{"_buckets": {"deposit": "0c2cf2de-db6d-41fd-9f4e-7dbfb0d52142"}, "_deposit": {"id": "2009691", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2009691"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02009691", "sets": ["1642837930013", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "Assignment of the absolute configuration of 3,6-anhydrogalactose derivatives via diastereomeric glycosylation of threose derivatives obtained by periodate Oxidation.", "subitem_1551255648112": "en"}, {"subitem_1551255647225": "過ヨウ素酸酸化によるトレオース誘導体のグリコシドジアステレオマーを経由した3,6-アンヒドロガラクトースの絶対配置の帰属", "subitem_1551255648112": "ja"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Takano, Ryo", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Tohma, Yurina", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "高野, 良", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "當間, 優里菜", "creatorNameLang": "ja"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186609386": {"attribute_name": "Subject", "attribute_value_mlt": [{"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "absolute configuration"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "3,6-anhydrogalactose"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "agar"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "carrageenan"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "red seaweed"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "絶対配置"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "3,6-アンヒドロガラクトース"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "寒天"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "カラギーナン"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "紅藻"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "In order to assign the absolute configuration of 3,6-anhydrogalactose and its 2-Omethylether, their dimethylacetals were subjected to periodate oxidation to yield 3-O-(2-hydroxy-methyl) threose dimethylacetal derivatives, which were further derivatized to the diastereomeric glycosides with (R)- or (S)-2-octanol. Their TMS derivatives were completely resolved by gas-liquid chromatography. Complication in the chromatogram due to contaminants or by-products, when this procedure was applied to total methanolysate of the red algal galactans, was overcome by monitoring the fragment ion of m/z = 116 in the mass spectra using selected ion monitor (SIM)chromatogram using GC-MS.", "subitem_description_type": "Other"}, {"subitem_description": "紅藻の多糖の主要成分である3,6-アンヒドロガラクトースの絶対配置を帰属するため、3,6-アンヒドロガラクトースジメチルアセタールを過ヨウ素酸酸化して3-O-(2-ヒドロキシメチル)トレオースジメチルアセタールに変換し、さらにこのものを(R)-または(S)-2-オクタノールとのジアステレオマーのグリコシドに導いた。これらをTMS 誘導体としてGLC 分析したところ、両ジアステレオマーは完全に分離された。また、3,6-アンヒドロ-2-O-メチルガラクトースも同様に分離することができた。この方法を紅藻多糖の完全メタノリシス化物に適用すると、クロマトグラムは夾雑物または副生成物により複雑化するが、GC-MS を用い、m/z = 116 のフラグメントイオンを用いたSIM クロマトグラフィーを適用することにより解決された。", "subitem_description_type": "Other"}, {"subitem_description": "紀要論文", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "琉球大学農学部"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "eng"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/40910"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "琉球大学農学部学術報告"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "THE SCIENCE BULLETIN OF THE FACULTY OF AGRICULTURE UNIVERSITY OF THE RYUKYUS"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2017-12-28", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "64", "bibliographicPageEnd": "39", "bibliographicPageStart": "33"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "No64p033.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2009691/files/No64p033.pdf"}, "version_id": "0b285c3d-1847-4459-b212-4f9a53903cef"}]}, "item_title": "Assignment of the absolute configuration of 3,6-anhydrogalactose derivatives via diastereomeric glycosylation of threose derivatives obtained by periodate Oxidation.", "item_type_id": "15", "owner": "1", "path": ["1642837930013", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/40910", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2018-04-26"}, "publish_date": "2018-04-26", "publish_status": "0", "recid": "2009691", "relation": {}, "relation_version_is_last": true, "title": ["Assignment of the absolute configuration of 3,6-anhydrogalactose derivatives via diastereomeric glycosylation of threose derivatives obtained by periodate Oxidation."], "weko_shared_id": -1}
過ヨウ素酸酸化によるトレオース誘導体のグリコシドジアステレオマーを経由した3,6-アンヒドロガラクトースの絶対配置の帰属
http://hdl.handle.net/20.500.12000/40910
http://hdl.handle.net/20.500.12000/40910