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Proton and carbon-13 NMR and conformation in solution of some amorphanes (quinghaosu derivatives)

✍ Scribed by Anita J. Marsaioli; Fred Y. Fujiwara; Mary Ann Foglio; Nikolai Sharapin; Jin-Sheng Zhang

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
536 KB
Volume
32
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The total proton and carbon‐13 NMR assignments of quinghaosu I, II and V isolated from Artemisia annua cultivated in Brazil and of the synthetic derivatives quinghaosu alkene, ketone and epoxy are reported. The conformations and conformational equilibria of these compounds in solution were obtained from the spectral data and molecular mechanics calculations.

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