{"id":1121,"date":"2023-07-14T13:35:47","date_gmt":"2023-07-14T04:35:47","guid":{"rendered":"https:\/\/www.elst.okayama-u.ac.jp\/en\/?page_id=1121"},"modified":"2025-01-28T10:15:12","modified_gmt":"2025-01-28T01:15:12","slug":"areas01_biochem","status":"publish","type":"page","link":"https:\/\/www.elst.okayama-u.ac.jp\/en\/education\/mc-chikyu\/areas01_biochem\/","title":{"rendered":"Applied Natural Product Chemistry"},"content":{"rendered":"<h4>&nbsp;<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-69 aligncenter\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas01_biochem\/theme.png\" alt=\"\" width=\"501\" height=\"450\"><\/p>\n<p><span style=\"font-size: 12pt\">Our research targets are biologically active natural organic compounds. Using synthetic organic chemistry, we aim to elucidate the mechanism of activity expression and structure-activity relationship of physiologically active substances, and to apply them to agricultural chemicals and medicines.<br \/>\nOverview: Synthesis and activity evaluation of natural organic compounds and analogues, Elucidation of biosynthetic pathways of physiologically active substances, Application of biocatalysts (microorganisms and enzymes) to organic synthesis, Development of useful organic reactions<br \/>\nTarget: antibiotics, plant pathogenic toxins, plant hormones, anorexia, insect attractants; repellents, aroma substances<br \/>\nDevelopment: anticancer agents, antitumor agents, antiviral agents (influenza, novel coronavirus, HIV), herbicides, antibiotics, insecticides, perfumeries<\/span><\/p>\n<ul>\n<li><a href=\"http:\/\/www.okayama-u.ac.jp\/user\/agr\/eng\/education\/Course_of_Agrochemical_Bioscience\/Applied_Natural_Product_Chemistry.html\">School of Agriculture<\/a><\/li>\n<\/ul>\n<table class=\"el_table_fix\" style=\"width: 100%\">\n<tbody>\n<tr>\n<th style=\"width: 20%\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas01_biochem\/KIYOTA Hiromasa.JPG\" width=\"320\" height=\"408\"><\/th>\n<td style=\"width: 80%\">\n<ul>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Prof. KIYOTA Hiromasa<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">E-mail: kiyota<span style=\"color: #0000ff\"> [at]<\/span> okayama-u.ac.jp<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">organic synthesis, natural product chemistry, medicinal chemistry, pesticide chemistry<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 12pt\"><a class=\"el_linkBtn\" href=\"https:\/\/soran.cc.okayama-u.ac.jp\/html\/b6321b08949908a974506e4da22f6611_en.html\">Directory of Researchers<\/a> \u3000<a class=\"el_linkBtn\" href=\"https:\/\/www.cc.okayama-u.ac.jp\/~anpc\/index-E.html\">Link to group homepage<\/a><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"width: 276px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas01_biochem\/imgHiromasaKIYOTA_JP.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas01_biochem\/imgHiromasaKIYOTA_EN.jpeg\" alt=\"\" width=\"266\" height=\"203\"><\/a><p class=\"wp-caption-text\">X-ray crystal analysis of the covalent bond complex (fluorosialic acid-influenza sialidase)<\/p><\/div>\n<p>There is an urgent need to develop anti-influenza drugs following Tamiflu. We have elucidated the mechanism of action of influenza sialidase by irreversibly inhibiting this enzyme by 2,3-difluorosialic acid 1. Furthermore, as a next-generation inhibitor, we synthesized sulfosialic acid derivative 2 with the aim of increasing affinity with the enzyme active center, and showed that the introduction of a sulfo group is effective for new lead development.<\/p>\n<p>&nbsp;<\/p>\n<table class=\"el_table_fix\" style=\"width: 100%\">\n<tbody>\n<tr>\n<th style=\"width: 20%\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas01_biochem\/Minoru_IZUMI.JPG\" width=\"320\" height=\"408\"><\/th>\n<td style=\"width: 80%\">\n<ul>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Prof. IZUMI Minoru<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">E-mail: mizumi<span style=\"color: #0000ff\"> [at]<\/span> okayama-u.ac.jp<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Glycotechnology, Chemical Biology<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 12pt\"><a class=\"el_linkBtn\" href=\"https:\/\/soran.cc.okayama-u.ac.jp\/html\/2a5de67158b14e0474506e4da22f6611_en.html\">Directory of Researchers<\/a> \u3000<a class=\"el_linkBtn\" href=\"http:\/\/www.cc.okayama-u.ac.jp\/~mizumi\/member.html\">Link to group homepage<\/a><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas01_biochem\/img_IZUMI.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas01_biochem\/img_IZUMI.jpg\" alt=\"\" width=\"266\" height=\"203\"><\/a>Glycans have attracted much attention as molecules that play various roles in biological recognition, but their detailed functions are still unknown due to their structural complexity and diversity. Therefore, we are investigating efficient synthetic methods for glycans and glycoconjugate derivatives, including the use of enzymes as well as chemical methods. We are also constructing a compound library of alkaloids and heterocyclic compounds, and searching for anti-nematode drugs against pine bark beetles (one of the causes of pine wilt).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Our research targets are biologically active natural organic compounds. Using synthetic organic chemist [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":150,"menu_order":193,"comment_status":"closed","ping_status":"closed","template":"template-layout_single.php","meta":{"footnotes":""},"class_list":["post-1121","page","type-page","status-publish","hentry"],"aioseo_notices":[],"publishpress_future_action":{"enabled":false,"date":"2026-06-26 20:15:58","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/1121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/comments?post=1121"}],"version-history":[{"count":19,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/1121\/revisions"}],"predecessor-version":[{"id":2849,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/1121\/revisions\/2849"}],"up":[{"embeddable":true,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/150"}],"wp:attachment":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/media?parent=1121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}