| abstract |
Provided are compounds in which methyl groups present in thiamine, fursultiamine and derivatives thereof are labeled with 11 C, and precursors thereof, which can be applied to the PET method. An 11 C-labeled thiamine represented by the following chemical structural formula (1) or (2) (where X − represents a counter anion). 11 C-labeled prosultiamine, fursultiamine, octothiamine, alitiamine, thiamine disulfide, O-benzoylthiamine disulfide, thiamine monophosphate disulfide, O, S-dibenzoylthiamine, S-benzoylthiamine, benhotiamine, dicetiamine , Chicotiamine, bisibutamine and bisbenchamine. [Selection figure] None |