Several 3-dehydro-(or ~-oxo-) ecdysteroids have been prepared by enzymatic and/or chemical means. Methods for their purification using various highperformance liquid chromatography systems are described. Proton and carbon nuclear magnetic resonance analyses show that 3-dehydroecdysteroids when disso
β¦ LIBER β¦
Synthesis and nuclear magnetic resonance study of 2-thiazolines
β Scribed by Eggleton, Gordon L.; Bushman, Daniel R.; Whitlock, David W.; Pugh, Darrell K.; Chance, Katherine L.
- Book ID
- 127143186
- Publisher
- American Chemical Society
- Year
- 1984
- Tongue
- English
- Weight
- 515 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0021-9568
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## Abstract A series of __m__β and __p__βsubstituted 1βphenyl, 1βbenzyl, 1βbenzoyl, and 1β(2βphenylethyl)pyrroles was prepared and their ^1^H and ^13^C nmr spectroscopic characteristics were examined. In general, good correlations were observed between the chemical shift values of the Ξ²ο£ΏH and the Ξ²