Stereoselective synthesis and biological activities of diethyl (<i>E</i>)-{[4-cyano-5-[[(disubstitutedamino)methylene]amino]-3-(methylthio)- 1<i>H</i>-pyrazol-1-yl]substituited phenylmethyl}phosphonates
作者:Lin-Xia Xiao、De-Qing Shi
DOI:10.1002/jhet.97
日期:2009.5
Diethyl [5-amino-4-cyano-3-(methylthio)-1H-pyrazol-1-yl]substitutedphenylmethyl}phosphonates were efficiently synthesized via the condensation of [(1-hydrazino)substitutedphenylmethyl]phosphonates with 2-[bis(methylthio)methylene]malononitrile . reacted with triethyl orthoformate to afford diethyl (E)-[4-cyano-5-[(ethoxymethylene)amino]-3-(methylthio)-1H-pyrazol-1-yl]substitutedphenylmethyl}phosphonates