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香港鹰爪花中倍半萜类化学成分研究

2017-09-09吴水玲刘艳萍陈光英韩长日

中国中药杂志 2017年16期
关键词:倍半萜化学成分

吴水玲 刘艳萍 陈光英 韩长日

[摘要]综合运用正相硅胶柱色谱、Sephadex LH20凝胶柱色谱、反相ODS柱色谱以及制备型高效液相色谱等现代色谱分离技术和方法,对番荔枝科鹰爪花属植物香港鹰爪花Artabotrys hongkongensis枝叶中的化学成分进行系统研究。根据化合物的理化性质和波谱数据,并通过与文献对照,鉴定了从香港鹰爪花枝叶的90%乙醇提取物的石油醚萃取部位中分離得到的16个倍半萜类化合物,分别鉴定为:blumenol A (1),4, 5dihydroblumenol A (2),(6R, 9S)3oxoaionol (3),3hydroxyβionone (4),dehydrovomifoliol (5),(3R, 6R, 7E) 3hydroxy4, 7megastigmadien9one (6),sarmentol F (7),10oxoisodauc3en15oic acid (8),fukinone (9),petasitolone (10),βeudesmol (11),trans3β(1hydroxy1methylethyl) 8aβmethyl5methylenedecalin2one (12),10hydroxyaristolan9one (13),aristol8en1one (14),aristolan9en1one (15),aristolan1, 9diene (16)。该研究首次对香港鹰爪花的化学成分进行了系统研究,所有分离得到的化合物均为首次从鹰爪花属植物中分离得到。

[关键词]番荔枝科; 鹰爪花属; 香港鹰爪花; 化学成分; 倍半萜

Sesquiterpenes from Artabotrys hongkongensis

WU Shuiling1, LIU Yanping1, CHEN Guangying1, HAN Changri1, SONG Xiaoping1, ZHONG Xia2*, FU Yanhui1*

(1 Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University,

Haikou 571158, China;

2 College of Pharmacy, Hainan Medical University, Haikou 571199, China)

[Abstract]The chemical consituents from Artabotrys hongkongensis were separated and purified by column chromatographies with silica gel, Sephadex LH20, ODS and RPHPLC The structures of the isolated compounds were identified on the basis of physicochemical properties and spectroscopic analysis, as well as comparisons with the data reported in the literature As a result, 16 sesquiterpenes were isolated and elucidated as blumenol A (1), 4, 5dihydroblumenol A (2), (6R, 9S)3oxoaionol (3), 3hydroxyβionone (4), dehydrovomifoliol (5), (3R, 6R, 7E) 3hydroxy4, 7megastigmadien9one (6), sarmentol F (7), 10oxoisodauc3en15oic acid (8), fukinone (9), petasitolone (10), βeudesmol (11), trans3β(1hydroxy1methylethyl) 8aβmethyl5methylenedecalin2one (12), 10hydroxyaristolan9one (13), aristol8en1one (14), aristolan9en1one (15), and aristolan1, 9diene (16) This is the first study on the chemical consituents of A hongkongensis, and all compounds were isolated from the genus Artabotrys for the first time

[Key words]Annonaceae; Artabotrys; Artabotrys hongkongensis; chemical constituents; sesquiterpenes

番荔枝科 Annonaceae鹰爪花属Artabotrys植物全世界约有100种,分布于热带和亚热带地区,分布于我国的有4种,分布于西南部至东南部[1]。在民间,鹰爪花属植物作为药用植物历史悠久,具有清热解毒、消炎止痛的功效,常用于治疗疟疾和头颈部淋巴结核等。现代药理学研究表明该属植物具有广泛的生物活性,如抗肿瘤、抗菌、抗疟以及杀虫活性等[26]。香港鹰爪花A hongkongensis为番荔枝科鹰爪花属植物,主产于我国海南、广东、广西、云南和贵州等地。迄今为止,尚未见到有关香港鹰爪花中化学成分及其生物活性的研究报道,本课题组在前期研究中发现香港鹰爪花枝叶的乙醇提取物对A549 (人肺癌细胞株),LOVO (人肠癌细胞株),6TCEM (人T 细胞白血病细胞株) 以及QGY7703 (人肝癌细胞株) 等4种人肿瘤细胞株均有较显著的体外增殖抑制作用,尤其是对LOVO和QGY7703的抑制作用最为明显,其IC50 分别达到28,52 mg·L-1。为进一步开发利用鹰爪花属药用植物资源,阐明其药效物质基础,本研究对采自海南的香港鹰爪花枝叶的化学成分进行了系统研究。综合运用正相硅胶柱色谱、Sephadex LH20凝胶柱色谱、反相ODS柱色谱以及制备型高效液相色谱等现代色谱分离技术从香港鹰爪花枝叶的90%乙醇提取物的石油醚萃取部位中分离得到了16个化合物,通过理化性质及光谱学方法确定了这些化合物的化学结构,分别鉴定为blumenol A (1),4,5dihydroblumenol A (2),(6R,9S)3oxoaionol (3),3hydroxyβionone (4),dehydrovomifoliol (5),(3R,6R,7E) 3hydroxy4,7megastigmadien9one (6),sarmentol F (7),10oxoisodauc3en15oic acid (8),fukinone (9),petasitolone (10),βeudesmol (11),trans3β(1hydroxy1methylethyl)8aβmethyl5methylenedecalin2one (12),10hydroxyaristolan9one (13),aristol8en1one (14),aristolan9en1one (15),aristolan1,9diene (16)。本研究首次对香港鹰爪花的化学成分进行了系统研究,所有分离得到的化合物均为首次从鹰爪花属植物中分离得到。endprint

