A radiotracer for mapping cholinergic neurons of the brain.
A radiotracer for mapping cholinergic neurons of the brain.
复制标题
用于绘制大脑胆碱能神经元图谱的放射性示踪剂。
DOI:
10.1021/jm00170a002
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发表时间:
1990
影响因子:
7.3
通讯作者:
Wieland,DM
中科院分区:
文献类型:
--
作者:
Jung,YW;VanDort,ME;Gildersleeve,DL;Wieland,DM
Racemic IBVM4 was synthesized from (±)-5-amino-benzovesamicol (l) 1 bydiazotization and reaction with potassium iodide (Scheme I). Reaction of (±)-IBVM with (-)-(S)-a-methoxy-a-(trifluoromethyl) phenylacetyl (MTPA) chloride5 gave a mixture of the diastereomeric esters 2 and 4; separation of the esters was achieved by preparative TLC on silica gel after several developments with hexane/EtOAc (19/1). 6 7Base hydrolysis of the MTPA esters provided pure enantiomers 3 and 5.7 125I-(4) Satisfactory IR, NMR (and 13C), mass spectra, and ele-mental analysis were obtained for (±)-IBVM: white solid; mp 122 C (recrystallized from ether/hexane); IR (KBr) 3610-3275 (br) 3059, 3025, 2929, 2907, 1645, 1602 cm'1; NMR (CDC13, 300 MHz) 5 1.68-1.97 (m, 4), 2.44-3.03 (m, 9 H), 3.25 (d, d, J= 16.1, 5.7 Hz, 1 H), 3.84 (d, d, d, J= 16.1, 10.2, 5.6 Hz, 1 H), 4.3 (br s, OH), 6.84 (t, J= 7.7 Hz, 1