Fig. 3

In all reactions, a consistent amount of TCO–Z_DGCR2:AM106 was used. As the amount of [¹⁸F]MeTz was increased, both the molar activity (red squares) and radioactivity yield (blue dots) of the resulting [¹⁸F]Z_DGCR2:AM106 also increased. This suggests that a portion of the TCO groups remained unoccupied and available for further reactions, possibly contributing to the observed increase in yield