关键词: 剑叶凤尾蕨, 化学成分, 结构鉴定, 抗肿瘤活性, 抗凝血活性

Abstract: To study the chemical constituents of Pteris ensiformis, silica gel, gel, MCI, C₁₈ and other column chromatography were used for separation and purification, and their structures were identified by ¹H-NMR, ¹³C-NMR, MS, IR and othe spectral data; the anti-tumor and anti-coagulation activities of some monomers were screened by MTS, APTT, PT and TT. The results were as follows:(1)A total of 15 compounds were isolated from P. ensiformis, the compounds were 2-hydroxy-acetylpyrrole(1), N-(3-carboxypropyl)-2-acetylpyrrole(2), 3-hydroxy-2-methylpyridine(3), N-methylhydroxylamine(4), pterosin S 13-O-glucoside(5), obtupterosin C(6), ent-11α-hydroxy-15-oxokauran-19-oic acid(7), ent-11α-hydroxy-15-oxokaur-16-en-19-oic acid(8), β-sitosterol(9), ent-11α-hydroxy-15-oxokaur-16-en-19-oic acid-O-glucopyranoside(10), 5, 5'-dibutoxy-2, 2'-bifuran(11), 5, 5'-di(2-ethyl-hexyloxy)-2, 2'-bifuran(12),(-)-loliolide(13), succinic acid(14), fumaric acid(15). Compound 1 is a new natural product of pyrrole alkaloids. Compounds 1-7, 10-15 were isolated from P. ensiformis for the first time, and compounds 1, 3, 4 were isolated from Pteris for the first time.(2)The results of activity test showed that compounds 1, 2, 3, 5, 6 and 10 inhibited the growth of tumor cells HL-60, A549, SMMC-7721, MDA-MB-231 and SW480 in vitro at a concentration of 40 μmol·L^-1, At the concentration of 2.0 mmol·L^-1, compounds 1, 2, 3 and 6 shortened APTT and compounds 1, 5 and 6 prolonged PT. The study enriches the chemical constituents of P. ensiformis from Guizhou and provides a material basis for the development of anti-tumor drugs.

Key words: Pteris ensiformis, chemical constituent, structural identification, anti-tumor activity, anticoagulant activity