Investigating Alkylated Prodigiosenes and Their Cu(II)‐Dependent Biological Activity: Interactions with DNA, Antimicrobial and Photoinduced Anticancer Activity
synthetic analogs of the natural product prodigiosin, exhibit self-activated DNA cleavage in the presence of Cu(II). In unprecedented Cu(II)-dependent cytotoxicity studies, we investigated the role of different alkyl chains at the C ring. Cytotoxicity was selective towards cancer cells and could be increased by irradiation. Some prodigiosenes also showed high antibacterial activity.
Lithiation of the 6-dimethylamino-1-azafulvene dimer. A versatile synthesis of 5-substituted pyrrole-2 carboxaldehydes.
作者:Joseph M. Muchowski、Petr Hess
DOI:10.1016/s0040-4039(00)80207-5
日期:1988.1
Metalation of the dimer of 6-dimethylamino-1-azafulvene, with t-butyllithium at −15°C, gave the 3,8-dilithio derivative , which after reaction with diverse electrophilic reagents and hydrolysis, provided a wide variety of 5-substituted pyrrole-2-carboxaldehydes .