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NMR assignments and conformational analysis of yuanhuacin

✍ Scribed by Bing-Nan Zhou; Liang Xue; Long-Ze Lin; Lee-Juian Lin; Michael E. Johnson; Geoffrey A. Cordell

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
504 KB
Volume
31
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Stereochemical assignments of yuanhuacin were performed through two‐dimensional COSY, ROESY, ^1^H and ^13^C shift correlation spectroscopy (HETCOR and FLOCK), and ambiguous assignments were resolved through molecular modeling comparisons. This combination of techniques is applicable for the assignment of ^1^H and ^13^C chemical shifts of polycyclic compounds containing high percentages of quaternary carbons.

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