Heterocyclic studies. Part XIII. Ready ring cleavage of some pyrimidine derivatives to give highly substituted ethylenes
作者:Jim Clark、I. Gelling、I. W. Southon、M. S. Morton
DOI:10.1039/j39700000494
日期:——
Treatment of 6-chloro-4-dialkylamino-5-nitropyrimidines (Ia–d) under acidic conditions resulted in ringcleavage and formation of 3-amino-3-dialkylamino-2-nitroacrylonitriles (IIIa–d). Similar treatment of 4-amino- or 4-alkylamino-6-chloro-5-nitropyrimidines also gave acrylonitriles (IIIe–i) but 4-amino- or 4-alkylamino-5-nitropyrimidin-6(1H)-ones (IIe–i) were formed at the same time.
Synthesis of 6,8,9 poly-substituted purine analogue libraries as pro-apoptotic inducers of human leukemic lymphocytes and DAPK-1 inhibitors
作者:Maria J. Pineda de las Infantas、Sara Torres-Rusillo、Juan Diego Unciti-Broceta、Pablo Fernandez-Rubio、Maria Angelica Luque-Gonzalez、Miguel A. Gallo、Asier Unciti-Broceta、Ignacio J. Molina、Juan J. Diaz-Mochon