## Abstract The synthesis of 6‐(D‐α‐aminophenylacetamido‐1‐^14^C)‐ penicillanic acid (V) is described. Benzaldehyde (I) was converted with sodium cyanide‐^14^C and ammonium chloride into D, L‐α‐aminophenylacetic acid‐1‐^14^C (II), from which the D‐form was separated with D‐camphorsulfonic acid. The
Synthesis of 6-/N,N-1′,6′-hexyleneformamidine-14C/-penicillanic acid
✍ Scribed by Janina Zupanska; Krystina Szymoniak; Irena Busko-Oszczapowicz; Jerzy Cieslak
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- French
- Weight
- 152 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
Synthesis of 6‐/N,N‐1′, 6′‐hexyleneformamidine‐^14^C/penicillanic acid /VII/ was carried out. N‐formyl‐^14^C‐hexamethyleneimine /II/ was obtained from formic‐14C acid and hexamethyleneimine /I/. The product was chlorinated with oxalyl chloride. The obtained N,N‐1, 6‐hexylenechloroformimino‐^14^C chloride /III/ was condensed with trimethylsilyl ester of N‐trimethylsilyl‐6‐amino penicillanic acid /V/. The final product /VII/ was separated with a radiochemical yield of 46.5%.
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## Abstract 6‐n‐Propyl‐2‐thiouracil‐6−^14^C was prepared from sodium butyrate‐1−^14^C, with a radiochemical yield of 34%. Butyryl chloride‐1−^14^C was prepared from butyric acid‐1−^14^C and condensed with sodio ethylacetoacetate to yield ethyl β‐oxohexanoate‐β−^14^C. The β‐keto ester was condensed
## Abstract The syntheses of disodium 6‐(2‐phenyl‐2‐sulfoacetamido‐1‐^14^C) peniaillanate (IV) and 6‐(2‐isobutyl‐β,γ‐ ^3^H~2~‐sulfo‐2‐phenyl‐acetamido‐1‐^14^C) penicillanic acid (XII) are described. The optically active D(‐)‐IV was obtained by the fractional crystallization of diastereoisomeric mix
## Abstract The synthesis of the N‐(4‐iodo‐2,6‐diethylphenylcarbamoylmethyl) iminodiacetic acid labelled with ^14^C at the carbonyl carbon atom which was required for metabolism studies is described. The complex formation between the title product and Tc‐99m is also presented.
## Abstract A semimicro synthesis was devised to prepare pure 1,2,6,7‐^14^C‐chelidonic acid of high specific activity from 1,2‐^14^C‐oxalic acid.
## Abstract [^14^C]‐Tolrestat(N‐[[5‐(trifluoromethyl)‐6‐methoxy‐1‐naphthalenyl]‐[^14^C]‐thioxomethyl]‐N‐methylglycine; [14C]AY‐27, 773), a new aldose reductase inhibitor, was prepared by incorporating [14C]carbon dioxide. The intermediate, 6‐methoxy‐5‐trifluoromethyl‐[1–14C]‐naphthoic acid, prepare