## Abstract Reaction of 7‐chloro‐1, 3‐dihydro‐5‐phenyl‐2H‐1, 4‐benzodiazepine ‐2‐thione (Ia) and 7‐chloro‐5‐(2‐chlorophenyl)‐1, 3‐dihydro‐2H, 1, 4‐benzodiazepine‐2‐thione (Ib) with hydrazine produces. respectively, 7‐chloro‐5‐phenyl‐3H‐1, 4‐benzo‐diazepin‐2‐yl hydrazin (IIa) and 7‐chloro‐5(2‐chlorp
Synthesis of carbon - 14 labeled 1-β -D-arabinofuranosylcytosine
✍ Scribed by Richard S. P. Hsi
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- French
- Weight
- 215 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
The s y t h e s i s of carbon-14 labeled l-ir-3-ar~,'lI-7f~r~c.q, Icdtosine and i t s hydrochloride salt i s described.
i n four steps from bariwn carbonats-'4C, are labeterl in ;ve Z-7 position of the pyrimidine ring.
📜 SIMILAR VOLUMES
## Abstract As asymmetric route to [^14^C]β‐hydroxycompactin 1 bearing the (__S__)‐2‐methyl‐[1‐^14^C]butanoate side chain has been developed. Methylation of [N‐[1‐^14^C]butyryl‐4‐(__S__)‐phenylmethyl‐2‐oxazolidinone 4 afforded a 95:5 mixture of diastereomeric [N‐(__S,R__)‐2‐methyl‐[1‐^14^C]butyryl]
This report describes the synthesis of carbon-14 labeled title compound from [14C]CS2. The substituted benzimidazole was labeled at the C-2 position of the benzimidazole moiety.
## Abstract Carbon‐14 labeled vigabatrin was synthesized in 5 steps from 5‐hydroxymethyl‐2‐pyrrolidone tosylate and NaCN‐[^14^C]. A key step involved reduction of the resulting nitrile in the presence of excess dimethylamine to give the dimethylamino‐ethyl 2‐pyrrolidone derivative in one step. This
The synthesis and purification of carbon-14 labeled capsaicin are described.
Clomiphene, 2-[4-(2-chloro-1,2-diphenylethenyl)phenoxy~-N.N- diethylethanamine, an antiestrogen, is a nonsteroidal triphenylethylene derivative. For the successful synthesis of carbon-14 labeled clomiphene it is essential to have a free radical inhibitor in the reaction medium.