Tautomeric-Dependent Lactam Cycloaddition with Nitrile Oxide: Facile Synthesis of 1,2,4-Oxadiazole[4,5-a]indolone Derivatives.
Tautomeric-Dependent Lactam Cycloaddition with Nitrile Oxide: Facile Synthesis of 1,2,4-Oxadiazole[4,5-a]indolone Derivatives.
复制标题
互变异构依赖性内酰胺环加成与氧化腈:轻松合成 1,2,4-恶二唑[4,5-a]吲哚酮衍生物
DOI:
10.1021/acsomega.7b00490
复制
发表时间:
2017-07-31
期刊:
影响因子:
4.1
通讯作者:
Lin J
中科院分区:
文献类型:
--
作者:
Jiang KM;Luesakul U;Zhao SY;An K;Muangsin N;Neamati N;Jin Y;Lin J
A concise, metal-free, and gram-scale strategy to convert indoline-2,3-diones to 1,2,4-oxadiazole[4,5-a]indolones through an improved [3 + 2] cycloaddition of α-ketone-lactam with nitrile oxides has been developed. The lactim form of the resonance structure of isatin in protic solvents is the key active dipolarophile that shows chemo- and regioselectivity under experimental and theoretical conditions. This strategy conveniently enabled the assembly of several 1,2,4-oxadiazole[4,5-a]indolines with a broad range of functional groups. Compounds 3a and 4b exhibit cytotoxicity in the NCI/ADR-RES, SKOV3, and OVCAR8 cell lines.
登录
查看更多内容
影响因子:
15
作者:
Kemnitz, Carl R.;Loewen, Mark J.
通讯作者:
Loewen, Mark J.
影响因子:
4.9
作者:
Huang, Pang-Chi;Gandeepan, Parthasarathy;Cheng, Chien-Hong
通讯作者:
Cheng, Chien-Hong
影响因子:
1.8
作者:
Huang, Xianhai;Pissarnitski, Dmitri;Buevich, Alexei
通讯作者:
Buevich, Alexei
影响因子:
9.8
作者:
Chouhan, Mangilal;Senwar, Kishna Ram;Nair, Vipin A.
通讯作者:
Nair, Vipin A.
影响因子:
2.1
作者:
HEMMING, K;LUHESHI, ABN;WESTWOOD, R
通讯作者:
WESTWOOD, R