## Abstract p‐Toluic acid‐ring‐^14^C was synthesized by the Friedel‐Crafts p‐carbamylation of toluene‐ring‐^14^C with N,N‐disubstituted carbamyl chloride and subsequent hydrolysis. The radiochemical yield was 61%. An attempt was made to apply this method for the synthesis of benzoic acid‐ring‐^14^C
Synthesis of 14C-labelled 4-hydroperoxyisophosphamide, an effective antitumor agent
✍ Scribed by T. Nagasaki; Y. Katsuyama; H. Minato
- Publisher
- John Wiley and Sons
- Year
- 1976
- Tongue
- French
- Weight
- 193 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
4‐Hydroperoxyisophosphamide (II), an effective antitumor agent has been labelled with carbon‐14. The carbon‐14 label was incorporated into the C‐6 position of the molecule to give (VII). The overall radiochemical yield was 4.4% based on barium carbonate‐^14^C. The labelled compound obtained was used for absorption and metabolism studies.
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## Abstract The ring‐ and side‐chain‐^14^C‐labeled DL‐4,4′‐propylenedi‐2,6‐piperazinediones (I) were synthesized from chloroacetic acid‐1‐^14^C in two steps and from DL‐analine‐1‐^14^C in six steps, respectively. The radiochemical yield for the ring labeling was 24.5%; for the side‐chain labeling i
## 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
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## 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/
## 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