## 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 obta
Synthesis of 14C-labelled antitumor agents. II. A facile synthesis of ring-14C-labelled para-toluic acid as an intermediate for synthesis of ring-14C-labelled procarbazine
✍ Scribed by Ying-Tsung Lin; Robert J. Dummel; Morris A. Leaffer; Masato Tanabe
- Publisher
- John Wiley and Sons
- Year
- 1976
- Tongue
- French
- Weight
- 156 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
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 from benzene‐ring‐^14^C.
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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 A synthetic procedure for C‐14‐labeled N‐methyl‐N‐nitrosoaniline is presented. Separate labeling of the methyl and phenyl side chains was achieved by using C‐14‐labeled methyl iodide and aniline, respectively. The overall yield of the four reactions was 62% and the final products were s