𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis of carbon-14 labeled 1,4-benzodiazepnies. II.(1) diazepam-14C, demethyldiazepam-14C, and ketazolam-14C

✍ Scribed by Richard S. P. Hsi


Publisher
John Wiley and Sons
Year
1974
Tongue
French
Weight
287 KB
Volume
10
Category
Article
ISSN
0022-2135

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

Diazepam‐^14^C and demethyldiazepam‐^14^C are synthesized from glycine‐1‐^14^C. Addition of diketene to diazepam‐^14^C leads to ketazolam‐^14^C. The reaction conditions for the formation of ketazolam from diazepam is studied using high‐pressure liquid chromatography in conjunction with radioactivity determinations.


📜 SIMILAR VOLUMES


Synthesis of carbon-14 labeled [1-14C]-,
✍ W. Augustyniak; R. Kański; M. Kańska 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 French ⚖ 96 KB

## Abstract Two labeled isotopomers of L‐tyrosine, L‐Tyr, have been synthesized using specific properties of the enzymes phenylanine ammonia lyase, PAL, and L‐phenylalanine hydroxylase. In an intermediate step [1‐^14^C]‐, and [2‐^14^C]‐L‐phenylalanine, L‐Phe, have been obtained from [1‐^14^C]‐, and

Synthesis and characterization of carbon
✍ C. E. Blackburn; A. J. Glazko 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 French ⚖ 206 KB

## SYNTtIESIS AHD CHARACTERIZATION OF CARBON-14 LABELLED 4,4'-DIAMINODIPHENYL SULFONE (DAPSONE-l4C; D 3 S -1 4 C > , C.E. B l a c k b u r n and A.J. G l a z k o . D e p a r t m e n t o f P h a r m a c o l o g y . D i v i s i o n of S c i e n t i f i c and M e d i c a l Affairs. P a r k e -D a v i

Synthesis of carbon-14 labelled acetamin
✍ S. Stavchansky; P. Wu 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 French ⚖ 120 KB

## Abstract A simple and convenient method for the condensation of paminophenol (I) with ^14^C‐acetic anhydride (II) yields up to 76% of ^14^C‐labelled 4‐hydroxyphenylacetamide (carbonyl‐^14^C) (III). Typical synthesis time is 60 minutes. Radioactive yield is 51%, and specific activity is 0.22 μCi/

Synthesis of 14C-labelled isotope-isomer
✍ Ioana Bally; Eugenia Gǎrd; Elieabeta Ciornei; Maria Biltz; A. T. Balaban 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 French ⚖ 301 KB

## Abstract The synthesis of n‐heptane‐1‐^14^C is described. starting from ^14^CH~3~I via (^14^CH~3~) ~2~Cd and caproyl chloride; for obtaining n‐heptane‐2‐^14^C, n‐pentyl bromide is converted into the Grignard reagent, carbonated with ^14^CO~2~, and the resulted coproic acid is converted into its

Preparation of carbon-14 labelled amprop
✍ Harry R. Hudson; Fatima Ismail 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 French ⚖ 71 KB

## Abstract 1‐[^14^C]‐__α__‐Aminopropanephosphonic acid, with a specific activity of 1.736 µCi mg^−1^, has been prepared from 1‐[^14^C]‐propanal, triphenyl phosphite, and benzyl carbamate by interaction in toluene in the presence of boron trifluoride‐etherate, followed by hydrolysis. The product wa

Synthesis of carbon-14 labelled antimicr
✍ Akira Yoshitake; Takeshi Kamada; Hideyuki Gomi; Iwao Nakatsuka 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 French ⚖ 284 KB

## Abstract Sodium 6‐[ (R)‐2‐(4‐hydroxy‐1,5‐naphthyridine‐4‐^14^C‐3‐carboxy‐^14^C‐amido)‐2‐phenylacetamido]penicillanate (apalcillin‐^14^C sodium) (**1**) was synthesized for use in metabolic studies. Reaction of ethyl malonate‐1‐^14^C (**2**) with ethyl orthoformate in the presence of zinc chlorid