The 1H and 13C NMR Chemical Shift Assignments for Thirteen Bufadienolides Isolated from the Traditional Chinese Drug Ch'an Su

2001 ◽  
Vol 66 (12) ◽  
pp. 1841-1848 ◽  
Author(s):  
Yoshiaki Kamano ◽  
Toshihiko Nogawa ◽  
Ayano Yamashita ◽  
George R. Pettit
Keyword(s):  
Chemical Shift ◽  
13C Nmr ◽  
Nmr Spectra ◽  
2D Nmr ◽  
Chinese Drug ◽  
Chemical Shift Assignments ◽  
1H And 13C Nmr ◽  
Nmr Chemical Shift Assignments ◽  
2D Nmr Spectra ◽  
C Nmr

The 1H and 13C NMR spectra of thirteen natural bufadienolides, which were isolated from the Chinese drug Ch'an Su, were assigned using a combination of 2D NMR spectra that included 1H-1H COSY, NOESY, HMQC, and HMBC techniques.

13C NMR Chemical Shift Assignments of Alkyl Chains of Histamine Analogous ω-Aminoalkylheterocycles and Bicyclic Derivatives

1994 ◽  
Vol 59 (5) ◽  
pp. 1100-1104 ◽  
Author(s):  
Martin Pohl ◽  
Wolf-Dieter Bloedorn ◽  
Clemens Mügge ◽  
Jürgen Liebscher
Keyword(s):  
Chemical Shift ◽  
13C Nmr ◽  
Chemical Shift Assignments ◽  
Nmr Chemical Shift ◽  
Alkyl Chains ◽  
Nmr Chemical Shift Assignments ◽  
C Nmr

ω-Aminoalkylheterocycles and aromatics as well as bicyclic azolodiazepine derivatives were investigated by means of CH-COSY and INADEQUATE experiments. The 13C NMR shifts of all carbon atoms of the aminopropyl and aminobutyl moieties could be assigned. The benzylic position of the ω-aminopropyl moieties appears most upfield rather than more downfield like erroneously reported in the literature.

scholarly journals 1H and 13C NMR Analysis of the neo-Clerodane Diterpenoid Scutecyprin

2014 ◽  
Vol 9 (8) ◽  
pp. 1934578X1400900
Author(s):  
Plamen N. Penchev ◽  
Stefka R. Nachkova ◽  
Tonka A. Vasileva ◽  
Petko I. Bozov
Keyword(s):  
13C Nmr ◽  
Nmr Spectra ◽  
2D Nmr ◽  
Nmr Analysis ◽  
1H And 13C Nmr ◽  
13C Nmr Analysis ◽  
Clerodane Diterpenoid ◽  
C Nmr

The 1H and 13C NMR spectra of the neo-clerodane diterpenoid scutecyprin were completely assigned by using a combination of 2D NMR experiments, which included 1H-1H COSY, HSQC, HMBC and NOESY sequences.

scholarly journals Other compounds isolated from Simira glaziovii and the ¹H and 13C NMR chemical shift assignments of new 1-epi-castanopsol

Química Nova ◽  
2012 ◽  
Vol 35 (11) ◽  
pp. 2202-2204 ◽  
Author(s):  
Marcelo F. de Araújo ◽  
Raimundo Braz-Filho ◽  
Mário G. de Carvalho ◽  
Ivo J. Curcino Vieira
Keyword(s):  
Chemical Shift ◽  
13C Nmr ◽  
Chemical Shift Assignments ◽  
Nmr Chemical Shift ◽  
Nmr Chemical Shift Assignments
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