1材料

Bruker AV400 型超导核磁共振仪 (德国布鲁克公司);Finnigan LCQ Advantage MAX 质谱仪 (美国热电公司);Agilent 1200 分析型高效液相色谱仪 (美国安捷伦科技有限公司);Cosmosil C18分析型色谱柱 (4 6 mm×250 mm,5 μm);Dionex制备型高效液相色谱仪(美国戴安公司);Cosmosil C18制备型色谱柱 (20 mm×250 mm,5 μm);中低压制备色谱 (瑞士Buchi公司);薄层硅胶GF254和柱色谱硅胶 (青岛海洋化工厂);Sephadex LH20 (Amersham Blosclences公司);ODS 柱色谱材料 (C18,10~40 μm,Merck公司);4001N电子天平 (上海民桥精密科技仪器有限公司);BSZ100自动部分收集器 (上海青浦沪西仪器有限公司);紫外分析暗箱YOKOZX (武汉药科新技术开发有限公司);旋转蒸发仪 (日本EYELA公司 N1001型);所用试剂均为分析纯试剂。

香港鹰爪花叶于2015年8月采集于海南省乐东县尖峰岭国家森林公园,经海南师范大学生命科学学院钟琼芯教授鉴定为番荔枝科鹰爪花属植物香港鹰爪花A hongkongensis的枝叶,凭证标本 (FU20150801) 保存于海南师范大学热带药用植物化学教育部重点实验室标本室。

2提取与分离

香港鹰爪花的干燥枝叶126 kg,粉碎后,用90%乙醇冷浸提取3次,每次提取1周,提取液减压浓缩至无醇味,得总浸膏12 kg。总浸膏加水混悬,依次分别用石油醚和乙酸乙酯进行萃取,回收溶剂后得石油醚萃取部位2826 g和乙酸乙酯萃取部位3527 g。取石油醚萃取部位2800 g加粗硅胶 (100~200目) 拌样,上样于硅胶 (200~300目) 色谱柱,以石油醚丙酮 (100∶0~50∶50) 梯度洗脱得到6个流分 (Fr 1~Fr 6)。Fr 2 (238 g) 经硅胶柱色谱分离,用石油醚乙酸乙酯 (90∶10~50∶50) 梯度洗脱,得到6个亚流分 (Fr 2A~2F)。Fr2B经Sephadex LH20 (氯仿甲醇1∶1) 纯化,再经制备型HPLC (甲醇水80∶20) 分离得到化合物1 (438 mg),6 (223 mg),9 (569 mg);Fr2C用Sephadex LH20 (氯仿甲醇1∶1) 纯化,再经制备型HPLC (甲醇水 75∶25)制备得到化合物2 (216 mg),8 (128 mg),11 (239 mg)。Fr 3 (326 g) 经反相ODS柱色谱分离,甲醇水 (50∶50~100∶0) 梯度洗脱,得到7个亚流分 (Fr3A~3G)。Fr3B经Sephadex LH20 (氯仿甲醇1∶1)纯化后,再经制备型HPLC (甲醇水75∶25) 制备得到化合物3 (96 mg),10 (548 mg),13 (236 mg);Fr3C经硅胶柱色谱分离,用石油醚乙酸乙酯 (90∶10~50∶50) 进行梯度洗脱,洗脱流分经Sephadex LH20 (氯仿甲醇1∶1) 纯化后,再经制备型HPLC (甲醇水 70∶30) 分离得到化合物4 (158 mg),12 (1082 mg),15 (687 mg);Fr3D经硅胶柱色谱分离,用石油醚乙酸乙酯 (80∶20~50∶50) 进行梯度洗脱,洗脱流分经Sephadex LH20 (氯仿甲醇1∶1) 纯化后,再经制备型HPLC (甲醇水 65∶35) 分离得到化合物5 (212 mg),7 (119 mg),14 (339 mg),16 (168 mg)。

