## Abstract The triphenylphosphine hydrobromide‐catalyzed addition of a proton from ethanol to anhydrodihydroartemisinin (5) has been employed for the synthesis of 2 and 4 Use of 1.5 equivalents of EtO^2^H or EtO^3^H yielded 11‐[~3~H]‐β‐arteether as the major product.
Synthesis of 14-[2H]arteether, an experimental antmalarial drug
✍ Scribed by Yulin Hu; Herman Ziffer
- Book ID
- 102375790
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- French
- Weight
- 265 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A reaction sequence employing a fungus mediated oxidation of arteether, an experimental antimalarial drug, was used to introduce a hydroxyl group on C‐14. The hydroxyl group was replaced by a deuterium by preparing the tosylate and reductively cleaving it with sodium borodeuteride in DMSO. A reaction sequence to introduce a second label was also demonstrated it involved oxidation of the alcohol, with catalytic quantities of tetra‐n‐propylammonium perruthenate, followed by reduction with sodium borodeuteride to regenerate the alcohol. Use of both reactions sequences yield arteether containing two deuterium.
📜 SIMILAR VOLUMES
## Abstract The increasing prevalence of strains of __Plasmodium falciparum__ resistant to chloroquine and other antimalarial drugs, necessitates the need for developing novel antimalarial drugs with a potent pharmacological activity. Pyronaridine tetraphosphate (PNDP) is one such drug that is curr
## Abstract An efficient synthesis of [24‐^14^C]cholic acid from potassium [^14^C]cyanide has been developed. The key intermediate, 23‐chloro‐3α, 7α, 12α‐triformyloxynorcholane, was synthesized by degradation of triformyl protected cholic acid. Different degradation conditions were explored. The sy