Synthesis of carbon-14 labeled 1,4-benzodiazepines. IV. Carbon-13 and carbon-14 labeled 8-chloro-1-(2-dimethylamino)ethyl-6-phenyl-4H-s-triazolo[4,3-a][1,4]-benzodiazepine tosylate
✍ Scribed by Richard S. P. Hsi; Wayne T. Stolle
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- French
- Weight
- 341 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Carbon‐13 and carbon‐14 labeled forms of the title compound have been prepared from the correspondingly labeled forms of 8‐chloro‐1‐methyl‐6‐phenyl‐4H‐s‐triazolo[4,3‐a][1,4]benzodiazepine (3)Alprazolam is the generic USAN name for this compound.
. A modified and more convenient version of the previously reported procedure for preparing 3 is described.
📜 SIMILAR VOLUMES
## Abstract A group of radioactive 1,4‐benzodiazepine derivatives have been synthesized from glycine‐1‐^14^C. The subject compounds are labeled with carbon‐14 in the 2‐position of the 1,4‐benzodiazepine ring system.
%Methyl -6-[3-( t r i f 1 uoromethyl ) phenyl 1-1,2,4-triazolo[4,3-b] p y r i d a z i n e ($), c u r r e n t l y being evaluated as a p o t e n t i a l anxiol y t i c agent was synthesized, l a b e l e d w i t h carbon-14 i n the 3p o s i t i o n o f t h e t r i a z o l o nucleus. i n 67% radiochemi
## Abstract 8‐Chloro‐6‐phenyl‐4H‐s‐triazolo [4,3‐a] [1,4] benzodiazepine (D‐40TA)‐1‐^14^C (V‐^14^C) was synthesized by the reaction of formic acid‐^14^C with 7‐chloro‐2‐hydrazino‐5‐phenyl‐3H‐1, 4‐benzodiazepine in the presence of N,N′‐carbonylbis (2‐methylimidazole). The overall radio‐chemical yiel
## Abstract Two benzodiazepine CCK antagonists __N__‐(2,3‐dihydro‐1‐[^14^C]methyl‐2‐oxo‐5‐phenyl‐1H 1,4‐benzodiazepin‐3‐yl)‐benzamide **2** and __N__‐(2,3‐dihydro‐1‐[^14^C]methyl‐2‐oxo‐5‐phenyl‐1H‐1,4‐benzodiazepin‐3‐yl)‐[^14^C]methyl‐benzamide **3** were synthesized in high yields through the reac
## Abstract The synthesis of ^3^H and ^14^C labeled __d__‐2‐ethyl‐2‐phenyl‐4‐(2‐piperidyl)‐1, 3‐dioxolane hydrochloride (Va and Vb respectively) is described. The optically pure α(‐)‐2‐(2‐piperidyl)ethane‐1,2‐diol hydrochloride (II), obtained by hydrolyzing α (+)‐2,2‐diphenyl‐4‐(2‐piperidyl)‐1,3‐di