Oxadiazole-substituted naphtho[2,3- b ]thiophene-4,9-diones as potent inhibitors of keratinocyte hyperproliferation. Structure−activity relationships of the tricyclic quinone skeleton and the oxadiazole substituent
3-b]thiophene-4,9-diones were synthesized in which the tricyclic quinone skeleton was systematically replaced with simpler moieties, such as structures with fewer rings and open-chain forms, while the oxadiazole ring was maintained. In addition, variants of the original 1,2,4-oxadiazole ring were explored. Overall, the complete three-ring quinone was essential for potent suppression of human keratinocyte
Expeditious and Efficient Synthesis of Benzoxazoles, Benzothiazoles, Benzimidazoles Catalyzed by Ga(OTf)3 under Solvent-Free Conditions
作者:Juyan Liu、Qian Liu、Wei Xu、Weilu Wang
DOI:10.1002/cjoc.201180310
日期:2011.8
new and efficient method for the synthesis of benzoxazoles, benzothiazoles, benzimidazoles from reactions of o‐substituted aminoaromatics with orthoesters in the presence of catalytic amounts of Ga(OTf)3under solvent‐free conditions is presented. The remarkable features of this new protocol are high conversion, very short reaction times, cleaner reaction profiles under solvent‐free conditions, straight
Convenient synthesis of 2,3-disubstituted quinazolin-4(3H)-ones and 2-styryl-3-substituted quinazolin-4(3H)-ones: applications towards the synthesis of drugs
作者:Dinesh Kumar、Pradeep S. Jadhavar、Manesh Nautiyal、Himanshu Sharma、Prahlad K. Meena、Legesse Adane、Sahaj Pancholia、Asit K. Chakraborti
DOI:10.1039/c5ra03888j
日期:——
Simple, convenient, and green synthetic protocols have been developed for the one pot synthesis of 2,3-disubstituted quinazolin-4(3H)-ones and 2-styryl-3-substituted quinazolin-4(3H)-ones under catalyst and solvent free conditions.
The present invention relates to acetyl coenzyme-A carboxylase (“ACC”) inhibiting compounds of the formula
wherein the variables are as defined herein. In particular, the present invention relates to ACC1 and/or ACC2 inhibitors, compositions of matter, kits and articles of manufacture comprising these compounds, methods for inhibiting ACC1 and/or ACC2, and methods of making the inhibitors.
Synthesis of 2-substituted benzimidazoles by iodine-mediated condensation of orthoesters with 1,2-phenylenediamines
作者:Zhan-Hui Zhang、Jian-Jiong Li、Yuan-Zhe Gao、Yu-Heng Liu
DOI:10.1002/jhet.5570440642
日期:2007.11
Iodine was found to be an efficient catalyst for the synthesis of 2-substitutedbenzimidazoles by the condensation of orthoesters and 1,2-phenylenediamines in good to excellent yields under mild reaction conditions.