[EN] COMBINATION OF CB2 MODULATORS AND PDE4 INHIBITORS FOR USE IN MEDICINE<br/>[FR] COMBINAISON DE MODULATEURS DU CB2 ET D'INHIBITEURS DE LA PDE4 UTILISEE EN MEDECINE
申请人:GLAXO GROUP LTD
公开号:WO2005074939A1
公开(公告)日:2005-08-18
Combination of one or more CB2 modulators such as a compound of formula (I), (II) and (III); and one more PDE4 inhibitors are useful of treating conditions which are mediated by the activity of CB2 receptors or conditions which are mediated by PDE4, such as an immune disorder, an inflamatory disorder, pain, rheumatoid.
Facile synthesis of pyrido[2,3-d]pyrimidines via cyclocondensation of 4,6-dichloro-2-methylsulfanylpyrimidine-5-carbaldehyde with β-substituted β-aminoacrylic esters
作者:Maria E. Chizhova、Olga Yu. Bakulina、Alexander Yu. Ivanov、Pavel S. Lobanov、Dmitrii V. Dar'in
DOI:10.1016/j.tet.2015.06.085
日期:2015.9
A new facile synthesis of pyrido[2,3-d]pyrimidin-4-ones via cyclocondensation of 4,6-dichloro-2-methylsulfanylpyrimidine-5-carbaldehyde with β-alkyl and β-aryl-β-aminoacrylic esters followed by hydrolysis of chlorine atom at position 4 of pyridopyrimidine ring has been developed. The cyclocondensation was found to be accelerated by acid.
通过4,6-二氯-2-甲基硫烷基嘧啶-5-甲醛与β-烷基和β-芳基-β-氨基丙烯酸酯的环缩合反应然后水解,可轻松合成吡啶并[2,3 - d ]嘧啶-4-酮已经开发了在嘧啶并嘧啶环的4位的氯原子。发现环缩合被酸加速。
Substituted biphenyls
申请人:Bayer Corporation
公开号:US06218431B1
公开(公告)日:2001-04-17
Substituted biphenyls having glucagon receptor antagonistic activity. Claimed compounds have the formula
wherein
R1a and R1b independently represent (C1-C6) alkyl; R2 represents (C1-C10) alkyl or substituted (C1-C10) alkyl wherein the substituents are independently from 1 to 3 of —SR7; R7 represents phenyl, or substituted phenyl wherein the substituents are independently 1-5 of halogen, trifluoromethyl, (C1-C6) alkyl, (C1-C6) alkoxy, nitro, cyano, or hydroxyl; R3 represents substituted (C1-C6) alkyl wherein the substituents are 1-2 hydroxyl groups; G represents a substituent selected from the group consisting of halogen, (C1-C6) alkyl, and OR4 wherein R4 is H or (C1-C6) alkyl; and y is 0 or an integer of 1-3. Pharmaceutical compositions containing such compounds and methods of treatment of glucagon-mediated conditions by administering such compounds are also claimed.
Synthesis of Thiazoles and Isothiazoles via Three-Component Reaction of Enaminoesters, Sulfur, and Bromodifluoroacetamides/Esters
作者:Xingxing Ma、Xiaoxia Yu、Hua Huang、Yao Zhou、Qiuling Song
DOI:10.1021/acs.orglett.0c01275
日期:2020.7.17
three-component strategy for the synthesis of thiazoles and isothiazoles has been developed by employing enaminoesters, fluorodibromoiamides/ester, and sulfur. The thiazoles and isothiazoles were formed via two C–F bond cleavages along with the formation of new C–S, C–N, and N–S bonds. The strategy provides high selectivity for the synthesis of thiazoles/isothiazoles, which have vital applications in
Tetrasubstituted 1,3-Enynes by Gold-Catalyzed Direct C(sp<sup>2</sup>)–H Alkynylation of Acceptor-Substituted Enamines
作者:Chunyu Han、Xianhai Tian、Huili Zhang、Frank Rominger、A. Stephen K. Hashmi
DOI:10.1021/acs.orglett.1c01486
日期:2021.6.18
A gold-catalyzed synthesis of tetrasubstituted 1,3-enynes fromhypervalent iodine(III) reagents and activated alkenes is reported. This reaction involves an in situ formed alkynyl Au(III) species and a subsequent direct C(sp2)–H functionalization of alkenes, offering 26 enynes in 62–92% yield with excellent functional group tolerance.