## Abstract A synthetic procedure for C‐14‐labeled N‐methyl‐N‐nitrosoaniline is presented. Separate labeling of the methyl and phenyl side chains was achieved by using C‐14‐labeled methyl iodide and aniline, respectively. The overall yield of the four reactions was 62% and the final products were s
The synthesis of 14C-labeled N-carbonylbenzyloxyphenylalanine methylorthoester
✍ Scribed by Curtis R. Partington; Mathias P. Mertes
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- French
- Weight
- 258 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
Phenylpropionitrile‐1‐^14^C was prepared by the reaction of potassium cyanide‐^14^C with phenethyl chloride. Conversion of the nitrile to methylphenyl‐propioimidate‐1‐^14^C hydrochloride, chlorination with Cl~2~ in NaOCl to produce methyl N‐chlorophenylpropioimidate‐1‐^14^ C, followed by treatment with sodium methoxide produced phenylalanine methylorthoester‐1‐^14^C. Treatment of the amine with n‐butyllithium followed by addition of benzylchloroformate produced N‐carbonylbenzyloxy‐phenylalanine methylorthoester‐1‐^14^C.
📜 SIMILAR VOLUMES
## Abstract ^14^C‐Labeled E4010, [4‐(3‐chloro‐4‐methoxybenzyl)amino‐1‐(4‐hydroxy) ‐piperidino]‐6‐[4‐^14^C]phthalazinecarbonitrile monohydrochloride was synthesized for drug metabolism and pharmacokinetic studies using [1‐chloro‐4‐(3‐chloro‐4‐methoxybenzyl)amino]‐6‐[4‐^14^C]phthalazinecarbonitrile a
A new procedure has been developed for the synthesis of I4C-labeled glutethimide with an improved yield from K14CN. In this procedure benzyl cyanide prepared from benzyl chloride and K14CN was almost quantitatively monoethylated by an ion-pair extraction method using 50% excess of tetrabutylammonium
Ring-labeled bunolol, df -5 -[3 -(tertbutylamino) -2-hydroxypropoxyJ-3,Cdihydro-l(2ti)-naphthalenone-l-~4C, was synthesized in several steps by initially allowing 3-phenylpropylmag-lJ4C acid was cyclized to a-tetralone-lJ4C. The ring was then oxidized and opened to 4-(2-hydroxyphenyl)butyri~l-~~C ac
N-Nitrosobis(2-hydroxypropy1)amine (BHP potent pancreatic carcinogen in the Syrian golden hamster, was synthesized with the 14C-label in the 1-position of one of the propyl groups. Starting with lactic-l-14C acid, RHP was prepared utilizing a four-step reaction sequence, with an overall yield of 45%
## Abstract N‐Nitrosobis (2‐oxopropyl) amine (BOP), a potent and selective pancreatic carcinogen in the Syrian golden hamster was synthesized with a ^14^C label in the alpha carbon. Oxidation of 2‐hydroxypropyl‐2‐hydroxypropyl‐1‐^14^C‐amine followed by nitrosation with sodium nitrite and hydrochlor