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Lei M, Wang X, Zhang T, Shi Y, Wen J, Zhang Q. Homochiral Eu 3+@MOF Composite for the Enantioselective Detection and Separation of ( R/ S)-Ornidazole. Inorg Chem 2022; 61:6764-6772. [PMID: 35481747 DOI: 10.1021/acs.inorgchem.1c03695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development of homochiral materials for the enantioselective detection and separation of chiral drugs is in high demand for the pharmaceutical industry. Herein, an anionic homochiral metal-organic framework (HMOF) with in situ generated [Me2NH2]+ counterions, {[Me2NH2]2[Zn2(d-L)2(HCO2)(OH)]·5H2O}n (HMOF-1), was synthesized using a d-camphorate-derived enantiopure dicarboxylate ligand, 4,4'-[[(1R,3S)-1,2,2-trimethylcyclopentane-1,3-dicarbonyl]bis(azanediyl)]dibenzoic acid (d-H2L) via a simple solvothermal method. Interestingly, HMOF-1 could be used as a parent framework to encapsulate Eu3+ cations via an ion-exchange process, yielding an Eu3+@HMOF-1 composite with dual-luminescent centers. The obtained Eu3+@HMOF-1 has high chemical stability and good luminescence stability in water. Importantly, Eu3+@HMOF-1 exhibits enhanced enantioselectivity and sensitivity in the detection of an important chiral nitroimidazole antibiotic, (R/S)-ornidazole (ONZ) in comparison to HMOF-1 under the same aqueous conditions. The enantiomeric excess (ee) value of the ONZ enantiomers can be accurately determined by the ratio of dual emission from the ligand and Eu3+. In addition, Eu3+@HMOF-1 shows the enantioselective separation of racemic ONZ enantiomers with an ee value of 86.6%. This work provides a simple strategy for the preparation of LnIII-incorporated HMOF composite materials for the simultaneous enantioselective detection and separation of chiral drugs.
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Affiliation(s)
- Mingyuan Lei
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Xiaohe Wang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Tianjun Zhang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Yang Shi
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Jinghong Wen
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Qingfu Zhang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
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Cao Y, Zhao M, Wu X, Guo B, Chen Y, Yu J, Cao G, Zhang J, Shi Y, Zhang Y. Quantification of levornidazole and its metabolites in human plasma and urine by ultra-performance liquid chromatography-mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 963:119-27. [PMID: 24953495 DOI: 10.1016/j.jchromb.2014.05.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 05/24/2014] [Accepted: 05/28/2014] [Indexed: 11/16/2022]
Abstract
We developed and validated an ultra-performance liquid chromatographic (UPLC) method coupled with atmospheric pressure chemical ionization (APCI) mass spectrometry for simultaneous determination of levornidazole and its first-pass metabolites, l-chloro-3-(2-hydroxymethyl-5-nitro-l-imidazolyl)-2-propanol (Ml), 2-methyl-5-nitroimidazole (M2) and 3-(2-methyl-5-nitro-1-imidazolyl)-1,2-propanediol (M4), in human plasma and urine. The biological samples were pretreated by protein precipitation and liquid-liquid extraction and analyzed using an ACQUITY UPLC CSH C18 column (2.1×50 mm, 1.7 μm) and a QTRAP mass spectrometer in multiple reaction monitoring mode via APCI. Acetonitrile and 0.1% formic acid in water was used as the mobile phase in gradient elution at a flow rate of 0.6 mL/min. The lower limit of quantification of this method was 0.0100, 0.00500, 0.0200 and 0.00250 μg/mL for levornidazole, M1, M2 and M4, respectively. The linear calibration curves were obtained for levornidazole, M1, M2, and M4 over the range of 0.0100-5.00, 0.00500-2.50, 0.0200-10.0 and 0.00250-1.25 μg/mL, respectively. The intra- and inter-batch precision was less than 12.2% in plasma and less than 10.8% in urine. The intra- and inter-batch accuracy was 87.8-105.7% in plasma and 92.8-109.2% in urine. The mean recovery of levornidazole, M1, M2 and M4 was 91.1-105.1%, 95.8-103.8%, 87.8-96.8%, 96.8-100.6% from plasma and 96.0-100.9%, 96.9-107.9%, 95.1-102.7%, 103.7-105.9% from urine respectively. This method was validated under various conditions, including room temperature, freeze-thaw cycles, long-term storage at -40 ± 5°C, after pretreatment in the autosampler (at 10°C), and 10- and 100-fold dilution. This newly established analytical method was successfully applied in a pharmacokinetic study following single intravenous infusion of levornidazole in 24 healthy Chinese subjects.
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Affiliation(s)
- Yuran Cao
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Miao Zhao
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Xiaojie Wu
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Beining Guo
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Yuancheng Chen
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Jicheng Yu
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Guoying Cao
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Jing Zhang
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China.
| | - Yaoguo Shi
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China
| | - Yingyuan Zhang
- Institute of Antibiotics, Huashan Hospital, Fudan University, 12 Middle Wulumuqi Road, Shanghai 200040, China; Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, 12 Middle Wulumuqi Road, Shanghai 200040, China
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Liu R, Li N, Liu N, Zhou X, Dong ZM, Wen XJ, Liu LC. Effects of systemic ornidazole, systemic and local compound ornidazole and pefloxacin mesylate on experimental periodontitis in rats. Med Sci Monit 2012; 18:BR95-102. [PMID: 22367122 PMCID: PMC3560749 DOI: 10.12659/msm.882514] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background The purpose of the current study is to evaluate the effects of systemic ornidazole (SO) and systemic and local compound ornidazole and pefloxacin mesylate (SCOPM/LCOMP) on the inflammatory response associated with rat experimental chronic periodontitis (ECP) in sites with subgingival debridement. Material/Methods Periodontitis was induced in male Sprague-Dawley rats by placing a thin steel ligature around the upper first molars and inoculating them with Porphyromonas gingivalis 381. After the successful induction of the rat ECP, the periodontitis rats were randomly divided into 3 different combined treatment groups: (A) SO with scaling and root planing (SRP); (B) SCOMP with SRP; and (C) LCOMP with SRP. After 2 weeks the effects of the treatments were evaluated based on gingivitis, plaque index, probing pocket depth, aspartate aminotransferase, alveolar bone loss, and hematoxylin-eosin staining of the region around the first molars. Results After treatment, comparison with ECP was performed. The mean percentage reductions of SBI in SO, SCOPM, and LCOPM were 27.73%, 33.61%, and 58.82%, respectively. Those of PI were 33.20%, 42.80%, and 60.00%; those of PPD were 48.66%, 55.70%, and 72.48%; those of GCF-AST were 41.64%, 49.03%, and 66.42%; and those of ABL were 41.19%, 43.63%, and 54.47%, respectively. The inflammatory score of H&E showed median scores of 2.5, 1.75, 1.63, and 0.95 for ECP, SO, SCOMP, and LCOMP, respectively. All 3 treatment groups exhibited significantly reduced inflammation indicators (P<0.05). Of the 3, group C was the most effective (P<0.05). Conclusions Although all the combined treatment groups responded to therapy with significant resolution of the infection, adjunctive LCOMP therapy is more effective for periodontitis.
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Affiliation(s)
- Rui Liu
- Department of Stomatology, Research Institute of Surgery and Daping Hospital, 3rd Military Medical University, Chongqing, China
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