A series of 1,2-dihydronaphtho[2,1-b]furan derivatives were synthesized by cyclizing 1-(aryl/alkyl(arylthio)methyl)-naphthalen-2-ol and pyridinium bromides in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in very good yield. The synthesized compounds were evaluated for their anti-proliferative potential against human triple negative MDA-MB-468 and MCF-7 breast cancer cells and non-cancerous
在1,8-二氮杂双环存在下,通过环化1-(芳基/烷基(芳硫基)甲基)-萘-2-醇和溴化吡啶鎓,合成了一系列1,2-二氢萘并[2,1- b ]呋喃衍生物[5.4.0]十一碳7烯(DBU)的收率非常好。使用MTT实验评估了合成的化合物对人三阴性MDA-MB-468和MCF-7乳腺癌细胞以及非癌性WI-38细胞(肺成纤维细胞)的抗增殖潜力。在21种合成化合物中,三种化合物(3a,3b和3 s)显示出有希望的抗癌潜力,并且根据一些生化和微观实验的结果,发现化合物3b具有最佳的抗增殖活性。
Reactions of <i>o</i>-Quinone Methides with Pyridinium Methylides: A Diastereoselective Synthesis of 1,2-Dihydronaphtho[2,1-<i>b</i>]furans and 2,3-Dihydrobenzofurans
作者:Vitaly A. Osyanin、Dmitry V. Osipov、Yuri N. Klimochkin
DOI:10.1021/jo400621r
日期:2013.6.7
A simple, general route to the 1,2-dihydronaphtho[2,1-b]furans and 2,3-dihydrobenzofurans substituted at C-2 by an acyl or aryl group, starting from phenolic Mannich bases and pyridinium ylides, has been developed. The mechanism of the reaction is believed to involve the formation of the o-quinone methide intermediate, Michael-type addition of the ylide to the o-quinone methide, followed by intramolecular nucleophilic substitution.