摘要:
Compounds, including chelated compounds, which may be used for the delivery of nutrients and micronutrients to plants are provided. In addition, processes for preparing such compounds, compositions comprising such compounds, and methods for delivering nutrients and micronutrients to plants with such compounds are provided.
摘要:
The present disclosure provides a process for preparing iminodisuccinic acid salts using maleic anhydride, aspartic acid, and a base in water. In an example, maleic anhydride and aspartic acid are mixed with a base to form a slurry, preferably having a viscosity of about 1,000 cps or less. Preferably, the pH is raised to about 10 or above to achieve a homogenous clear solution. Water is distilled out increase the concentration of reactants. The solution is then heated to reflux, and the reaction allowed to proceed for a pre- determined time period. The present disclosure also provides a composition comprising about 35 wt% or less maleic anhydride, about 35 wt% or less aspartic acid, water, and a base, wherein said composition has a temperature of about 80°C or less, a pH of about 10 or greater and a viscosity of about 10000 cps or less.
摘要:
An improved aqueous organ preservation solution is provided, which comprises taurine and L-alanine-L-glutamine and glutamic acid. It was found that the combination of these compounds can advantageously be used in such compositions. The organ preservation composition can be stored in a solid state, for example in the form of small particles (e.g. a powder or micronized powder), and be dissolved in water, thereby instantly providing a ready- to-use organ preservation solution.
摘要:
Process for preparation of a mixture of methyl glycine diacetic acid (MGDA) or its respective mono-, di-, trialkali metal salt or its respective mono-, di- or tri-ammonium salt or mixtures thereof, and glutamic acid diacetic acid (GLDA) or its respective mono-, di-, tri-, or tetra-alkali metal or mono-, di-, tri- or tetra-ammonium salt or mixtures thereof, wherein said process com- prises the steps of: (a) dissolution in water of (a1) alanine in its L- or D-enantiomeric form or its respective monoalkali metal salt or mixtures thereof, and (a2) glutamic acid as L- or D-enantiomer or its respective mono-, or dialkali metal or mixtures thereof, wherein the molar ratio of alanine to glutamic acid is in the range of from1:9 to 9:1, (b) converting the mixture obtained in step (a) with formaldehyde and hydrocyanic acid or alkali metal cyanide to the corresponding dinitriles, (c) saponification of the dinitriles resulting from step (b).
摘要:
The present invention provides novel analogues of alpha amino acids, comprising a perfluoro- tert -butyl group, and molecules comprising the novel analogues. Also provided are a wide range of applications of the novel analogues in therapeutics, theranostics and pharmaceuticals as well as in imaging applications. In particular, the use of the novel analogues in detecting or modifying a target molecule is provided.
摘要:
The invention relates to new derivatives of 5-aminolevulinic acid (5-ALA) and their use as photosensitizing agents. In particular, it relates to compounds of general formula I and their pharmaceutically acceptable salts, to methods for preparing such compounds and their medical and cosmetic use, for example in methods of photodynamic therapy and diagnosis: wherein R 1 represents a hydrogen atom or an optionally substituted alkyl or cycloalkyl group; R 2 , each of which may be the same or different, represents a hydrogen atom or an optionally substituted alkyl group; and X is a linking group.
摘要:
The present invention relates to powder compositions of a complex between an acid or a corresponding anion and at least one metal or corresponding metal cation, said corresponding anion or acid being selected from the group containing 2- hydroxy-4-methylthio-butanoic acid (HMTBA), methionine, aspartic acid, alginic acids, pectinic acids and the corresponding anions, and said metal or metal cation being divalent or trivalent. The particle includes an amorphous fraction, the mass of which represents at least 50%, specifically at least 70% and more specifically at least 90% of the total mass of the particle, said particle being substantially free from non-complexed anion or acid and non complexed metal cation or metal.
摘要:
This invention relates to novel compounds suitable for labeling by 18 F and to the corresponding 18 F labeled compounds themselves, 19 F-fluorinated analogues thereof and their use as reference standards, methods of preparing such compounds, compositions comprising such compounds, kits comprising such compounds or compositions and uses of such compounds, compositions or kits for diagnostic imaging by Positron Emission Tomography (PET).