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Kaya AA, Menzek A, Åžahin E. Synthesis of cyclohexane derivatives including Br, Cl, N, O, and S at 1,2,4,5-positions: selectivity in addition reactions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.11.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Garza-Sánchez F, Chapman DJ, Cooper JB. NITZSCHIA OVALIS (BACILLARIOPHYCEAE) MONO LAKE STRAIN ACCUMULATES 1,4/2,5 CYCLOHEXANETETROL IN RESPONSE TO INCREASED SALINITY(1). JOURNAL OF PHYCOLOGY 2009; 45:395-403. [PMID: 27033818 DOI: 10.1111/j.1529-8817.2009.00667.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The growth of microalgae in hypersaline conditions requires that cells accumulate osmoprotectants. In many instances, these are polyols. We isolated the diatom Nitzschia ovalis H. J. Arn. from the saline and alkaline water body Mono Lake (CA, USA). This isolate can grow in salinities ranging from 5 to 120 parts per thousand (ppt) of salt but normally at 90 ppt salinity. In this report, we identified the major polyol osmoprotectant as 1,4/2,5 cyclohexanetetrol by electron ionization-mass spectrometry (EI-MS), (1) H, (13) C nuclear magnetic resonance spectroscopy (NMR), and infrared (IR) and showed an increase in cellular concentration in response to rising salinity. This increase in the cyclitol concentration was evaluated by gas chromatography of the derived tetraacetylated cyclohexanetetrol obtaining an average of 0.7 fmol · cell(-1) at 5 ppt and rising to 22.5 fmol · cell(-1) at 120 ppt. The 1,4/2,5 cyclohexanetetrol was also detected in the red alga Porphyridium purpureum. Analysis of the free amino acid content in N. ovalis cultures exposed to changes in salinity showed that proline and lysine also accumulate with increased salinity, but the cellular concentration of these amino acids is about 10-fold lower than the concentration of 1,4/2,5 cyclohexanetetrol. The comparison of amino acid concentration per cell with cyclitol suggests that this polyol is important in compensating the cellular osmotic pressure due to increased salinity, but other physiological functions could also be considered.
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Affiliation(s)
- Fernando Garza-Sánchez
- Ecology, Evolution and Marine Biology Department, University of California, Santa Barbara, California, 93106-9610, USAMolecular, Cellular and Developmental Biology Department, University of California, Santa Barbara, California, 93106-9610, USA
| | - David J Chapman
- Ecology, Evolution and Marine Biology Department, University of California, Santa Barbara, California, 93106-9610, USAMolecular, Cellular and Developmental Biology Department, University of California, Santa Barbara, California, 93106-9610, USA
| | - James B Cooper
- Ecology, Evolution and Marine Biology Department, University of California, Santa Barbara, California, 93106-9610, USAMolecular, Cellular and Developmental Biology Department, University of California, Santa Barbara, California, 93106-9610, USA
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Sun Y, Zhang G, Hawkes CA, Shaw JE, McLaurin J, Nitz M. Synthesis of scyllo-inositol derivatives and their effects on amyloid beta peptide aggregation. Bioorg Med Chem 2008; 16:7177-84. [DOI: 10.1016/j.bmc.2008.06.045] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2008] [Revised: 06/19/2008] [Accepted: 06/24/2008] [Indexed: 11/25/2022]
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Kawazoe K, Furusho Y, Nakanishi S, Takata T. ON THE STEREOSELECTIVITY IN BISDIHYDROXYLATION OF 1,5-CYCLOOCTADIENE WITH OSMIUM TETROXIDE. SYNTHETIC COMMUN 2006. [DOI: 10.1081/scc-100104460] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Kentaro Kawazoe
- a Department of Applied Chemistry , College of Engineering , Osaka Prefecture University, 1-1, Gakuen-cho, Sakai, Osaka , 599-8531 , Japan
| | - Yoshio Furusho
- a Department of Applied Chemistry , College of Engineering , Osaka Prefecture University, 1-1, Gakuen-cho, Sakai, Osaka , 599-8531 , Japan
| | - Saburo Nakanishi
- a Department of Applied Chemistry , College of Engineering , Osaka Prefecture University, 1-1, Gakuen-cho, Sakai, Osaka , 599-8531 , Japan
| | - Toshikazu Takata
- a Department of Applied Chemistry , College of Engineering , Osaka Prefecture University, 1-1, Gakuen-cho, Sakai, Osaka , 599-8531 , Japan
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Çelik M, Alp C, Coşkun B, Gültekin MS, Balci M. Synthesis of diols using the hypervalent iodine(III) reagent, phenyliodine(III) bis(trifluoroacetate). Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.137] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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One-pot synthesis from 1,4-cyclohexadiene of (±)-1,4/2,5-cyclohexanetetrol, a naturally occurring cyclitol derivative. Carbohydr Res 1998. [DOI: 10.1016/s0008-6215(98)00073-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Tschamber T, Backenstrass F, Fritz H, Streith J. Catalytic One-Pot Osmylation of Cyclohexadienes: Stereochemical and conformational studies of the resulting polyols. Helv Chim Acta 1992. [DOI: 10.1002/hlca.19920750408] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Suami T, Suzuki A, Uchida M, Yanagida SI. Aminocyclitols. XX. Bromination of DL-epi-Inositol. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1969. [DOI: 10.1246/bcsj.42.2672] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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