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. 2023 Apr 30;16(5):674. doi: 10.3390/ph16050674

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Chemical structures of (a) SS-28: H-Ser-Ala-Asn-Ser-Asn-Pro-Ala-Leu-Ala-Pro-Arg-Glu-Arg-Lys-Ala-Gly-c[Cys-Lys-Asn-Phe-Phe-Trp-Lys-Thr-Phe-Thr-Ser-Cys]-OH, and SS-14: H-Ala-Gly-c[Cys-Lys-Asn-Phe-Phe-Trp-Lys-Thr-Phe-Thr-Ser-Cys]-OH, (b) OctreoScan^®: [¹¹¹In]In-DTPA-DPhe-c[Cys-Phe-DTrp-Lys-Thr-Cys]-Thr(ol), and (c) [⁶⁸Ga]Ga/[¹⁷⁷Lu]Lu-DOTA-TATE: [⁶⁸Ga]Ga/[¹⁷⁷Lu]Lu-DOTA-DPhe-c[Cys-Phe-DTrp-Lys-Thr-Cys]-Thr-OH.

Chemical structures of (a) SS-28: H-Ser-Ala-Asn-Ser-Asn-Pro-Ala-Leu-Ala-Pro-Arg-Glu-Arg-Lys-Ala-Gly-c[Cys-Lys-Asn-Phe-Phe-Trp-Lys-Thr-Phe-Thr-Ser-Cys]-OH, and SS-14: H-Ala-Gly-c[Cys-Lys-Asn-Phe-Phe-Trp-Lys-Thr-Phe-Thr-Ser-Cys]-OH, (b) OctreoScan^®: [¹¹¹In]In-DTPA-DPhe-c[Cys-Phe-DTrp-Lys-Thr-Cys]-Thr(ol), and (c) [⁶⁸Ga]Ga/[¹⁷⁷Lu]Lu-DOTA-TATE: [⁶⁸Ga]Ga/[¹⁷⁷Lu]Lu-DOTA-DPhe-c[Cys-Phe-DTrp-Lys-Thr-Cys]-Thr-OH.