Table 2.

R_T of stable gallium conjugates and [⁶⁸Ga]Ga-radioconjugates of all aprepitant derivatives.

Stable Ga-Conjugate	RT	[68Ga]Ga-Radioconjugate	RT
Ga-DOTA-Et-APT, Ga-5A	17.4 min	[68Ga]Ga-DOTA-Et-APT, [68Ga]Ga-5A	17.7 min
Ga-DOTA-Pr-APT, Ga-5B	16.8 min	[68Ga]Ga-DOTA-Pr-APT, [68Ga]Ga-5B	17.0 min
Ga-DOTA-Bu-APT, Ga-5C	16.9 min	[68Ga]Ga-DOTA-Bu-APT, [68Ga]Ga-5C	17.3 min
Ga-DOTA-HN-NH-Ac-APT, Ga-5D	15.8 min	[68Ga]Ga-DOTA-HN-NH-Ac-APT, [68Ga]Ga-5D	16.3 min
Ga-DOTA-Et-Ac-APT, Ga-5E	16.1 min	[68Ga]Ga-DOTA-Et-Ac-APT, [68Ga]Ga-5E	16.5 min