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. 2022 Oct 1;14(10):2102. doi: 10.3390/pharmaceutics14102102

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© 2022 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 cGMP and its analogues: (A) PET-cGMP, (B) 8-Br-cGMP, (C) 8-Br-PET-cGMP, (D) Rp-8-Br-PET-cGMPS, (E) Rp-cGMPS, (F) 8-pCPT-cGMP, (G) Rp-8-pCPT-cGMPS, (H) Rp-(2-N)ET-cGMPS, (I) Rp-8-Br-(2-N)ET-cGMPS, and (J) Rp-β-1,N²-Ac-8-Br-cGMPS. Structure of cGMP is shown in the black box. Green background indicates modifications to the cGMP molecule.