以下为句子列表：
英文: Five novel N-nitrophenyl urea compounds were synthesized in 46.4%-67.7% yields by One-Pot Strategy, and characterized by elemental analysis, IR as well as (superscript 1)H NMR spectroscopy.
中文: 摘要一釜合成法合成了五个新的N-硝基苯基脲类化合物，其产率分别为46.4%、71.4%、52.3%、55.4%和67.7%，并通过元素分析、红外光谱，核磁氢谱对产品进行了结构表徵。
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