Figure 1 | Scientific Reports

Figure 1

From: PET imaging of brain aromatase in humans and rhesus monkeys by 11C-labeled cetrozole analogs

Figure 1

The chemical structures of [11C]cetrozole (A) and its analogs, [11C]meta-cetrozole (B), [11C]nitro-cetrozole (C), and [11C]iso-cetrozole (D). The methyl moiety in [11C]meta-cetrozole showed a different position from that in [11C]cetrozole. [11C]Nitro-cetrozole contained a nitro group instead of the cyano group of [11C]cetrozole. [11C]Iso-cetrozole showed a different nitrogen position in the triazole in comparison with [11C]cetrozole.

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