## Abstract The solidβstate and solution conformations of (+)βchelidonine (1), a biologically active alkaloid, were determined by Xβray diffraction and ^1^HβNMR spectroscopy, XβRay diffraction analysis revealed a conformer with B/C β__anti__βtypeβ __cis__ conjunction, a halfβchair of ring B, and a
β¦ LIBER β¦
Conformations of erythro- and threo-dimethylacetylcholine iodides in the solid state
β Scribed by Eli Shefter; Phyllis Sackman; William F. Stephen Jr.; Edward E. Smissman
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 436 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0022-3549
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## Synopsis Cyclolinopeptide A, a cyclic nonapeptide isolated from linseed, has lately attracted large interest for i t s cytoprotective activity. The recent elucidation of its solid state structure has prompted us to undertake a detailed conformational analysis in solution. Room-temperature 'H-nm