The precursor may need to be synthesized from simpler starting materials through a series of chemical reactions. This may involve protection and deprotection steps, functional group transformations, and purification.
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Silane, (1,1-dimethylethyl)[[5-[(4-methoxyphenyl)thio]-2-pentenyl]oxy]dimethyl-, (E)-
1-bromo-2-deoxy-2-[18F]fluoro-3,5-di-O-benzoyl-α-D-arabinofuranose
(Z)-8-(tert-Butyl-diphenyl-silanyloxy)-3-hydroxy-6-methyl-2-methylene-oct-6-enoic acid methyl ester
