CAS: 19547-89-8; (R)-Ethyl 2-Acetamido-3-(Acetylthio)Propanoate

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18725-37-6 1114-55-2 19547-88-7

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CAS号108-24-7 乙酸酐

📜L-半胱氨酸乙酯盐酸盐,乙酸酐置于三乙胺体系中,用 二氯甲烷 用作溶剂,以72%的收率获得s,N-二乙酰基-L-半胱氨酸乙酯
参考文献:硫酯,硫代氨基甲酸酯和硫代酰胺的催化氢化
标题:硫酯,硫代氨基甲酸酯和硫代酰胺的催化氢化
摘要:硫酯与 H2 的直接氢化提供了一种简便且无废物的方法来获得醇和硫醇.然而,没有记录该反应的报告,可能是因为生成的硫醇与典型的氢化催化剂不相容.在这里,我们报告了硫酯的有效和选择性氢化.该反应由无添加剂的吖啶基钌配合物催化.各种硫酯被完全氢化成相应的醇和硫醇,对酰胺,酯和羧酸基团具有优异的耐受性.硫代氨基甲酸酯和硫代酰胺也在类似条件下进行氢化,大大扩展了有机硫化合物氢化的应用.
Doi:10.1021/jacs.0C10884

专利信息

专利号:US-2008081082-A1
优先权日:2000-11-21
标题:Topical Skin Compositions, Their Preparation, and Their Use
发明人：ZIMMERMAN AMY C; DEPPA DEBRA J; O'TOOLE DEBORAH A; MAYNE JAMES R
权利人:ACCESS BUSINES GROUP INTERNAT
摘要:Topical skin compositions include a complex containing components to provide a defense against the various pathway mechanisms of free radicals, reactive oxygen species, reactive nitrogen species, and other oxidizing species on the human body including the skin. The compositions may be administered by topically applying them in an amount to inhibit those mechanisms. The compositions and methods are directed to the prevention of the adverse or detrimental effects of free radicals, reactive oxygen species, reactive nitrogen species, and other oxidizing species on the human body including the skin. Thus, the compositions according to the invention improve barrier function, inhibit elastase and collagenase, and/or promote synthesis of collagen and elastin.

专利号:US-2008124409-A1
优先权日:2000-11-21
标题 :Topical Skin Compositions, Their Preparation, and Their Use
发明人：ZIMMERMAN AMY C; DEPPA DEBRA J; O'TOOLE DEBORAH A; MAYNE JAMES R
权利人:ACCESS BUSINESS GROUP INT LLC
摘要:Topical skin compositions include a complex containing components to provide a defense against the various pathway mechanisms of free radicals, reactive oxygen species, reactive nitrogen species, and other oxidizing species on the human body including the skin. The compositions may be administered by topically applying them in an amount to inhibit those mechanisms. The compositions and methods are directed to the prevention of the adverse or detrimental effects of free radicals, reactive oxygen species, reactive nitrogen species, and other oxidizing species on the human body including the skin. Thus, the compositions according to the invention improve barrier function, inhibit elastase and collagenase, and/or promote synthesis of collagen and elastin.