3结构鉴定

化合物1白色无定形粉末;C13H20O3,ESIMS m/z 225 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 588 (1H,s,H4),579 (1H,d,J=158,56 Hz,H8),573 (1H,d,J=158 Hz,H7),435 (1H,m,H9),241 (1H,d,J=168 Hz,H2a),216 (1H,d,J=168 Hz,H2β),188 (3H,d,J=12 Hz,H13),125 (3H,d,J=66 Hz,H10),102 (3H,s,H12),096 (3H,s,H11); 13CNMR (CDCl3,100 MHz) δ: 1988 (C3),1640 (C5),1359 (C8),1289 (C7),1268 (C4),792 (C6),679 (C9),499 (C2),414 (C1),242 (C10),239 (C12),229 (C11),193 (C13)。以上數据与文献中报道的数据对比[7],故鉴定化合物1为blumenol A。

化合物2白色无定形粉末;C13H22O3,ESIMS m/z 227 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 569 (1H,dd,J=158,56 Hz,H8),558 (1H,d,J=158 Hz,H7),429 (1H,m,H9),272 (1H,d,J=136 Hz,H2a),228 (1H,d,J=128 Hz,H4a),216 (1H,m,H5),208 (1H,d,J=128 Hz,H4β),181 (1H,d,J=136 Hz,H2β),118 (3H,d,J=64 Hz,H10),086 (3H,s,H12),082 (3H,s,H11),076 (3H,d,J=58 Hz,H13); 13CNMR (CDCl3,100 MHz) δ: 2122 (C3),1352 (C8),1313 (C7),767 (C6),679 (C9),513 (C2),449 (C4),424 (C1),363 (C5),248 (C12),242 (C11),236 (C10),158 (C13)。以上数据与文献中报道的数据对比[8],故鉴定化合物2为4,5dihydroblumenol A。endprint

化合物3白色无定形粉末;C13H20O2,ESIMS m/z 209 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 591 (1H,s,H4),563 (1H,dd,J=158,63 Hz,H8),552 (1H,dd,J=158,88 Hz,H7),251 (1H,d,J=88 Hz,H6),428 (1H,m,H9),232 (1H,d,J=158 Hz,H2a),202 (1H,d,J=158 Hz,H2β),191 (3H,s,H13),127 (3H,d,J=66 Hz,H10),099 (3H,s,H12),093 (3H,s,H11); 13CNMR (CDCl3,100 MHz) δ: 1996 (C3),1623 (C5),1388 (C8),1267 (C4),1260 (C7),685 (C9),556 (C6),476 (C2),364 (C1),279 (C12),272 (C11),240 (C10),2368 (C13)。以上数据与文献中报道的数据对比[9],故鉴定化合物3为(6R,9S)3oxoaionol。

化合物4白色无定形粉末;C13H20O2,ESIMS m/z 209 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 721 (1H,d,J=168 Hz,H7),615 (1H,d,J=168 Hz,H8),406 (1H,m,H3),248 (1H,dd,J=168,80 Hz,H4a),229 (3H,s,H10),208 (1H,dd,J=168,100 Hz,H4β),179 (1H,m,H2a),176 (3H,s,H13),148 (1H,t,J=118 Hz,H2β),109 (3H,s,H12),106 (3H,s,H11); 13CNMR (CDCl3,100 MHz) δ: 1982 (C9),1419 (C7),1353 (C6),1322 (C8),1320 (C5),6432 (C3),481 (C2),423 (C4),365 (C1),299 (C11),282 (C12),273 (C10),212 (C13)。以上数据与文献中报道的数据对比[10],故鉴定化合物4为3hydroxyβionone。

化合物5无色油状物;C13H18O3,ESIMS m/z 223 [M+H]+; 1HNMR (CD3OD,400 MHz) δ: 701 (1H,d,J=158 Hz,H7),628 (1H,d,J=158 Hz,H8),591 (1H,s,H4),266 (1H,d,J=168 Hz,H2α),231 (3H,s,H10),221 (1H,d,J=168 Hz,H2β),183 (3H,s,H11),100 (3H,s,H12),096 (3H,s,H13); 13CNMR (CD3OD,100 MHz) δ: 1982 (C3),1970 (C9),1617 (C5),1469 (C7),1305 (C8),1266 (C4),779 (C6),493 (C2),412 (C1),273 (C10),242 (C12),233 (C13),186 (C11)。以上數据与文献中报道的数据对比[11],故鉴定化合物5为dehydrovomifoliol。

