## T o l u e n e -p -s u l p h o n a m i d e was c o n d e n s e d w i t h ( 14C)CH3 I t o g i v e l a b e ll e d NN-dimethyltoluene-p-sulphonamide. l 4 C -l a b e 1 l e d d i m e t h y l a m i n e was r e l e a s e d f r o m t h e d i m e t h y l a m i d e b y the a c t i o n o f 48% HBr and NaOH,
Synthese de la pentamethylmelamine (noyau 14C-4,6), un nouvel agent antitumoral
✍ Scribed by Do-cao-thang; Nguyen-hoang-nam; H. Hoellinger; L. Pichat
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- French
- Weight
- 234 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
(ring‐4,6‐^14^C) Pentamethylmelamine (^14^C‐PMM), a new antitumor agent, was prepared from barium (^14^C) carbonate by a 6 step synthesis. (^14^CN) Dimethylcyanamide, prepared from sodium (^14^C) cyanide with 71% yield and treated with phosgene in the presence of hydrogen chloride, was cyclized to (ring‐4,6‐^14^C)‐2‐chloro‐4,6‐bis (dimethylamino)‐s‐triazine. The latter was purified by silicagel low pressure liquid chromatography (15% yield based on nitrile) and condensed with monomethylamine to give ^14^C‐PMM. After purification ^14^C‐PMM was obtained with 91% yield, specific activity = 38 mCi/mMole. The mechanism of the reaction of nitrile with phosgene was discussed.
📜 SIMILAR VOLUMES
## Abstract L'hexaméthylmélamine (noyau) ^14^C‐2‐4‐6 (HMM ^14^C), un nouvel agent antitumoral, a été synthétisée à partir de l'urée ^14^C en 2 stades. L'urée ^14^C est cyclisée dans l'o‐dichlorobenzène en acide cyanurique ^14^C‐2‐4‐6, purifié par chromatographie sur colonne d'échangeur d'ions Sépha
MEVALONOLACTONE (14c,5) e t ( RS) MEVALONOLACTONE ( I 4 c -5 ) . Bernard ROUSSEAU, Jean-Pierre BEAUCOURT, Louis PICHAT\* S e r v i c e des Molecules Marquees -CEN-SACLAY -F. 91191 GIF-SUR-YVETTE Cedex Three new routes t 3 (RS) mvalonolactone s u i t a b l e for the double labeling w i t h i s o t
## Abstract Benzoyl chloride‐7^14^C is condensed with tris(trimethylsilyl) 1‐lithio‐1,1,2 propane tricarboxylate, which after hydrolysis gives rise to a 66% yield of 2‐methyl‐3‐(benzoyl‐7‐^14^C) propionic acid. After cyclisation with hydrazine, followed by treatment with bromine in acetic acid, 3‐h
The ^14^C labelling of three compounds : HI‐6, TMB‐4 and pyrimidoxime is described from ^14^C‐formic acid, sodium salt. The compounds were prepared by lithiation and formylation with N‐methyl (^14^C)‐formanilide followed by introduction of the hydroxylamine moieties and alkylation of the pyridine. R