## Abstract A method for preparing tritium‐labelled ryanodine is described. The alkaloid was first brominated, and the bromoryanodines were separated from the reaction mixture by thin layer chromatography; NMR analysis at this stage showed substitution of pyrrole protons by bromine. Bromoryanodine
Separation and formation of ryanodine from dehydroryanodine. Preparation of tritium-labeled ryanodine
✍ Scribed by John L. Sutko; Lorri J. Thompson; Robert G. Schlatterer; Frank A. Lattanzio; Allan S. Fairhurst; Carlton Campbell; Stephen F. Martin; Pierre Deslongehamps; Luc Ruest; David R. Taylor
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- French
- Weight
- 321 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
The commercially available preparation of the naturally occurring diterpene ester ryanodine contains several compounds in addition to ryanodine. In the present study these compounds were separated and purified using high performance liquid chromatography. The two major components, ryanodine and dehydroryanodine represented 90% of the material present. A method for the efficient reduction of dehydroryanodine to ryanodine was developed and used to produce ryanodine having tritium atoms at positions 19 and 20 and a specific activity of 60.8 Cifmmole.
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