Boronic acid adducts of rhenium dioxime and technetium-99M dioxime complexes containing a biochemically active group
申请人:BRACCO INTERNATIONAL B.V.
公开号:EP0441491A1
公开(公告)日:1991-08-14
Boronic acid adducts of technetium-99m and radioactive rhenium dioxime complexes, each of which include biochemically active groups, are useful as diagnostic and therapeutic agents, respectively.
锝-99m 的硼酸加合物和放射性二氧化铼络合物都含有生化活性基团,可分别用作诊断和治疗药物。
Synthesis of the four stereoisomers of 1-azabicyclo[2.2.2]oct-3-yl-α-hydroxy-α-(4-phenylboronic acid)-α-phenylacetate (QNB-boronic acid), including a preparative HPLC method to separate diastereoisomeric mixtures with high optical purity
作者:P. Nanjappan、K. Ramalingam、D.J. Nowotnik
DOI:10.1016/s0957-4166(00)82085-6
日期:1992.10
The four stereoisomers of 1-azabicyclo[2.2.2]oct-3-yl-alpha-hydroxy-alpha-(4-phenylboronic acid)-alpha-phenylacetate (QNB boronic acids, 1a-1d) were synthesized initially via 1-azabicyclo[2.2.2]oct-3-yl-alpha hydroxy-alpha-(4-iodophenyl)-alpha-phenylacetate (iodo-QNBs, 6a-6d) using an adaptation of a published procedure. The number of steps involved were reduced substantially using a distinctly different approach. This involved the synthesis of diastereoisomers of QNB-boronic acid, followed by separation and isolation of enantiomers by preparative reversed-phase HPLC. An improved method of synthesis of alpha-hydroxy-alpha-(4-aminophenyl)-alpha-phenyl-acetic acid (3a and 3b) from alpha-hydroxy-alpha-(4-nitrophenyl)-alpha-phenylacetic acid (2a and 2b) is also described.
US5387409A
申请人:——
公开号:US5387409A
公开(公告)日:1995-02-07
Preparation and Properties of (R)-(−)-1-Azabicyclo[2.2.2]Oct-3-yl-(R)-(+)-α-Hydroxy-α-(4-[125l]Iodophenyl)-α-Phenyl Acetate and (R)-(−)-1-Azabicyclo[2.2.2]Oct-3-Yl-(S)-(−)-α-hydroxy-α-(4-[125l]iodophenyl)-α-phenyl acetate as potential radiopharmaceuticals
作者:Victor I. Cohien、Waclaw J. Rzeszotarski、Raymond E. Gibson、Linda H. Fan、Richard C. Reba
DOI:10.1002/jps.2600781011
日期:1989.10
alpha-phenyl acetate. After hydrogenation, the (R,R)- and (R,S)-amines were converted to the respective triazene derivatives. The triazene derivatives reacted with sodium [125I]iodide to give (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(R)-(+)- alpha-hydroxy-alpha-(4-[125I]iodophenyl)-alpha-phenyl acetate and (R)-(-)-1-azabicyclo[2.2.2]oct-3-yl-(S)-(-)-alpha-hydroxy- alpha-(4-[125I]iodophenyl)-alpha-phenyl