C07F3/08

Complex compounds of germanium, methods for producing same, and drugs

The invention relates to the development of drugs intended for the prophylaxis and/or treatment of viral diseases caused, in particular, by herpes viruses. What are proposed are complex compounds of germanium having the general structural formula:
Ge.sub.x[AD][CA].sub.y[AA].sub.2   (1), where AD is a derivative of a nitrogenous base of the purine series that has antiviral activity and can be selected from guanine derivatives, such as acyclovir, valacyclovir, gancyclovir and pencyclovir, or from adenine derivatives, such as vidarabine; CA is a hydroxycarboxylic acid which can be selected from acids such as (but not limited to) citric acid, lactic acid and malic acid; AA is an amino acid which can be selected from various a-amino acids, such as arginine, gylcine, lysine and threonine, and where x=1-2, y=2-4 and z=0-2. Complex compounds of germanium have a high level of antiviral and immune-stimulating activity and are readily soluble in water. The above mentioned compounds are produced by producing an aqueous suspension of germanium dioxide, adding a hydroxycarboxylic acid, a derivative of a nitrogenous base of the purine series and, optionally, but preferably, an amino acid thereto, heating the mixture produced at a temperature of 40-100° C. for 3-14 hours while stirring and removing the water from the solution, thus producing a complex compound of germanium.

IONIC SOLID

Provided is an ionic solid having pores for incorporating a substance therein.

Method of development and use of catalyst-functionalized catalytic particles to increase the mass transfer rate of solvents used in acid gas cleanup

The present invention relates to methods for improving carbon capture using entrained catalytic-particles within an amine solvent. The particles are functionalized and appended with a CO.sub.2 hydration catalyst to enhance the kinetics of CO.sub.2 hydration and improve overall mass transfer of CO.sub.2 from an acid gas.

PERYLENE DIIMIDE BASED MEMBRANE AND METHODS OF USE THEREOF

This invention is directed to filtration system, filtration apparatus and methods of use thereof, wherein the filtration system comprises a solid support, perylene diimide based membrane layer and a polymer, specifically a Nafion polymer. The system and apparatus of this invention enables filtration of solutes such as: dyes, salts, heavy metal ions, pharmaceuticals and small organic molecules.

Method of increasing mass transfer rate of acid gas scrubbing solvents

A method and catalysts for increasing the overall mass transfer rate of acid gas scrubbing solids is disclosed. Various catalyst compounds for that purpose are also disclosed.

Amine appended bimetallic metal-organic framework (MOF-74) for carbon dioxide capture and method of preparation thereof

A metal-organic framework (MOF) includes cadmium, magnesium, linking units of 2,5-dihydroxyterephthalic acid complexed with cadmium and magnesium, and units of guanidine in an amount of 1 to 25 percent by weight (wt. %) based on the total weight of the MOF. The units of guanidine are reacted with the linking units of 2,5-dihydroxyterephthalic acid. The MOF is in the shape of spherical particles with a longest dimension of 50 to 250 nanometers (nm).

Amine appended bimetallic metal-organic framework (MOF-74) for carbon dioxide capture and method of preparation thereof

A metal-organic framework (MOF) includes cadmium, magnesium, linking units of 2,5-dihydroxyterephthalic acid complexed with cadmium and magnesium, and units of guanidine in an amount of 1 to 25 percent by weight (wt. %) based on the total weight of the MOF. The units of guanidine are reacted with the linking units of 2,5-dihydroxyterephthalic acid. The MOF is in the shape of spherical particles with a longest dimension of 50 to 250 nanometers (nm).