Drug – bio-affecting and body treating compositions – Radionuclide or intended radionuclide containing; adjuvant... – In an organic compound
Reexamination Certificate
2008-09-02
2008-09-02
Jones, D. L (Department: 1618)
Drug, bio-affecting and body treating compositions
Radionuclide or intended radionuclide containing; adjuvant...
In an organic compound
C424S001110, C544S224000, C544S242000
Reexamination Certificate
active
11603703
ABSTRACT:
The invention is a method and related precursor for preparing18F-FLT. The precursor has a butoxycarbonyl protecting group at the 5′-position that results in low amounts of chromophoric byproducts being formed during deprotection. The method for preparing18F-FLT is efficient and makes the final purification step less complicated.
REFERENCES:
patent: 7160537 (2007-01-01), Walsh et al.
Padgett Henry C.
Walsh Joseph C.
Ysaguirre Tanea
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