Synthesis and Heterocyclizations of 3,4-Dihydroquinazolin-2-yl Guanidine in the Search of New Anticancer Agents
作者:Wai Keung Chui、Anton V. Dolzhenko、Anna V. Dolzhenko、Mi Chelle Foo、Bee Jen Tan、Gigi Ngar Chee Chiu
DOI:10.3987/com-09-11672
日期:——
The cyclocondensations of 3,4-dihydroquinazolin-2-yl guanidine with a variety of electrophilic reagents viz. aldehydes, ketones, triethyl orthoformate, diethyl ethoxymethylenemalonate, carbon disulfide and trichloroacetonitrile were found to afford 1,3,5-triazino[2,1-b]quinazolines. However, some unexpected reactions were also observed. The structural properties such as tautomerism and hinderance to conformational rotation were also investigated. The results of biological testing suggested that the 1,3,5-triazino[2,1-b]quinazoline nucleus could be a new promising scaffold for the development of potential anticancer agents.