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8-Chloro-1-methyl-6-phenyl-4H-1,2,4-triazolo[4,3-a][1,4]benzodiazepine dihydrate


Book ID
118115914
Publisher
International Union of Crystallography
Year
1999
Tongue
English
Weight
332 KB
Volume
55
Category
Article
ISSN
0108-2701

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Synthesis of carbon-14 labeled 1,4-benzo
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## 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