Towards molecular diversity: dealkylation of tert-butyl amine in Ugi-type multicomponent reaction product establishes tert-butyl isocyanide as a useful convertible isonitrile
已经开发了一种简便有效的无金属,一锅,三组分合成方案,用于通过碘催化的氮杂芳烃苄基CH键的氧化胺化反应,合成具有医学上重要意义的取代的咪唑并[1,2- a ]吡啶。与2-氨基嗪并与异氰酸酯缩合。所提出的方法具有以下优点:底物范围宽,反应条件温和,环境友好,清洁和简单,具有较高原子经济性的方案,且产率较高。筛选合成的化合物在选定的人类癌细胞系中的抗癌活性。化合物4a,4b,4c,4i,7a,图7b和7m的IC 50值范围从4.88±0.28到14.55±0.74μM。
Towards molecular diversity: dealkylation of tert-butyl amine in Ugi-type multicomponent reaction product establishes tert-butyl isocyanide as a useful convertible isonitrile
作者:Sankar K. Guchhait、Chetna Madaan
DOI:10.1039/c0ob00022a
日期:——
With the development of a novel microwave-assisted one-pot tandem de-tert-butylation of tert-butyl amine in an Ugi-type multicomponent reaction product, tert-butyl isocyanide as a useful convertible isonitrile has been explored for the first time affording access to molecular diversity of pharmaceutically-important polycyclic N-fused imidazo-heterocycles.
A facile I<sub>2</sub>-catalyzed synthesis of imidazo[1,2-a]pyridines via sp<sup>3</sup> C–H functionalization of azaarenes and evaluation of anticancer activity
作者:Geeta Sai Mani、Siddiq Pasha Shaik、Yellaiah Tangella、Swarna Bale、Chandraiah Godugu、Ahmed Kamal
DOI:10.1039/c7ob01384a
日期:——
A facile and efficient metal-free, one-pot, three component synthetic protocol has been developed for the synthesis of medicinally important substituted imidazo[1,2-a]pyridines via the iodine-catalysed oxidative amination of benzylic C–H bonds of azaarenes with 2-aminoazines and condensation with isocyanides. The presented methodology offers the advantages of wide substrate scope, moderate reaction
已经开发了一种简便有效的无金属,一锅,三组分合成方案,用于通过碘催化的氮杂芳烃苄基CH键的氧化胺化反应,合成具有医学上重要意义的取代的咪唑并[1,2- a ]吡啶。与2-氨基嗪并与异氰酸酯缩合。所提出的方法具有以下优点:底物范围宽,反应条件温和,环境友好,清洁和简单,具有较高原子经济性的方案,且产率较高。筛选合成的化合物在选定的人类癌细胞系中的抗癌活性。化合物4a,4b,4c,4i,7a,图7b和7m的IC 50值范围从4.88±0.28到14.55±0.74μM。