## Abstract Racemic norepinephrine was synthesized with three deuterium atoms on the alkyl chain. The deuteration was accomplished by D/H exchange on the intermediate, dibenzylaminodihydroxyacetophenone, followed by reduction of the keto moiety and cleavage of the benzyl‐protecting groups with deut
Syntheses of three stable isotope-labeled ethylcyclopropanes
✍ Scribed by John E. Baldwin; Edward J. O'Neil
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- French
- Weight
- 182 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Three stable isotope‐labeled ethylcyclopropanes have been synthesized in preparation for a mechanistic study of its fragmentation to methane and butadiene. Two tactical innovations have been used to deal with practical synthetic challenges posed by the very limited solubility of methylmagnesium iodide in tetrahydrofuran and the high volatility and high tendency to form aerosols characteristic of ethylcyclopropane. Copyright © 2009 John Wiley & Sons, Ltd.
📜 SIMILAR VOLUMES
## Abstract Studies towards the synthesis of stable isotope labeled PNU‐95666, a CNS agent currently under development for the treatment of Parkinson's disease, is described. The synthesis of non‐labeled PNU‐95666 starts using a large excess of methylamine. While the non‐labeled methylamine is inex
Stable isotope labeled 3-acetyldeoxynivalenol (3-AcDON) was synthesized in excellent yield from deoxynivalenol as starting material. This is the first synthesis of a stable isotope labeled type-B trichothecene suitable as internal standard for HPLC-MS/MS or GC-MS analysis of trichothecene mycotoxins
## Abstract Stable isotopically labelled (SIL) versions of Glimepiride **1** (10 steps, 11% overall yield), a blood glucose lowering drug, and Melagatran **13** (9 steps, 17% overall yield), an anticoagulant with similar uses to warfarin, were synthesized as internal standards for LCMS assays. Modi
## Abstract Stable isotope‐labeled 2‐methylaminoimidazole (M+7 and M+6) was required as an intermediate in the synthesis of mass labeled drug candidates. These two isotopomers were synthesized with total yields of 24 and 36%, respectively. Labeled 2‐aminoimidazole (M+4) was prepared from labeled is