用相对温和的二乙氨基三氟化硫/四氢呋喃 (DAST–THF) 系统氟化肟,得到亚氨基氟化物。这些化合物被分离出来,并通过 X 射线单晶结构分析确定了它们的结构。亚氨基氟化物与各种亲核试剂的反应有效地以高产率提供酰胺、脒、硫代酰胺和胺衍生物。此外,由肟原位生成亚氨基氟化物的一锅法反应也适用于这些产品的高效合成。肟立体化学和酸不稳定保护基在该系统中保持完整。
GLYCOPEPTIDE AND LIPOGLYCOPEPTIDE ANTIBIOTICS WITH IMPROVED SOLUBILITY
申请人:Rafai Far Adel
公开号:US20120149632A1
公开(公告)日:2012-06-14
The invention relates to derivatives of glycopeptide and lipoglycopeptide antibiotics possessing an altered ionization state with respect to the parent glycopeptide or lipoglycopeptide antibiotic, and having the ability to be regenerated as the parent glycopeptide or lipoglycopeptide antibiotic under physiological conditions. These compounds are useful as antibiotics for the prevention and/or the treatment of bacterial infections.
[EN] MANGANESE BASED COMPLEXES AND USES THEREOF FOR HOMOGENEOUS CATALYSIS<br/>[FR] COMPLEXES À BASE DE MANGANÈSE ET LEURS UTILISATIONS SERVANT À UNE CATALYSE HOMOGÈNE
申请人:YEDA RES & DEV
公开号:WO2017137984A1
公开(公告)日:2017-08-17
The present invention relates to novel manganese complexes and their use, inter alia, for homogeneous catalysis in (1) the preparation of imine by dehydrogenative coupling of an alcohol and amine; (2) C-C coupling in Michael addition reaction using nitriles as Michael donors; (3) dehydrogenative coupling of alcohols to give esters and hydrogen gas (4) hydrogenation of esters to form alcohols (including hydrogenation of cyclic esters (lactones) or cyclic di-esters (di- lactones), or polyesters); (5) hydrogenation of amides (including cyclic dipeptides, lactams, diamide, polypeptides and polyamides) to alcohols and amines (or diamine); (6) hydrogenation of organic carbonates (including polycarbonates) to alcohols or hydrogenation of carbamates (including polycarbamates) or urea derivatives to alcohols and amines; (7) dehydrogenation of secondary alcohols to ketones; (8) amidation of esters (i.e., synthesis of amides from esters and amines); (9) acylation of alcohols using esters; (10) coupling of alcohols with water and a base to form carboxylic acids; and (11) preparation of amino acids or their salts by coupling of amino alcohols with water and a base. (12) preparation of amides (including formamides, cyclic dipeptides, diamide, lactams, polypeptides and polyamides) by dehydrogenative coupling of alcohols and amines; (13) preparation of imides from diols.
PHOSPHONATED GLYCOPEPTIDE AND LIPOGLYCOPEPTIDE ANTIBIOTICS AND USES THEREOF FOR THE PREVENTION AND TREATMENT OF BONE AND JOINT INFECTIONS
申请人:Tanaka Kelly
公开号:US20100113333A1
公开(公告)日:2010-05-06
The present invention is directed to antimicrobial compounds which have an affinity for binding bones. More particularly, the invention is directed to phosphonated derivatives of glycopeptide or lipoglycopeptide antibiotics. These compounds are useful as antibiotics for the prevention or treatment of bone and joint infections, especially for the prevention and treatment of osteomyelitis.
Molecular Catalysts for Selective Hydrogenolysis of Amides
申请人:Eastman Chemical Company
公开号:US20190345178A1
公开(公告)日:2019-11-14
A compound by the name 1,1,1-tris(di(3,5-dimethoxyphenyl)phosphino-methyl)ethane. The compound can be represented by the structure of formula (I):
The compound is useful as a ligand for ruthenium to form an organometallic complex. The complex is an active catalyst for the hydrogenolysis of amides to form amines and optionally alcohols.
Thiophenepyrimidinone compounds and their use in therapy, especially for use in the treatment and/or prevention of a steroid hormone dependent diseases or disorders, such as steroid hormone dependent diseases or disorders requiring inhibition of 17β-hydroxysteroid dehydrogenase enzymes.