## Abstract Sodium 6‐isopropyl‐3‐[4‐(p‐chlorobenzenesulfonylamino)‐butyl]azulene‐l‐sulfonate (KT2‐962) 1, which has been found to be a potent and selective thromboxaneA~2~ receptor antagonist, was synthesized in ^14^C‐labelled form by using potassium [^14^C]‐cyanide. ^14^C‐labelled 1 with a specif
Synthesis of sodium 3-ethyl-7-isopropyl-[2-14C]-azulene-1-sulfonate
✍ Scribed by Hiroaki Suzaka; Tsuyoshi Tomiyama; Shiro Ikegami
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- French
- Weight
- 415 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Sodium 3‐ethyl‐7‐isopropylazulene‐1‐sulfonate 1, which has been found to be a potent and chemically stable agent having anti‐inflammatory and anti‐ulcerous activity, was synthesized in ^14^C‐labelled form by using potassium [^14^C]‐cyanide. ^14^C‐Labelled 1 with a specific activity of 9.02 mCi/mmol was prepared in eight steps in 21.9% overall chemical yield from 3‐(t‐butyldiphenylsilyloxy)propyl tosylate 10.
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## Abstract Sodium 3‐ethyl‐7‐isopropyl‐1‐azulenesulfonate 1, a new therapeutic agent for stomatitis, pharyngitis and ophthalmia was labelled with carbon‐14 in the ethyl group attached to the azulene ring for use in metabolic studies. ^14^C‐labelled 1 with a specific activity of 1.98 GBq/mmol was pr
## Abstract The synthesis of 1,1,3,3‐tetraethoxypropane‐1,2,3‐^14^C~3~ from uniformly labeled paraldehyde is described. The synthesis involves three steps and proceeds in an overall yield of 25%. The final product is greater than 95% radiochemically pure and it is stable indefinitely when stored as
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1-(Cyclohexyloxycarbony1oxy)ethyl 7P-[2-(2-aminothiazol-~-yl~acetamido]-3-[[[1-(2-dimethylaminoethyl~-1H-tetrazol-~-yl]thio]methyl]ceph-3-em-4-carboxylate dihydrochloride (SCE-2174), a new orally active cephalos orin, was labeled with carbon-14 starting from [l-lgC] c yc lohexanol (1) . 1 -Chloroe t