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Wang W, Meng X, Zhu J, Zhang X. An efficient and practical asymmetric synthesis of (−)-tasimelteon. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2018.1545031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Wenbing Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology , Hangzhou , P. R. China
| | - Xiangwei Meng
- College of Pharmaceutical Sciences, Zhejiang University of Technology , Hangzhou , P. R. China
| | - Jianrong Zhu
- Zhejiang Jingxin Pharmaceutical Co., Ltd , Xinchang County , P. R. China
| | - Xingxian Zhang
- College of Pharmaceutical Sciences, Zhejiang University of Technology , Hangzhou , P. R. China
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Wang M, Qian Y, Liu X, Wei P, Deng M, Wang L, Wu H, Zhu G. Multiple spectroscopic analyses reveal the fate and metabolism of sulfamide herbicide triafamone in agricultural environments. Environ Pollut 2017; 230:107-115. [PMID: 28649038 DOI: 10.1016/j.envpol.2017.06.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/20/2017] [Accepted: 06/08/2017] [Indexed: 05/22/2023]
Abstract
Triafamone, a sulfamide herbicide, has been extensively utilized for weed control in rice paddies in Asia. However, its fate and transformation in the environment have not been established. Through a rice paddy microcosm-based simulation trial combined with multiple spectroscopic analyses, we isolated and identified three novel metabolites of triafamone, including hydroxyl triafamone (HTA), hydroxyl triafamone glycoside (HTAG), and oxazolidinedione triafamone (OTA). When triafamone was applied to rice paddies at a concentration of 34.2 g active ingredient/ha, this was predominantly distributed in the paddy soil and water, and then rapidly dissipated in accordance with the first-order rate model, with half-lives of 4.3-11.0 days. As the main transformation pathway, triafamone was assimilated by the rice plants and was detoxified into HTAG, whereas the rest was reduced into HTA with subsequent formation of OTA. At the senescence stage, brown rice had incurred triafamone at a concentration of 0.0016 mg/kg, but the hazard quotient was <1, suggesting that long-term consumption of the triafamone-containing brown rice is relatively safe. The findings of the present study indicate that triafamone is actively metabolized in the agricultural environment, and elucidation of the link between environmental exposure to these triazine or oxazolidinedione moieties that contain metabolites and their potential impacts is warranted.
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Affiliation(s)
- Mengcen Wang
- Institute of Pesticide & Environmental Toxicology, Zhejiang University, Hangzhou, China
| | - Yuan Qian
- Institute of Pesticide & Environmental Toxicology, Zhejiang University, Hangzhou, China
| | - Xiaoyu Liu
- Institute of Pesticide & Environmental Toxicology, Zhejiang University, Hangzhou, China
| | - Peng Wei
- Institute of Pesticide & Environmental Toxicology, Zhejiang University, Hangzhou, China
| | - Man Deng
- Institute of Pesticide & Environmental Toxicology, Zhejiang University, Hangzhou, China
| | - Lei Wang
- Center for Drug Design, Academic Health Center, University of Minnesota, Minneapolis, USA
| | - Huiming Wu
- School of Agricultural and Food Science, Zhejiang A&F University, Hangzhou, China
| | - Guonian Zhu
- Institute of Pesticide & Environmental Toxicology, Zhejiang University, Hangzhou, China.
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Hou X, Zhang H, Chen BC, Guo Z, Singh A, Goswami A, Gilmore JL, Sheppeck JE, Dyckman AJ, Carter PH, Mathur A. Regioselective Epoxide Ring Opening for the Stereospecific Scale-Up Synthesis of BMS-960, A Potent and Selective Isoxazole-Containing S1P1 Receptor Agonist. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.6b00366] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoping Hou
- Discovery
Chemistry, Bristol-Myers Squibb, Princeton, New Jersey 08540, United States
| | - Huiping Zhang
- Discovery
Chemistry, Bristol-Myers Squibb, Princeton, New Jersey 08540, United States
| | - Bang-Chi Chen
- Discovery
Chemistry, Bristol-Myers Squibb, Princeton, New Jersey 08540, United States
| | - Zhiwei Guo
- Chemical & Synthetic Development, Bristol-Myers Squibb, New Brunswick, New Jersey 08903, United States
| | - Amarjit Singh
- Chemical & Synthetic Development, Bristol-Myers Squibb, New Brunswick, New Jersey 08903, United States
| | - Animesh Goswami
- Chemical & Synthetic Development, Bristol-Myers Squibb, New Brunswick, New Jersey 08903, United States
| | - John L. Gilmore
- Discovery
Chemistry, Bristol-Myers Squibb, Princeton, New Jersey 08540, United States
| | - James E. Sheppeck
- Discovery
Chemistry, Bristol-Myers Squibb, Princeton, New Jersey 08540, United States
| | - Alaric J. Dyckman
- Discovery
Chemistry, Bristol-Myers Squibb, Princeton, New Jersey 08540, United States
| | - Percy H. Carter
- Discovery
Chemistry, Bristol-Myers Squibb, Princeton, New Jersey 08540, United States
| | - Arvind Mathur
- Discovery
Chemistry, Bristol-Myers Squibb, Princeton, New Jersey 08540, United States
