T. Shimada, T. Yanagisawa, T. Tomiyama
1994
Citations
0
Influential Citations
2
Citations
Journal
Journal of Labelled Compounds and Radiopharmaceuticals
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. 14C-labelled 1 with a specific activity of 1.98 GBq/mmol was prepared in four steps in 39.3% overall chemical yield from [1 -14C]acetic acid sodium salt.