Synthesis of 2-Aminocarboxylic Acids on the Basis of Metalated Lithium Acylates
作者:A. V. Zorin、A. O. Lenkova、A. B. Khachaturyan、V. V. Zorin
DOI:10.1134/s1070363218080066
日期:2018.8
acylate α-carbanions with alkyl nitrites to form α-hydroxyiminoacylates, followed by reduction of the latter with tin chloride. The reactions of lithium acylate α-carbanions, generated by the metalation of carboxylic acids with lithium diisopropylamide at 35–40°С in THF under argon, with alkyl nitrites at 45–50°С give 2-hydroxyiminocarboxylic acids in 55–97% yields. The reduction of 2-hydroxyiminocarboxylic
NOVEL SPIROOXYINDOLE COMPOUNDS AND DRUGS CONTAINING SAME
申请人:NAKASHIMA Hisashi
公开号:US20080306102A1
公开(公告)日:2008-12-11
A Spiro oxindole compound represented by formula (1) of the present invention or salt thereof, or their solvate shows a superior inhibitory effect of 11β-hydroxysteroid dehydrogenasel, and is useful as an agent for preventing or treating a disease that involves 11β-hydroxysteroid dehydrogenasel (in particular, diabetes, insulin resistance, diabetes complication, obesity, dyslipidemia, hypertension, fatty liver, or metabolic syndrome).
[EN] N-1 BRANCHED ALKYL SUBSTITUTED IMIDAZO[4,5-C]QUINOLINE COMPOUNDS, COMPOSITIONS, AND METHODS<br/>[FR] COMPOSÉS IMIDAZO[4,5-C]QUINOLÉINE SUBSTITUÉS PAR ALKYLE N-1 RAMIFIÉ, COMPOSITIONS ET PROCÉDÉS
申请人:3M INNOVATIVE PROPERTIES CO
公开号:WO2020245706A1
公开(公告)日:2020-12-10
Imidazo[4,5-c]quinoline compounds having a substituent that is attached at the N-1 position by a branched group, single enantiomers of the compounds, pharmaceutical compositions containing the compounds, and methods of making the compounds are disclosed. Methods of use of the compounds as immune response modifiers, for inducing (or inhibiting) cytokine biosynthesis in humans and animals, and in the treatment of diseases including infectious and neoplastic diseases are also disclosed.
Synthesis and bactericidal activity of amino acid higher ester hydrochlorides
作者:V. E. Limanov、I. R. Svitova、T. B. Kruchenok、I. M. Tsvirova、L. A. Yaroslavskaya
DOI:10.1007/bf00773019
日期:1984.10
been described by the reaction of cesium salts of amino acids with higher alkyl halides [14]. Instead of hydrogen chloride, it was proposed to use strong cation exchangers [ii], and also chlorosulfonic acid [8] as catalysts. It was found that amino acid higher ester hydrochlorides can also be obtained by treating a suspension of an amino acid in alcohol with thionylchloride, phosphorus trichloride
目前工作的目的是在阳离子SAA中寻找有效的微毒杀菌剂。为了研究,我们选择了氨基酸的高级酯的盐酸盐。我们假设这些化合物对温血动物的毒性比其他阳离子 SAA 低,因为合成它们的原料氨基酸比用于制备烷基胺盐和相应季铵化合物的胺毒性小得多。我们已经证明这些化合物具有抗微生物活性,尤其是对于 γ 阳性微生物 [2, 4]。根据[3, 5]的数据,作为杀菌剂,最令人感兴趣的是缬氨酸、β-丙氨酸、B-氨基丁酸和赖氨酸的月桂酸酯的盐酸盐。它们的制备方法非常不完善。已经描述了通过氨基酸盐酸盐与高级醇反应合成氨基酸酯盐酸盐。结果表明,直接酯化只能得到甘氨酸高级酯盐酸盐,并提出通过氨基酸低级酯盐酸盐与高级醇的酯交换反应制备其他氨基酸的衍生物[12]。这些化合物 I 的合成方法已通过氨基酸的铯盐与高级烷基卤化物的反应进行了描述 [14]。建议使用强阳离子交换剂 [ii] 和氯磺酸 [8] 作为催化剂,而不是氯化氢
OXOPIPERAZINE DERIVATIVES
申请人:Inthera Bioscience AG
公开号:US20190185449A1
公开(公告)日:2019-06-20
The present invention relates to novel compounds of formula (I) or formula (Ia)
pharmaceutically-acceptable salts, hydrates, solvates, or stereoisomers thereof, and pharmaceutical compositions of these compounds which are useful for preventive and therapeutic use in human and veterinary medicine.