H-1 and C-13 NMR assignments of eight nitrogen containing compounds from Nocardia alba sp.nov (YIM 30243(T))
文献类型： 外文期刊
作者： Ding, Zhang-Gui 1 ; Zhao, Jiang-Yuan 1 ; Yang, Pei-Wen 1 ; Li, Ming-Gang 1 ; Huang, Rong 2 ; Cui, Xiao-Long 1 ; Wen, M 1 ;
作者机构： 1.Yunnan Univ, Yunnan Inst Microbiol, Minist Educ, Key Lab Microbial Resources, Kunming 650091, Yunnan, Peoples R China
2.Yunnan Univ, Minist Educ, Key Lab Med Chem Nat Resources, Kunming 650091, Yunnan, Peoples R China
3.Yunnan Acad Agr Sci, Inst Agr Environm & Resource, Kunming 650205, Yunnan, Peoples R China
关键词： H-1 NMR;C-13 NMR;2D NMR;nocarsin A;lumichrome;cyclopeptides;Nocardia alba sp.nov
期刊名称：MAGNETIC RESONANCE IN CHEMISTRY （ 影响因子：2.447； 五年影响因子：1.925 ）
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收录情况： SCI
摘要： An unprecedented new natural product named nocarsin A (1), 5H-4a,6,7a-triazacyclopenta[cd]indene-5,7(6H)-dione (1), together with seven known compounds lumichrome (2), cyclo (L-Leu-L-Tyr) (3), cyclo (L-Ala-L-IIe) (4), cyclo (L-Ala-L-Leu) (5), cyclo (L-Val-L-Ala) (6),5-methyluracil (7) and uracil (8), was isolated from Nocardia alba sp.nov (YIM 30243(T)) which was isolated from a soil sample collected from Yunnan Province, P. R. China. NMR techniques including COSY, HSQC, ROESY, and HMBC were used to elucidate the structures of these compounds. We report the unambiguous assignments of the H-1 and C-13 NMR spectra of the new compound nocarsin A (1).
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