Radioiodinated arylaliphatic ether analogues of cholesterol
申请人:The University of Michigan
公开号:US04933157A1
公开(公告)日:1990-06-12
Novel radioiodinated analogues of naturally-occurring cholestrol esters, arylaliphatic cholesteryl ethers, are selective for low density lipoproteins and have been shown to be successful imaging agents for adrenal glands. The arylaliphatic cholesteryl ethers have the general formula: ##STR1## where X is a radioactive isotope of iodine and n is an integer between 1 and 20. Two illustrative examples, m-iodobenzyl cholesteryl ether and 12-(m-iodophenyl) dodecyl cholesteryl ether, were radiolabeled with .sup.125 I by an isotope exchange reaction. Tissue distribution studies indicate significant accumulation of the cholesteryl ethers in the adrenal glands, and to a lesser extent in the liver. The cholesteryl ethers selectively incorporate into plasma lipoproteins as determined by polyacrylamide gel electrophoresis.
Radioiodinated phospholipid ether analogues and methods of using same
申请人:The Board of Regents of The University of Michigan
公开号:US05347030A1
公开(公告)日:1994-09-13
Novel radioiodinated analogues of naturally-occurring phospholipid ethers are tumor-specific and have a triglycerol backbone structure which, in certain embodiments, is substituted at the 3-position with an alkyl phosphocholine and include a monoiodinated benzoyl side chain substituted at the 2-position in accordance with the general formula: ##STR1## where n= 1-15 ##STR2## m= 0-15; Z=.sup.123 I, .sup.125 I, and .sup.131 I; Y=NH.sub.2, NR.sub.2, and NR.sub.3, and R=alkyl, aralkyl.
申请人:The Board of Regents of the University of Michigan
公开号:US05795561A1
公开(公告)日:1998-08-18
Novel radioiodinated analogues of naturally-occurring phospholipid ethers are tumor-specific and have a triglycerol backbone structure which, in certain embodiments, is substituted at the 3-position with an alkyl phosphocholine and include a monoiodinated benzoyl side chain substituted at the 2-position in accordance with the general formula: ##STR1## where n=1-15 ##STR2## M=0-15; Z=.sup.123 I, .sup.125 I, and .sup.131 I; Y=NH.sub.2, NR.sub.2, and NR.sub.3, and R=alkyl, aralkyl.
新型放射性碘化天然磷脂醚类似物具有肿瘤特异性,并具有三酰甘油骨架结构,在某些实施例中,在3位被烷基磷酰胆碱置换,包括在2位被单碘苯甲酰侧链置换的单碘苯甲酰侧链,符合以下一般公式:##STR1## 其中n = 1-15,##STR2## M = 0-15; Z = .sup.123 I,.sup.125 I和.sup.131 I; Y = NH.sub.2,NR.sub.2和NR.sub.3,R = 烷基,芳基烷基。
Potential tumor- or organ-imaging agents. 26. Polyiodinated 2-substituted triacylglycerols as hepatographic agents
作者:Jamey P. Weichert、Marc A. Longino、Susan W. Schwendner、Raymond E. Counsell
DOI:10.1021/jm00159a019
日期:1986.9
3-dipalmitoylglycerol 2-[omega-(3-amino-2,4,6-triiodophenyl)alkanoates] were synthesized, radioiodinated with iodine-125, and evaluated for their ability to selectively localize in the liver for potential use as hepatographic imaging agents. Acid analogues 1d and 1e afforded relatively high levels of radioactivity in the liver (45 and 49% injected dose) 5 min after intravenous administration to rats. These acids displayed
Potential tumor or organ-imaging agents. 30. Radioiodinated phospholipid ethers
作者:Karen L. Meyer、Susan W. Schwendner、Raymond E. Counsell
DOI:10.1021/jm00129a020
日期:1989.9
A radioiodinated analogue of a naturally occurring alkyl lysophospholipid (ALP) was synthesized for evaluation as a potential tumor-localizing imagingagent. rac-1-[12-(m-Iodophenyl)dodecyl]-2-methylglycero-3-phosphocholine (ET-12IP-OMe, 14) was radiolabeled with iodine-125 via an isotope-exchange procedure. Tissue distribution studies with [125I]ET-12IP-OMe in tumor-bearing rats revealed an immediate