or hydroxyalkyl.Hydroxyalkyl refers to such alkyl groups having 1 or more hydroxy groups. Preferred hydroxyalkyl groups include: ##STR4## R.sub.3 and R.sub.4 are the same or different and are hydrogen, methyl or --CH.sub.2 CH.sub.2 OH; R.sub.5 is hydrogen, alkyl, --CH.sub.2 CH.sub.2 OH, CH.sub.2 OH or OH and R.sub.6 is alkyl, --CH.sub.2 CH.sub.2 OH, CH.sub.2 OH, OH or hydrogen and may be the same or different than R.sub.5 and m is zero or one, with the proviso that no methylene or methine carbon atom of the heterocyclic ring is attached to both a nitrogen and an oxygen atom with the additional proviso that when Y is a single bond, m is not zero.

Abstract: Novel compounds containing a heteroatom-bearing bridge and novel complexes of these compounds with metals. The novel compounds and complexes are useful in diagnostic and therapeutic methods.

Abstract: New nonionic radiographic contrast agents having the formula ##STR1## wherein Y is a single bond, ##STR2## R.sub.1, R.sub.1 ' and R.sub.2 are the same or different and are hydrogen, alkyl or hydroxyalkyl.Hydroxyalkyl refers to such alkyl groups having 1 or more hydroxy groups. Preferred hydroxyalkyl groups include: ##STR3## R.sub.3 and R.sub.4 are the same or different and are hydrogen, methyl or --CH.sub.2 CH.sub.2 OH; R.sub.5 is hydrogen, alkyl, --CH.sub.2 CH.sub.2 OH, CH.sub.2 OH or OH and R.sub.6 is alkyl, --CH.sub.2 CH.sub.2 OH, CH.sub.2 OH, OH or hydrogen and may be the same or different than R.sub.5 and m is zero or one, with the proviso that no methylene or methine carbon atom of the heterocyclic ring is attached to both a nitrogen and an oxygen atom with the additional proviso that when Y is a single bond, m is not zero. These new contrast agents are water soluble and have desirable low osmolality and anticoagulant properties.

Abstract: Novel aromatic amide compounds comprising a ligand nucleus containing at least one aminocarboxylate, aminophosphonate and/or aminohydroxamate chelating group, substituted with a substituted aromatic amide group of the formula ##STR1## wherein R is ##STR2## or --[(CH.sub.2).sub.2 --Y]--R.sub.13, salts and/or multimers thereof, and metal chelates, particularly useful for MRI of the hepatobiliary system.

Abstract: Compounds, useful as radiolabeling reagents, including a trihalogenated phenyl ring and having the formula ##STR1## wherein X.sub.1, X.sub.2 and X.sub.3 are halogens, one of which may be a radiohalogen, are disclosed. The invention further includes radiohalogenated proteins as well as processes for preparing such reagents and radiohalogenated proteins.

Abstract: The present process involves ring opening and ring closure of compounds containing a tetrahydrofuroyl ##STR1## to provide facile synthesis of compounds containing a piperidin-2-one group of the formula ##STR2##

Abstract: In accordance with the present invention a novel method and composition for using nonionic contrast media to reduce the risk of clot formation in a diagnostic procedure is disclosed. Novel compositions for such method are also disclosed. The present method comprises employing a triiodinated phenyl contrast agent having a heterocyclic group or a dimeric triiodinated phenyl contrast agent having one or more heterocyclic groups.

Abstract: A method for imaging mammalian tissue utilizing a non-ionic complex of a paramagnetic ion of lanthanide element and a macrocyclic chelating agent.

Abstract: Compounds, useful as radiolabeling reagents, including a trihalogenated phenyl ring and having the formula ##STR1## wherein X.sub.1, X.sub.2 and X.sub.3 are halogens, one of which may be a radiohalogen, are disclosed. The invention further includes radiohalogenated proteins as well as processes for preparing such reagents and radiohalogenated proteins.