[EN] PROCESS FOR THE PRODUCTION OF DIACYL PEROXIDES<br/>[FR] PROCÉDÉ DE PRODUCTION DE PEROXYDES DE DIACYLE
申请人:NOURYON CHEMICALS INT BV
公开号:WO2020249688A1
公开(公告)日:2020-12-17
Process for the production of a diacyl peroxide involving the reaction of an anhydride with hydrogen peroxide, removal of the formed carboxylic acid, production of an anhydride from said carboxylic acid, and recycling of the anhydride within the process.
[EN] ALPHA HELIX MIMETICS AND METHODS RELATING THERETO<br/>[FR] MIMÉTIQUES D'HÉLICE ALPHA ET PROCÉDÉS S'Y RAPPORTANT
申请人:PRISM BIOLAB CORP
公开号:WO2012115286A1
公开(公告)日:2012-08-30
Alpha-helix mimetic structures and compounds represented by the formula (I) wherein the general formula and the definition of each symbol are as defined in the specification, a compound relating thereto, and methods relating thereto, are disclosed. Applications of these compounds in the treatment of medical conditions, e.g., cancer diseases, fibrotic diseases, and pharmaceutical compositions comprising the mimetics are further disclosed.
Functionalization of carboxylic anhydrides at α-carbon with hypervalent iodine reagents: one-pot conversion of anhydrides to 2-sulfonyloxycarboxylate esters
作者:Jeffrey M Goff、Michael W Justik、Gerald F Koser
DOI:10.1016/s0040-4039(01)01028-0
日期:2001.8
The treatment of carboxylic anhydrides with iodine(III) sulfonate reagents at ca. 100°C and esterification of the reaction mixtures with MeOH/TsOH·H2O affords 2-sulfonyloxycarboxylate esters. This is consistent with enolic behavior in the anhydrides.
Cooperativity between Non-polar and Ionic Forces in the Binding of Bacterial Cell Wall Analogues by Vancomycin in Aqueous Solution.
作者:MICHAEL F. CRISTOFARO、DANIEL A. BEAUREGARD、HUSHENG YAN、NIGEL J. OSBORN、DUDLEY H. WILLIAMS
DOI:10.7164/antibiotics.48.805
日期:——
butyl, and isohexyl groups to generate novel vancomycin analogues. The binding of vancomycin and these vancomycin analogues to the bacterial cell wall analogue di-N-Ac-L-Lys-D-Ala-D-Ala (DALAA) was studied by NMR techniques and UV spectroscopy. The effects that these structural modifications of the carboxylate binding pocket of vancomycin have on the antibiotic-DALAA recognition process show that a cooperative
METHOD FOR PRODUCING CYCLIC SULFONIC ACID ESTER AND INTERMEDIATE THEREOF
申请人:Kuramoto Ayako
公开号:US20120130089A1
公开(公告)日:2012-05-24
The present invention is directed to provide an efficient production method which is capable of not only obtaining a cyclic sulfonic acid ester (sultone) at low cost and in high yield, but also the sulfonic acid ester (sultone) stably even in a commercial scale. The present invention relates to a method for producing hydroxysultone comprising a first step where a diol having a specified structure and a thionyl halide are reacted to obtain a cyclic sulfite having a specified structure, and a second step where the cyclic sulfite is reacted with water or/and alcohol; a method for producing an unsaturated sultone having a specified structure comprising a third step where a hydroxylsultone having a specified structure is reacted with an acid halide or an acid anhydride to obtain an intermediate, subsequently the intermediate is treated with a base; as well as a cyclic sulfite having a specified structure.