Browsing Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์ by Title
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Biological activities of synthetic heterocyclic compounds and natural secondary metabolite produced from Boesenbergia rotunda roots actinomyces.
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 1/7/2022)Heterocyclic compounds are often found to be part of the structure of many biologically active substances, including anticancer, antibacterial anti-inflammatory activities. It has also been found to be part of plant growth ... -
Chemical constituents and biological activities from Miliusa sessilis Chaowasku & Kessler
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 10/7/2020)Bioassay-guided fractionation of the hexane and ethyl acetate extracts of the leaves of Miliusa sessilis Chaowasku & Kessler sp. nov. (Annoaceae) led to the isolation of nine new neolignans including four dihydro[b]benzofuran ... -
Design and syntheses of visible and near-infrared fluorescent sensors for copper and fluoride ion detection
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 12/7/2019)Two novel fluorescence sensors were developed for detection of copper and fluoride ions. Sensors I composed of an aza-boron-dipyrromethene (aza-BODIPY) core as near-infrared (NIR) fluorophore covalently bound to two ... -
Design and Syntheses of Fluorescent Sensors based on [5]Helicene Derivatives for Determining Hazard Heavy Metals for the Environmental Protection
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 12/6/2020)Contaminations of hazard heavy metal ions in beverage, food, cosmetic, and environment can lead to various human health problems. Therefore, fluorescent sensors for hazard heavy metal ions with high sensitivity and selectivity ... -
FLUORESCENCE SENSORS BASED ON CORE-SUBSTITUTED NAPHTHALENE DIIMIDE AND Aza-BODIPY FOR RECOGNITION OF METAL IONS
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 12/6/2020)In this work, two new fluorescence probes had been successfully synthesized for detection of Cu2+ based on core-substituted naphthalene diimide and Aza-BODIPY (N1102 and N1004). The probes exhibited ON-OFF fluorescence ... -
Fluorescent Sensors for Determining Metal Ions in Soultion, Flow Injection Analysis and Polymer Membrane
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 10/7/2020)This research is interested in the design and synthesis of near infrared fluorescent sensor, Cy7C3, for determining copper ion in HEPES buffer:acetonitrile (3:7 v/v) at pH 7.0. The detection limit of was found to be 9 ppb ... -
Syntheses of novel ultraviolet-visible and near-infrared fluorescent probes for their applications of ion sensing and petroleum labeling
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 12/6/2020)In this work, four new fluorescence probes were successfully synthesized based on rhodamine B, Aza-BODIPY and indole alkaloid compounds. The compounds offered the absorption and emission in the UV-visible and near-infrared ... -
Synthesis and bioactivity evaluation of 2-substituted indoles
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 10/7/2020)Indoles are heterocylic compounds. It containing pyrrole ring and benzene ring fused to α,β position. Indoles are common substructure in many alkaloids, a biologically accepted pharmacophore, for example, anticancer, ... -
Synthesis and biological activities of Iheyamine A and Geldanamycin derivatives
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 18/6/2021)Iheyamine A is a bis-indole alkaloid isolated from ascidians Polycitorella sp.. Iheyamine A is a heteroaromatic compound consisted of bis-indole fused with an azepine ring and showed moderately anticancer activity against ... -
SYNTHETIC STUDIES AND BIOLOGICAL ACTIVITY OF SPIROINDOLIZIDINE-OXINDOLE AND INDOLIZIDINE ALKALOIDS DERIVATIVE
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(Silpakorn University, 25/11/2022)Spiroindolizidine-oxindole and indoloquinolizidine belong to an important class of alkaloids with variety of structures and biological activites. For example, rhynchophylline and mitraphylline, natural product isolated ... -
การศึกษาการสังเคราะห์และสมบัติทางชีวภาพของอะพอร์ฟีนอัลคาลอยด์,ออกโซอะพอร์ฟีนอัลคาลอยด์ และอัลคาลอยต์ที่เกี่ยวข้องบางชนิด
Collection: Theses (Ph.D) - Organic Chemistry / ดุษฎีนิพนธ์ - เคมีอินทรีย์Type: Thesis(มหาวิทยาลัยศิลปากร, 2008)