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中文摘要：
采用^15N-^1H的2DHSQC、HMBC实验方法，测定了天然丰度的N-磷酰化氨基酸样品在溶液中的^15N化学位移δN及偶合常数JN-P，JN-H。实验表明：对于^15N天然丰度样品，这是一种快速有效的实验方法。研究发现：N-磷酰化后的氨基酸，其虱以及与氮原子直接相连的质子^1H的化学位移均发生十分明显的高场位移，而偶合常数^1JN-P，^1JN-H的变化与化合物构型相关联。
英文摘要：
Natural abundance N-phosphoryl amino acids were studied by ^15N NMR spectroscopy.^15N NMR chemical shifts and coupling constants were determined by ^15N-^1H heteronuclear HSQC and HMBC techniques. The stereosensitive ^1J（^15N-^31P） and ^1J（^15N-^1H） coupling constants were used to analyze the geometry of nitrogen atoms in these compounds. The structural and ^15N NMR spectroscopic characteristics of N-phos-phoryl amino acids were discussed.
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