01917nam a2200229Ia 4500 CTU_239597 210402s9999 xx 000 0 und d 547 Ph506 8440114 Phan, Minh Phục Phân lập hợp chất tự nhiên từ loài hải miên Xestospongia testudinaria : Luận văn tốt nghiệp Cao học. Chuyên ngành Hóa hữu cơ Phan Minh Phục ; Tôn Nữ Liên Hương (Cán bộ hướng dẫn) Cần Thơ Trường Đại học Cần Thơ 2020 Hải miên Xestospongia testudinaria (3.54 kg) được thu tại tỉnh Kiên Giang và chiết tách hợp chất bằng cồn 96°. Sử dụng một phần cao ethanol (25.0 g) để tiếp tục chiết lỏng-lỏng với các dung môi n-hexane (Hex), dichloromethane (DC), ethyl acetate (EA). Cô quay các dịch chiết phân đoạn và thu đươc bốn loại cao chiết: Hex (2.3g), DC (1.3 g), EA (1.0 g) và phần còn lại là cao H2O (20.0 g). Từ các cao Hex, DC, EA phân lập được 7 hợp chất theo thứ tự là xestosterol, 26,27-dimethyl-24-methylene cholest-4-en-3-one, 3-bromo-5- ethoxy-2-hydroxymethyl tetrahydrofuran, 5-ethoxy-2-hydroxymethyl tetrahydrofuran-3-ol, 3-methyl-maleimide-5-oxime, maleimide-5-oxime, tetillapyrone. Các hợp chất được xác định bằng các phương pháp phổ nghiệm như: 1DNMR, 2D-NMR, ESI-MS và tiến hành so sánh dữ liệu phổ với các tài liệu đã được công bố. Hợp chất hữu cơ,Organic compounds Hải tvtrong Trung tâm Học liệu Trường Đại học Cần Thơ