NMR STUDIES ON THE STRUCTURE OF A NEW DENUDATINE DITERPENOID-TYPE ALKALOID

Chinese Journal of Magnetic Resonance ›› 1999, Vol. 16 ›› Issue (6): 547-552.

Previous Articles Next Articles

NMR STUDIES ON THE STRUCTURE OF A NEW DENUDATINE DITERPENOID-TYPE ALKALOID

MIAO Zhenchun¹, ZHOU Yongxin², FENG Rui¹, LI Guangyu², HAO Zhigang³, LIU Jinghan³

1. Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850;
2. National Center of Biomedical Analysis, Academy of Military Medical Sciences, Beijing 100850;
3. Department of Phytochemistry, China Pharmaceutical Universityt Nanjing 210009

Received:1999-07-12 Revised:1999-09-02 Published:1999-12-05 Online:2018-01-13

Abstract

Abstract: A new C₂₀ diterpenoid alkaloid has been isolated from Aconitum barbatum var.hispidum Ledeb. Its structure has been elucidated as (1) using a combination of the selectivelong-range DEPT, homo-and heteronuclear 2D NMR techniques. The results showed thaiselective long-range DEPT NMR technique is very effective and convenient for the connection of ¹H NMR spin systems separated by quaternary carbons and heteroatoms and assignment of NMR spectra of this class of compounds. Compoud (1) is a epimer of the knowncompound lepenine (2) at C-11 and named as 11a-hydroxy lepenine.

Key words: Selective long-range DEPT, C₂₀ diterpenoid alkaloid, Structural determination, NMR

MIAO Zhenchun, ZHOU Yongxin, FENG Rui, LI Guangyu, HAO Zhigang, LIU Jinghan. NMR STUDIES ON THE STRUCTURE OF A NEW DENUDATINE DITERPENOID-TYPE ALKALOID[J]. Chinese Journal of Magnetic Resonance, 1999, 16(6): 547-552.

[1]	KOU Xinhui, ZHANG Yubing. Study on the Enantiomeric Recognition of Chiral Ureas Containing Amino Acid Units [J]. Chinese Journal of Magnetic Resonance, 2025, 42(3): 221-230.
[2]	DU Qunjie. Experimental Study on Accurate Determination of Shale Porosity by Nuclear Magnetic Resonance [J]. Chinese Journal of Magnetic Resonance, 2025, 42(3): 275-284.
[3]	JIANG Chaochao, YAO Shouquan, XU Juncheng, JIANG Yu. Design of the Broadband Magnetic Resonance Microcoil [J]. Chinese Journal of Magnetic Resonance, 2025, 42(3): 299-307.
[4]	LI Keyan, CHENG Xin, CHEN Junfei, CAO Li, HUANG Zhen, LIU Chaoyang. Development of Low-noise Preamplifier for Low-field NMR [J]. Chinese Journal of Magnetic Resonance, 2025, 42(3): 321-333.
[5]	LI Yujiang, ZHAO Wei, TAO Le, LU Bohua, ZHENG Guo, ZHANG Haiyan, GUO Xiaohe, ZHAO Tianzeng. NMR Data Analysis of Acarbose [J]. Chinese Journal of Magnetic Resonance, 2025, 42(2): 184-194.
[6]	ZHANG Jiayu, NIE Wenbo, TU Zhao, ZHENG Limin, WANG Yan, YANG Chunsheng. Three-Dimensional Structures of 3/4/5-O-feruloylquinic Acids by NMR Spectroscopy and Quantum Chemistry Calculation [J]. Chinese Journal of Magnetic Resonance, 2025, 42(1): 47-55.
[7]	SHEN Xueyuan, WANG Ruichen, QI Guodong, XU Jun, DENG Feng. Design of in situ Solid-State NMR Rotor Inserts and Their Application to Catalytic Reactions [J]. Chinese Journal of Magnetic Resonance, 2025, 42(1): 13-21.
[8]	SHEN Zhiqiang, DENG Yabo, YANG Peiju, HU Xiaoxue, HUANG Xiaojuan, XU Chuanzhi, SONG Huanling. Design and Application of an in situ NMR Device for Light-Induced Reaction Systems [J]. Chinese Journal of Magnetic Resonance, 2025, 42(1): 22-33.
[9]	LIU Hongbing, LIU Huili, LUO Liting, SUN Lijuan, CHEN Lei. Identification and Structural Characterization of an Unknown Trace Degradation Impurity in Cabazitaxel Injection by LC-DAD-SPE-NMR/MS [J]. Chinese Journal of Magnetic Resonance, 2025, 42(1): 34-46.
[10]	LI Mingdao, YAO Shouquan, XU Juncheng, LV Xinglong, HE Fengcheng, JIANG Yu. Design of the Handheld NMR Console [J]. Chinese Journal of Magnetic Resonance, 2024, 41(3): 257-265.
[11]	WANG Xingle, SHAO Zhengze, DONG Hongchun, WEI Daxiu, CHEN Qun, YAO Yefeng. Studies on the ¹H NMR Spectral Features of Hydrogen Molecules in the Interstices of SiO₂ Particles [J]. Chinese Journal of Magnetic Resonance, 2024, 41(3): 315-321.
[12]	YANG Yu, CHEN Bo, WU Liubin, LIN Enping, HUANG Yuqing, CHEN Zhong. Spectrum Reconstruction for Laplace NMR: From Handcraft Regularization to Deep Learning [J]. Chinese Journal of Magnetic Resonance, 2024, 41(2): 191-208.
[13]	MA Yingying, ZHANG Gong, LIAO Zhongshu. A Method for Improving the Measurement Accuracy of Nuclear Magnetic Resonance Fast Relaxation Signal [J]. Chinese Journal of Magnetic Resonance, 2024, 41(2): 162-172.
[14]	ZHU Xiaofeng, ZHAO Zhihong, TAN Rui, ZHOU Long, WANG Yichuan, LIU Wenjing, ZHANG Minghui, LIU Huabing. Water Migration Characteristics of Pinus Sylvestris During the Drying Process Studied by Single-sided Nuclear Magnetic Resonance [J]. Chinese Journal of Magnetic Resonance, 2024, 41(2): 173-183.
[15]	WANG Ziwen, XIN Jiaxiang, WEI Daxiu, YAO Yefeng. Preparation Efficiency of Singlet States in Multi-spin Systems with Different Coupling Configurations [J]. Chinese Journal of Magnetic Resonance, 2024, 41(1): 67-76.

NMR STUDIES ON THE STRUCTURE OF A NEW DENUDATINE DITERPENOID-TYPE ALKALOID

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments