MULTIVALENT SACCHARIDE COMPLEX, RADIOACTIVE MULTIVALENT SACCHARIDE COMPLEX CONTRAST AGENT, AND USE THEREOF
申请人:Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C.
公开号:US20190091352A1
公开(公告)日:2019-03-28
Disclosed herein are a multivalent saccharide complex, a radioactive multivalent saccharide complex contrast agent and use thereof. The multivalent saccharide complex has a chelator, a linker, and glucose, and is configured to diagnose and evaluate the therapeutic effect of cancers.
BISPHOSPHONIC ACID DERIVATIVE AND COMPOUND THEREOF LABELED WITH RADIOACTIVE METAL NUCLIDE
申请人:Dozono Hiroyuki
公开号:US20120148492A1
公开(公告)日:2012-06-14
Disclosed is a radioactive bone diagnostic agent which gives a high ratio of radioactivity accumulation in bone to that in blood from an early stage after administration of the agent and allows capturing an image in a short time after administration. Also disclosed is a bisphosphonic acid derivative represented by the following chemical formula (II) or a salt thereof, wherein X represents —(CH
2
)
m
CO—, Y represents —(CH
2
)
n
—, R represents H, OH, or a halogen atom, m and n are independent of each other and m represents an integer of 1 to 3, and n represents an integer of 0 to 4.
A series of N,N,N‐substituted 1,4,7‐triazacyclononanes were prepared by adjusting the reaction sequences and conditions of the intermediate 1,4,7‐tribenzyl‐1,4,7‐triazonane‐2,6‐dione reduction with LiAlH4, the removal of benzyl with Pd/C, and alkylation.
asymmetry in the chelator. To evaluate the biological behavior of the new bifunctionalization, two well-studied PSMA (prostate-specific membrane antigen)-targeting peptidomimetics of varying hydrophobicity were chosen as proof-of-principle targeting vector molecules. Radiolabeling both bioconjugates with lutetium-177 was highly efficient at room temperature in 15 min at micromolar chelator concentration