10th international symposium on the synthesis and applications of isotopes and isotopically labelled compounds - poster presentations Session 19, Sunday, June 14 to Thursday, June 18, 2009
Synthesis and characterization of isotopically labelled drugs
作者:Frans M. Kaspersen、Jan F. Vader、Carel W. Funke、Eric M. G. Sperling
DOI:10.1002/recl.19931120218
日期:——
The article describes approaches for the synthesis and analysis of isotopically (2H, 3H, 13C, 14C, 35S) labelleddrugs necessary for the development of a pharmacologically active compound into a registered drug.
The preparation of [U-C-14] 2,4-dichlorophenol was formerly achieved by a Sandmeyer reaction with [U-C-14] 2,4-dichloroaniline but this sensitive step gave unreproductive yields in our hands.We describe another route to [U-C-14] 2,4-dichlorophenol by the oxidative chlorination of [U-C-14] phenol. This shorter route is safer and gives satisfactory yields. The nature of the oxidizer is discussed.
SUSAN A. B.; EBERT D. A.; DUNCAN W. P., J. LABELLED COMPOUNDS AND RADIOPHARM., 1979, 16, NO 4, 579-589