CAS: 35554-98-4; (S)-2-Amino-3-Sulfopropanoic Acid

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498-40-8 23537-25-9 751470-47-0

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S,S-cystine D-cysteine grassypeptolide A grassypeptolide C

📜(2S)-2-Amino-3-Methoxy-3-Oxopropane-1-Sulfonic Acid置于sodium Hydroxide体系中,用 水 作为反应溶剂,化学反应 8.0H,反应生成 3-磺基-D-丙氨酸
参考文献:由手性氨基醇快速合成不对称的(R)-和(S)-2-氨基链烷磺酸的新方法
标题:由手性氨基醇快速合成不对称的(R)-和(S)-2-氨基链烷磺酸的新方法
摘要:研究了亚硫酸钠将α-氨基醇甲磺酸盐酸盐转化为β-氨基链烷磺酸钠的机理.结果表明,亚硫酸钠首先中和了α-氨基醇甲磺酸盐酸盐,得到了游离的β-氨基醇甲磺酸盐,然后环化成2-烷基氮丙啶.由先前形成的亚硫酸氢钠攻击氮丙啶环的受阻较少的碳原子,然后产生β-氨基链烷磺酸钠盐.基于这一机制的建议,(R)-和(s从手性氨基醇开发了)-2-氨基链烷磺酸.通过wenker法或mitsunobu反应将手性氨基醇转化为手性氮丙啶,并使所形成的氮丙啶与亚硫酸氢钠反应反应生成手性α-氨基链烷磺酸.
DOI:10.1016/s0957-4166(02)00312-9

专利信息

专利号:US-6841559-B1
优先权日:1999-11-19
标 题:Pyridinones to treat and prevent bacterial infections
发明人：ALMQVIST FREDERIC; EMTENAS HANS; HULTGREN SCOTT J; PINKNER JEROME S
权利人:WASHINGTON UNIVERSITY OF ST LO
摘要:Novel pyridinones and their derivatives which are effective in treating or preventing Gram-negative bacterial infections are provided. The pyridinones are stable and easily derivatized; the methods by which these derivatizations occur is described. Two regioselective and functional group tolerant methods for the synthesis of the novel pyridinones are also provided. One such synthetic method involves reacting an imine and a Meldrum's acid derivative in solution. The other synthetic method is a solid phase synthesis of the pyridinones in which an imine is prepared bound to a solid support and a Meldrum's acid derivative is reacted with the imine. Novel imine intermediates useful in the solid phase and solution methods of synthesizing the pyridionones are also described.

专利号:US-2024208900-A1
优先权日:2021-04-16
标题 :Synthesis of dimethyl-c17-32-alkyl sulfonium salts
发明人：STROOT JOERG; ZHERSH SERHII; RIPENKO VASYL
权利人:HELM AG
摘要:The invention relates to a process for the preparation of a dimethyl-C 17-32 -alkyl sulfonium salt, preferably a dimethyl-C 17-32 -alkyl sulfonium halide, more preferably a dimethyl-C 17-32 -alkyl sulfonium chloride, still more preferably dimethyl octadecyl sulfonium chloride, the process comprising the steps of: providing a mixture of a C 17-32 -alkyl halide and dimethyl sulfide; and reacting the C 17-32 -alkyl halide with the dimethyl sulfide.

专利号:US-12043553-B2
优先权日:2019-10-31
标题:Quantum material/vanadium oxide heterostructures, methods of making same, and uses thereof
发明人：BANERJEE SARBAJIT; WATSON DAVID F; ANDREWS JUSTIN L; CHO JUNSANG; SUWANDARATNE NUWANTHI; SHENG AARON
权利人:UNIV NEW YORK STATE RES FOUND; TEXAS A & M UNIV SYS
摘要:The subject invention pertains to the synthesis and characterization of V2O5/CdE NW/QD heterostructures. The V2O5/CdE heterostructures are versatile new materials constructs for light harvesting, charge separation, and the photocatalytic production of solar fuels; polymorphism of V2O5 and compositional alloying of both components provides for a substantial design space for tuning of interfacial energy offsets. Also provided are a new class of type-II heterostructures composed of cadmium chalcogenide QDs (CdE where E=S, Se, or Te) and α-V2O5 nanowires (NWs). The synthesis and characterization of V2O5/CdE NW/QD heterostructures, prepared via successive ionic layer adsorption and reaction (SILAR) and linker-assisted assembly (LAA), the characterization of their photoinduced charge-transfer reactivity using transient absorption spectroscopy, and their performance in the photocatalytic reduction of protons to hydrogen are also disclosed.

专利号:EP-4245856-B1
优先权日:2022-03-15
标题 :Synthesis of functional unspecific peroxidases using a non-fungal eukaryotic cell-free system
发明人：WALTER RUBEN; KUBICK STEFAN; ZEMELLA ANNE
权利人:FRAUNHOFER GES FORSCHUNG

专利号:WO-2022218721-A1
优先权日:2021-04-16
标题:Synthesis of dimethyl-c17-32-alkyl sulfonium salts

专利号:EP-4245856-A1
优先权日:2022-03-15
标 题 :Synthesis of functional unspecific peroxidases using a non-fungal eukaryotic cell-free system