Synthesis of Tc-D,D-HMPAO and Tc-L,L-HMPAO and their comparison of chemical and biological properties
作者:Hueisch-Jy Ding、Ying-Fong Huang、Cherng-Chyi Tzeng、Li-Mei Wei、Si-Jung Yeh
DOI:10.1016/s0960-894x(99)00557-0
日期:1999.11
Tc-D,D- and Tc-L,L-HMPAO were synthesized. The stability of Tc-D,D- and Tc-L,L-HMPAO in vitro is similar to that of d,l-isomers by the spectrophotometric and three strips methods. Cerebral uptake (%D in brain) for the L,L-isomer is higher than the D,D- and d,1-isomer in rats. Delayed studies shows that TC-L,L-HMPAO reveals less washout and reflects a higher cerebral deposition properties than the D,D- and d,l-isomer. (C) 1999 Elsevier Science Ltd. All rights reserved.