{"created":"2022-01-31T07:47:01.439477+00:00","id":2009691,"links":{},"metadata":{"_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":["1642837622505:1642837905044:1642837930013","1642838403551:1642838407312"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_title":"Assignment of the absolute configuration of 3,6-anhydrogalactose derivatives via diastereomeric glycosylation of threose derivatives obtained by periodate Oxidation.","subitem_title_language":"en"},{"subitem_title":"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_title_language":"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_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"absolute configuration","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"3,6-anhydrogalactose","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"agar","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"carrageenan","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"red seaweed","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"絶対配置","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"3,6-アンヒドロガラクトース","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"寒天","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"カラギーナン","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"紅藻","subitem_subject_language":"ja","subitem_subject_scheme":"Other"}]},"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_publisher":"琉球大学農学部","subitem_publisher_language":"ja"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_language":"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_source_identifier":"0370-4246","subitem_source_identifier_type":"ISSN"},{"subitem_source_identifier":"AN00250548","subitem_source_identifier_type":"NCID"}]},"item_1617186941041":{"attribute_name":"Source Title","attribute_value_mlt":[{"subitem_source_title":"琉球大学農学部学術報告","subitem_source_title_language":"ja"},{"subitem_source_title":"THE SCIENCE BULLETIN OF THE FACULTY OF AGRICULTURE UNIVERSITY OF THE RYUKYUS","subitem_source_title_language":"en"}]},"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_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","filename":"No64p033.pdf","mimetype":"application/pdf","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"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2018-04-26"},"publish_date":"2018-04-26","publish_status":"0","recid":"2009691","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_creator_id":"1","weko_shared_id":-1},"updated":"2022-10-31T05:08:55.058853+00:00"}