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Zhang Y, Li Q, Chao W, Qin Y, Chen J, Wang Y, Liu R, Lv Q, Wang J. Design, Synthesis and Antifungal Evaluation of Novel Pyrylium Salt In Vitro and In Vivo. Molecules 2022; 27:molecules27144450. [PMID: 35889323 PMCID: PMC9315806 DOI: 10.3390/molecules27144450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 02/04/2023] Open
Abstract
Nowadays, discovering new skeleton antifungal drugs is the direct way to address clinical fungal infections. Pyrylium salt SM21 was screened from a library containing 50,240 small molecules. Several studies about the antifungal activity and mechanism of SM21 have been reported, but the structure–activity relationship of pyrylium salts was not clear. To explore the chemical space of antifungal pyrylium salt SM21, a series of pyrylium salt derivatives were designed and synthesized. Their antifungal activity and structure-activity relationships (SAR) were investigated. Compared with SM21, most of the synthesized compounds exhibited equivalent or improved antifungal activities against Candida albicans in vitro. The synthesized compounds, such as XY10, XY13, XY14, XY16 and XY17 exhibited comparable antifungal activities against C. albicans with MIC values ranging from 0.47 to 1.0 μM. Fortunately, a compound numbered XY12 showed stronger antifungal activities and lower cytotoxicity was obtained. The MIC of compound XY12 against C. albicans was 0.24 μM, and the cytotoxicity decreased 20-fold as compared to SM21. In addition, XY12 was effective against fluconazole-resistant C. albicans and other pathogenic Candida species. More importantly, XY12 could significantly increase the survival rate of mice with a systemic C. albicans infection, which suggested the good antifungal activities of XY12 in vitro and in vivo. Our results indicated that structural modification of pyrylium salts could lead to the discovery of new antifungal drugs.
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Affiliation(s)
- Yue Zhang
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (Y.Z.); (Q.L.); (J.C.); (Y.W.)
| | - Qiuhao Li
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (Y.Z.); (Q.L.); (J.C.); (Y.W.)
| | - Wen Chao
- Experimental Teaching Center of Basic Medicine College, Navel Medical University, Shanghai 200433, China;
| | - Yulin Qin
- Fudan University Minhang Hospital, Shanghai 201199, China;
| | - Jiayan Chen
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (Y.Z.); (Q.L.); (J.C.); (Y.W.)
| | - Yingwen Wang
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (Y.Z.); (Q.L.); (J.C.); (Y.W.)
| | - Runhui Liu
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (Y.Z.); (Q.L.); (J.C.); (Y.W.)
- Correspondence: (R.L.); (Q.L.); (J.W.)
| | - Quanzhen Lv
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (Y.Z.); (Q.L.); (J.C.); (Y.W.)
- Correspondence: (R.L.); (Q.L.); (J.W.)
| | - Jinxin Wang
- School of Pharmacy, Naval Medical University, Shanghai 200433, China; (Y.Z.); (Q.L.); (J.C.); (Y.W.)
- Correspondence: (R.L.); (Q.L.); (J.W.)
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Kachkovsky A, Obernikhina N, Prostota Y, Naumenko A, Melnyk D, Yashchuk V. Estimation of the basicity of the donor strength of terminal groups in cationic polymethine dyes. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Fahmy HM, Negm NA, Elwahy AH, Abou Kana MT. Laser induced fluorescence, photo-physical parameters and photo-stability of new fluorescein derivatives. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.12.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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