CAS: 563-63-3; Silver(I) Acetate

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专利信息

专利号:US-2024424490-A1
优先权日:2021-01-25
标 题 :Method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles
发明人：WNUK PAWEL; LEWERA ADAM; JURCZAKOWSKI RAFAL; POWALA FILIP; KOLODZIEJCZYK JAN
权利人:UNIV WARSZAWSKI
摘要:The presented invention relates to a method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles, which comprises the following steps:n adsorbing on carbon support complexes of a platinum group metal with a urea complexing agent selected from a group comprising urea, urea derivative, a mixture of urea with at least one urea derivative, and a mixture of at least two urea derivatives; and reducing the complexes adsorbed on the carbon support to metal nanoparticles, forming a product of carbon-supported metal nanoparticles. nn The invention also provides the use of the carbon-supported platinum group metal or metal alloy nanoparticles obtained by the method of the invention as catalyst. n The present invention further relates to a method of adsorption of precursors of platinum group metals on the surface of a carbon support and use of complexes of platinum group metals with urea complexing agent for adsorption of platinum group metal precursors on carbon support.

专利号:WO-2025078335-A1
优先权日:2023-10-09
标 题 :Processes for the preparation of deucravacitinib
发明人：ETAYO PÉREZ PABLO; PUJOL OLLÉ XAVIER; MOLINA NIETO JUAN
权利人:FARMHISPANIA GROUP S L
摘要:The invention relates to processes for the preparation of deucravacitinib of formula (XI), or a pharmaceutically acceptable salt thereof. It also relates to intermediates of formula (V') and (V'') as defined herein useful in the synthesis of this molecule.

专利号:WO-2024258613-A9
优先权日:2023-06-16
标题:Tetrachlorovancomycin and derivatives
发明人：BOGER DALE
权利人:SCRIPPS RESEARCH INST
摘要:A total synthesis of a new class of vancomycin analogues of reduced synthetic complexity was developed. The synthesis, achieved by the addition of two aryl chloride substituents to provide tetrachlorovancomcyin aglycon (Compound II), tetrachlorovancomcyin (Compound I ), and their derivatives, permitted a streamlined total synthesis of the new class of glycopeptide antibiotics by removing atropisomer stereochemical control and enabled the simultaneous and further activated SNAr macrocyclizations that establish the tricyclic skeleton of Compound I. In addition to the antimicrobial evaluation of tetrachlorovancomycin (Compound I), the preparation of key binding pocket and peripherally-modi fied derivatives, which overcome vancomycin resistance and introduce independent and synergistic mechanisms of action, revealed their exceptional antimicrobial potency and provide the foundation for use of this new class of synthetic glycopeptide analogues. Also disclosed are a pharmaceutical composition containing bactericidal amount of tetrachlorovancomycin, a derivative thereof or a salt of either dissolved or dispersed in a pharmaceutically acceptable diluent.

专利号:US-2023046065-A1
优先权日:2019-11-25
标题 :MERGING C(sp3)-H ACTIVATION WITH DNA-ENCODING
发明人：YU JIN-QUAN
权利人:SCRIPPS RESEARCH INST
摘要:Palladium-catalyzed C(sp3)—H arylation of aliphatic carboxylic acids, amides and ketones with BNA-encoded aryl iodides in water is disclosed, Furthermore, sequential C—H arylation chemistry enabled the on-DNA synthesis of structurally-diverse scaffolds containing enriched C(sp3) character, chiral centers, cyclopropane, cyclobutane, and heterocycles. That new chemistry permits preparation of a DNA—encoded library (BEL) technology that can dramatically expedite hit identification in drug discovery owing to its ability to perform protein affinity selection with millions or billions of molecules in a single experiment. The sequential functionalization of multiple C—H bonds provides an unique avenue for creating diversity and complexity from simple starting materials. The use of water as solvent, the presence of DMA, and the extremely low concentration of DMA-encoded coupling partners (0.001 M) have previously hampered the development DMA-encoded C(sp3)—H activation reactions, but many of those hurdles have now been overcome.

专利号:WO-2022158990-A1
优先权日:2021-01-25
标 题 :Method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles

专利号:CN-110343087-B
优先权日:2019-07-11
标题:Synthesis of isoindolinone derivatives and preparation method thereof