oxamoyl

例句：

1. 1. This compound is a key intermediate in the synthesis of many pharmaceuticals.
   这种化合物是合成许多药物的关键中间体。
2. 2. The amino acid sequence was determined by mass spectrometry.
   通过质谱法确定了氨基酸序列。
3. 3. The oxamoyl group has been found to be essential for the activity of the enzyme.
   发现氨基甲酸酯基对酶的活性至关重要。