Synthesis of N-desmethyl derivatives of 17 alpha-acetoxy-11 beta(4-N,N-dimethylaminophenyl)-19-norpregna-4,9-diene-3,20-dione and mifepristone - Substrates for the synthesis of radioligands
Pn. Rao et al., Synthesis of N-desmethyl derivatives of 17 alpha-acetoxy-11 beta(4-N,N-dimethylaminophenyl)-19-norpregna-4,9-diene-3,20-dione and mifepristone - Substrates for the synthesis of radioligands, STEROIDS, 64(3), 1999, pp. 205-212
The syntheses of N-desmethyl derivatives of CDB-2914 and the mono-N-desmeth
yl derivative of Mifepristone are described. We also describe the use of th
e mono-desmethyl derivatives as substrates for the synthesis of N-tritometh
yl derivatives of CDB-2914 and Mifepristone with high specific activity (ca
. 80 Ci/mmol), which serve as radioligands for radioimmunoassay. (C) 1999 E
lsevier Science Inc. All rights reserved.