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Rocha LC, Ferreira HV, Pimenta EF, Berlinck RGS, Rezende MOO, Landgraf MD, Seleghim MHR, Sette LD, Porto ALM. Biotransformation of α-bromoacetophenones by the marine fungus Aspergillus sydowii. Mar Biotechnol (NY) 2010; 12:552-557. [PMID: 19941024 DOI: 10.1007/s10126-009-9241-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2008] [Accepted: 09/28/2009] [Indexed: 05/28/2023]
Abstract
The biotransformation reactions of α-bromoacetophenone (1), p-bromo-α-bromoacetophenone (2), and p-nitro-α-bromoacetophenone (3) by whole cells of the marine fungus Aspergillus sydowii Ce19 have been investigated. Fungal cells that had been grown in artificial sea water medium containing a high concentration of chloride ions (1.20 M) catalysed the biotransformation of 1 to 2-bromo-1-phenylethanol 4 (56%), together with the α-chlorohydrin 7 (9%), 1-phenylethan-1,2-diol 9 (26%), acetophenone 10 (4%) and phenylethanol 11 (5%) identified by GC-MS analysis. In addition, it was observed that the enzymatic reaction was accompanied by the spontaneous debromination of 1 to yield α-chloroacetophenone 5 (9%) and α-hydroxyacetophenone 6 (18%) identified by GC-FID analysis. When 2 and 3 were employed as substrates, various biotransformation products were detected but the formation of halohydrins was not observed. It is concluded that marine fungus A. sydowii Ce19 presents potential for the biotransformations of bromoacetophenone derivatives.
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Affiliation(s)
- Lenilson Coutinho Rocha
- Instituto de Química de São Carlos, Universidade de São Paulo, Av. Trabalhador, São-carlense, 400, CEP 13560-970, CP 780, São Carlos, SP, Brazil
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Rocha LC, Ferreira HV, Pimenta EF, Berlinck RGS, Seleghim MHR, Javaroti DCD, Sette LD, Bonugli RC, Porto ALM. Bioreduction of α-chloroacetophenone by whole cells of marine fungi. Biotechnol Lett 2009; 31:1559-63. [DOI: 10.1007/s10529-009-0037-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Revised: 05/18/2009] [Accepted: 05/19/2009] [Indexed: 10/20/2022]
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Gamenara D, Domínguez de María P. Candida spp. redox machineries: an ample biocatalytic platform for practical applications and academic insights. Biotechnol Adv 2009; 27:278-85. [PMID: 19500548 DOI: 10.1016/j.biotechadv.2009.01.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2008] [Revised: 12/31/2008] [Accepted: 01/12/2009] [Indexed: 10/21/2022]
Abstract
The use of oxidoreductases as biocatalysts for the production of a wide number of chiral building blocks is presently a mature (bio-)technology. In this context some industrial applications are currently performed by means of those enzymatic approaches, and new examples are expected to be realized. Moreover, oxidoreductases provide an interesting academic platform to undertake fundamental research in enzymology, to acquire a better understanding on catalytic mechanisms, and to facilitate the development of new biocatalytic applications. Within this area, a wide number of oxidoreductases from genus Candida spp. have been characterized and used as biocatalysts. These enzymes are rather diverse, and are able to carry out many useful reactions, like highly (enantio)selective keto-reductions, (de)racemizations and stereoinversions, and promiscuous catalytic imine reductions. In addition, some Candida spp. dehydrogenases are very useful for regenerating the cofactors, with the aid of sacrificial substrates. Addressing those features, the present paper aims to give an overview of these enzymes, by focusing on practical applications that these biocatalysts can provide. Furthermore, when possible, academic insights on the enzymatic performances will be discussed as well.
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Affiliation(s)
- Daniela Gamenara
- Organic Chemistry Department, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800 Montevideo, Uruguay
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de Lacerda PSB, Ribeiro JB, Leite SG, Ferrara MA, Coelho RB, Bon EP, da Silva Lima EL, Antunes O. Microbial reduction of ethyl 2-oxo-4-phenylbutyrate. Searching for R-enantioselectivity. New access to the enalapril like ACE inhibitors. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.04.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Poessl T, Kosjek B, Ellmer U, Gruber C, Edegger K, Faber K, Hildebrandt P, Bornscheuer U, Kroutil W. Non-Racemic Halohydrinsvia Biocatalytic Hydrogen-Transfer Reduction of Halo-Ketones and One-Pot Cascade Reaction to Enantiopure Epoxides. Adv Synth Catal 2005. [DOI: 10.1002/adsc.200505094] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zhu D, Mukherjee C, Hua L. ‘Green’ synthesis of important pharmaceutical building blocks: enzymatic access to enantiomerically pure α-chloroalcohols. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2005.08.037] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Antunes H, Fardelone LC, Rodrigues JAR, Moran PJ. Chemoenzymatic syntheses of (R)-2-bromo-, (R)2-chloro- and (R)2-azido-1-(1,3-benzodioxol-5-yl)-1-ethanol. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.tetasy.2004.07.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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