## 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
Synthesis of carbon-14 labeled 1,4-benzodiazepines. III. 2-allyloxy-amino-7-chloro-5-(2-chlorophenyl)-3h-l,4-benzodiazepine-2-14C, 8-chloro-1-dimethylamino-methyl-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine-3a-14C, and 8-chloro-2,4-dihydro-2-methyl-6-phenyl-1H-s-triazolo[4,3-a] [1,4]benzodiazepin-l-one-3a-14
✍ Scribed by Richard S. P. Hsi; Tommy D. Johnson
- Publisher
- John Wiley and Sons
- Year
- 1976
- Tongue
- French
- Weight
- 281 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
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.
📜 SIMILAR VOLUMES
In order to more easily study the absorption, excretion, and distribution patterns of 7-chloro-1 -(cyclopropylmethyl)-5-phenyl-1 H-1,4-benzodiazepin-
## Abstract Two benzodiazepines, Diazepam and Flunitrazepam, labeled with carbon‐14 in position 5 of the diazepine ring have been synthesized. Use of a condensation between iminochlorides and ^14^C‐benzonitriles, followed by exhaustive methylation of the resulting quinazolines and hydrolyses is des
Tema~epam-2-'~C, 7-Chloro-1,3-ihydro-3-hydroxy-1 -methyl-5-phenyl-2H-1,4-benzodiazepin-2-one--"C, was prepared in a f ive-step synthesis. Chl~roacetic-l-~~C acid was converted to the acid chloride with thionyl chloride. The acid chloride was allowed to react with 2-methylamino-5-chloro-benzophenone
## 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