Beretta Giangiacomo, Vistoli Giulio, Caneva Enrico, Anselmi Cecila, Maffei Facino Roberto
Department of Pharmaceutical Sciences Pietro Pratesi, University of Milan, via Mangiagalli 25, 20133 Milan, Italy.
Magn Reson Chem. 2009 May;47(5):456-9. doi: 10.1002/mrc.2407.
The complete (1)H, (13)C and (15)N NMR spectral assignments of two new alkaloids isolated from chestnut honey and structurally related to kynurenic acid have been made using 1-D and 2-D NMR techniques, including COSY, HMQC and HMBC experiments. The new compounds have been identified as 3-(2'-pyrrolidinyl)-kynurenic acid and its gamma-lactam derivative.
利用一维和二维核磁共振技术，包括COSY、HMQC和HMBC实验，对从栗花蜜中分离出的两种与犬尿烯酸结构相关的新生物碱进行了完整的氢-1、碳-13和氮-15核磁共振光谱归属。新化合物已被鉴定为3-(2'-吡咯烷基)-犬尿烯酸及其γ-内酰胺衍生物。
