Abstract

AbstractIn order to search for novel antitumor and antiviral agents with high activity and low toxicity, a series of 1‐ethoxycarbonylmethyl‐3‐ethyl‐1,2,3,4‐tetrahydro‐4‐oxo‐1,3,2‐benzodiazaphosphorin‐2‐carboxamide 2‐oxides containing α‐aminophosphonate groups have been designed and synthesized by a convenient one‐pot procedure in good yields. The structures of products were confirmed by 1H NMR, 31P NMR, IR spectra, and elemental analyses. The bioassay results showed that some of them possess excellent anti–tobacco mosaic virus activities and exhibit higher inhibitory effects compared with that of the contrast drug 2,4‐dioxyhexahydro‐1,3,5‐triazine. © 2001 John Wiley & Sons, Inc. Heteroatom Chem 12:97–101, 2001

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