STRUCTURE ACTIVITY RELATIONSHIP OF TC-99M COMPLEXES OF PHENYLENEDIAMINE THIOL THIOETHER LIGANDS (PHAT) TO BRAIN UPTAKE IN RATS

被引:13
作者
MCBRIDE, BJ [1 ]
BALDWIN, RM [1 ]
KERR, JM [1 ]
WU, JL [1 ]
SCHULTZE, LM [1 ]
SALAZAR, NE [1 ]
CHINITZ, JM [1 ]
BYRNE, EF [1 ]
机构
[1] MEDIPHYS INC,RES & DEV LAB,EMERYVILLE,CA 94608
关键词
D O I
10.1021/jm00053a010
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
A novel class of ligands, phenylenediamine-thiol-thioether (PhAT), was synthesized, and their Tc-99m complexes were evaluated for potential use as a functional brain imaging agent. The ligands reacted with (NaTcO4)-Tc-99m and SnCl2 to form single, stable, neutral, and lipophilic Te-99m complexes. Several of these complexes showed significant brain uptake and retention in rats. In particular, the S-ethyl, allyl, and propargyl derivatives had high initial brain uptake (0.88, 0.99, and 0.82% dose/g at 5 min, respectively) and good retention (0.71, 0.75, and 0.67% dose/g at 30 min). The structure-activity relationship of alkyl, alkenyl, and alkynyl thioether derivatives is reported.
引用
收藏
页码:81 / 86
页数:6
相关论文
共 25 条
[1]   NEUTRAL TECHNETIUM(V) COMPLEXES WITH AMIDE THIOL THIOETHER CHELATING LIGANDS [J].
BRYSON, N ;
DEWAN, JC ;
LISTERJAMES, J ;
JONES, AG ;
DAVISON, A .
INORGANIC CHEMISTRY, 1988, 27 (12) :2154-2161
[2]   1-ALKYL ( OR ARYL-)AMINO-2-METHYLPROPANE-2-THIOLS - SOME BIDENTATE AND TETRADENTATE NITROGEN-SULFUR LIGANDS FROM SCHIFFS BASE DISULFIDES [J].
CORBIN, JL ;
WORK, DE .
JOURNAL OF ORGANIC CHEMISTRY, 1976, 41 (03) :489-491
[3]  
EFANGE SMN, 1987, J NUCL MED, V28, P1012
[4]   SYNTHESIS AND BIODISTRIBUTION OF TC-99M-LABELED PIPERIDINYL BIS(AMINOETHANETHIOL) COMPLEXES - POTENTIAL BRAIN PERFUSION IMAGING AGENTS FOR SINGLE PHOTON-EMISSION COMPUTED-TOMOGRAPHY [J].
EFANGE, SMN ;
KUNG, HF ;
BILLINGS, JJ ;
BLAU, M .
JOURNAL OF MEDICINAL CHEMISTRY, 1988, 31 (05) :1043-1047
[5]  
HOLMAN BL, 1985, RADIONUCLIDE IMAGING, P163
[6]  
KUNG HF, 1986, J NUCL MED, V27, P1051
[7]  
KUNG HF, 1984, J NUCL MED, V25, P326
[8]  
KUNG HF, 1983, J NUCL MED, V24, P66
[9]  
LEVER SZ, 1985, J NUCL MED, V26, P1287
[10]  
LOBERG MD, 1979, J NUCL MED, V20, P1181