Synthesis of a pyrimido[4,5-b]azepine analog of 5,10-dideaza-5,6,7,8-tetrahydrofolic acid (DDATHF)
摘要:
The synthesis and biological evaluation of a pyrimido[4,5-b]azepine-based analog of DDATHF, a potential chemotherapeutic agent, are described. (C) 1997, Elsevier Science Ltd.
Structure of Aggregates of trans-4-Alkoxy-4‘-carboxystilbenes in the Solid State and in Microheterogeneous Media. A Link between the “Unit Aggregate” and Extended Arrays
摘要:
Crystals of three 4-alkoxy-4'-carboxy trans-stilbene (ACS) derivatives and a crystal of 4-methoxy-4'-methanoate trans-stilbene have been shown to have structures in which the amphiphilic aromatics are arranged in layers remarkably similar to deposited Langmuir-Blodgett multilayer assemblies. Within each layer there is either a glide or pseudoglide (or herringbone) arrangement of the chromophores very similar to that deduced from physical properties and simulations for structurally related stilbene, azobenzene, and tolan amphiphiles in microheterogeneous media, solution, and Langmuir-Blodgett (LB) films. The fluorescence of the crystals is very similar to that associated with LB films of a water-insoluble amphiphilic ACS that is associated with the aggregate. An analysis of the crystal structure indicates that energetically favorable aromatic-aromatic (edge-face) interaction determines the packing within a layer.
[EN] NOVEL CYCLOSPORIN DERIVATIVES AND USES THEREOF<br/>[FR] NOUVEAUX DÉRIVÉS DE CYCLOSPORINE ET LEURS UTILISATIONS
申请人:S&T GLOBAL INC
公开号:WO2017200984A1
公开(公告)日:2017-11-23
A compound of the Formula (I) is disclosed: (I) or pharmaceutically acceptable salt thereof, wherein the symbols are as defined in the specification. Also described are a pharmaceutical composition comprising the same and a method for treating or preventing viral infections, inflammation, dry eye, central nervous disorders, cardiovascular diseases, cancer, obesity, diabetes, muscular dystrophy, lung, and liver, and kindey diseases, and hair loss using the same.
Synthesis of stilbene analogues by one-pot oxidation-Wittig and oxidation-Wittig–Heck reaction
作者:Akeel S. Saiyed、Krupa N. Patel、Bola V. Kamath、Ashutosh V. Bedekar
DOI:10.1016/j.tetlet.2012.06.090
日期:2012.8
Synthesis of symmetrical (and unsymmetrical) stilbene derivatives is achieved by a combination of one-pot steps of Kornblum type oxidation of benzyl halide, its simultaneous in situ formation of phosphonium salt, and subsequently their Wittig reaction. In other variant it is oxidized to aldehyde, treated with ylide generated from phosphonium salt (CH3PPh3X) to give styrene, and subjected to Pd catalyzed
The present invention provides cryptophycin compounds of Formula I
that are useful in the treatment of neoplasms.
本发明提供了一种在肿瘤治疗中有用的Formula I的cryptophycin化合物。
Reactions of benzyltriphenylphosphonium salts under photoredox catalysis
作者:Andrew M. Boldt、Sidney I. Dickinson、Jonathan R. Ramirez、Anna M. Benz-Weeden、David S. Wilson、Susan M. Stevenson
DOI:10.1039/d1ob01570b
日期:——
The development of benzyltriphenylphosphonium salts as alkyl radical precursors using photoredox catalysis is described. Depending on substituents, the benzylic radicals may couple to form C–C bonds or abstract a hydrogen atom to form C–H bonds. A natural product, brittonin A, was also synthesized using this method.
New carboxamide compounds having melanin concentrating hormone antagonistic activity, pharmaceutical preparations comprising these compounds and process for their manufacture
申请人:Boehringer Ingelheim International GmbH
公开号:US20040242572A1
公开(公告)日:2004-12-02
The present invention relates to carboxamide compounds of general formula I
1
wherein the groups and residues A, B, W, X, Y, Z, R
1
, R
2
, R
3
and k have the meanings given in claim 1. Moreover the invention relates to process for preparing the above mentioned carboxamides as well as pharmaceutical compositions containing at least one carboxamide according to the invention. In view of their MCH-receptor antagonistic activity the pharmaceutical compositions according to the invention are suitable for the treatment of metabolic disorders and/or eating disorders, particularly obesity, bulimia, anorexia, hyperphagia and diabetes.