The preparation and properties of acetyl, benzoyl, furoyl, and thenoyl choline perchlorates are described. It is shown that perchloric acid may be used to isolate choline esters from their reaction:mixtures. HE PREPARATION of a number of choline Testers which were desired for pharmacologic study in
Substituted Xanthines. I. Preparation and Properties of Some Choline Theophyllinates
โ Scribed by Duesel, B.F. ;Berman, H. ;Schachter, R.J.
- Publisher
- Elsevier
- Year
- 1954
- Weight
- 378 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0095-9553
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โฆ Synopsis
If one considers as favorable properties of an antispasmodic agent a high activity in the various intestinal preparations relative to activity on blood pressure, salivation or lacrimation, the 3-hydroxy piperidines generally appear more desirable than atropine. In the most active derivatives, JB-323 and JB-340, this is evidenced only in the rat, while for the remaining analogs it is, in general, apparent in each intraspecies comparison.
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## Preparation and some Properties of Synthetic Proustite Single Crystals Conditions for the preparation of proustite single crystals are reported. For selecting these conditions temperature gradients in the crystallisation zone and in the melt, the rate of moving of the crystallisation front, the