化合物6白色无定形粉末;C13H20O2,ESIMS m/z 209 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 656 (1H,dd,J=158,96 Hz,H7),609 (1H,d,J=158 Hz,H8),566 (1H,br t,J=16 Hz,H4),249 (1H,d,J=98 Hz,H6),138 (1H,dd,J=136,68 Hz,H2a),229 (3H,s,H10),186 (1H,dd,J=136,68 Hz,H2β),168 (3H,s,H13),103 (3H,s,H11),089 (3H,s,H12); 13CNMR (CDCl3,100 MHz) δ: 1983 (C9),1474 (C7),1358 (C5),1338 (C8),1259 (C4),659 (C3),546 (C6),439 (C2),342 (C1),296 (C11),275 (C10),250 (C12),229 (C13)。以上数据与文献中报道的数据对比[12],故鉴定化合物6为(3R,6R,7E)3hydroxy4,7megastigmadien9one。

化合物7白色无定形粉末;C13H24O2,ESIMS m/z 213 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 545 (1H,dd,J=156,68 Hz,H8),524 (1H,dd,J=156,98 Hz,H7),427 (1H,m,H9),373 (1H,m,H3),198 (1H,m,H2a),179 (1H,m,H4a),170 (1H,m,H4β),146 (1H,m,H5),128 (1H,dd,J=109,98 Hz,H6),124 (3H,d,J=64 Hz,H10),120 (1H,dd,J=124,124 Hz,H2β),088 (3H,s,H12),083 (3H,s,H11),079 (3H,d,J=68 Hz,H13); 13CNMR (CDCl3,100 MHz) δ: 1375 (C8),1307 (C7),692 (C9),670 (C3),572 (C6),505 (C2),449 (C4),349 (C1),313 (C12),310 (C5),239 (C10),216 (C11),214 (C13)。以上数据与文献中报道的数据对比[13],故鉴定化合物7为sarmentol F。

化合物8无色油状物;C15H22O3,ESIMS m/z 251 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 696 (1H,d,J=48 Hz,H4),283 (1H,m,H1a),279 (1H,m,H2a),258 (1H,m,H2β),247 (1H,m,H1β),239 (1H,dd,J=86,48 Hz,H5),214 (1H,m,H8a),185 (1H,m,H7a),179 (1H,m,H6),163 (1H,m,H11),139 (1H,m,H7β),136 (1H,m,H8β),128 (3H,s,H14),092 (3H,d,J=68 Hz,H12),089 (3H,d,J=68 Hz,H13); 13CNMR (CDCl3,100 MHz) δ: 2125 (C10),1690 (C15),1509 (C4),1328 (C3),595 (C9),559 (C6),530 (C5),396 (C1),350 (C8),328 (C11),272 (C7),251 (C14),2300 (C2),218 (C13),200 (C12)。以上数据与文献中报道的数据对比[14],故鉴定化合物8为10oxoisodauc3en15oic acid。endprint

化合物9无色油状物;C15H24O,ESIMS m/z 221 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 259 (1H,d,J=148 Hz,H9a),239 (1H,dd,J=163,108 Hz,H6a),208 (1H,dd,J=163,58 Hz,H6β),186 (1H,d,J=148 Hz,H9β),179 (3H,s,H12),175 (1H,m,H10),165 (3H,s,H13),159 (2H,m,H1),139 (1H,m,H4),138 (2H,m,H2),116 (2H,m,H3),086 (3H,s,H15),075 (3H,d,J=68 Hz,H14); 13CNMR(CDCl3,100 MHz) δ: 2058 (C8),1398 (C7),1309 (C11),441 (C9),413 (C10),406 (C6),367 (C5),323 (C4),299 (C3),269 (C2),225 (C15),215 (C12),215 (C13),205 (C1),161 (C14)。以上数据与文献中报道数据对比[15],故鉴定化合物9为fukinone。

化合物10白色无定形粉末;C15H24O2,ESIMS m/z 237 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 669 (1H,s,H6),352 (1H,s,11OH),268 (1H,dd,J=172,126 Hz,H9a),227 (1H,dd,J=172,46 Hz,H9β),205 (1H,m,H10),156 (1H,m,H4),139 (6H,s,H12,13),133~177 (6H,m,H1~3),109 (3H,s,H15),0 89 (3H,d,J=68 Hz,H14); 13CNMR(CDCl3,100 MHz) δ: 2029 (C8),1551 (C6),1412 (C7),720 (C11),409 (C9),396 (C10),388 (C5),360 (C4),304 (C3),296 (C12),294 (C13),269 (C2),209 (C15),206 (C1),159 (C14)。以上數据与文献中报道的数据对比[16],故鉴定化合物10为petasitolone。

化合物11白色无定形粉末;C15H28O,ESIMS m/z 225 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 476 (1H,s,H11a),448 (1H,s,H11β),235 (1H,m,H3a),199 (1H,m,H3β),180 (1H,m,H5),167 (2H,m,H2),156 (2H,m,H1),148 (2H,m,H9),139 (1H,m,H7),129 (2H,m,H8),125 (6H,s,H13,14),117 (2H,m,H6),073 (3H,s,H15); 13CNMR (CDCl3,100 MHz) δ: 1513 (C4),1054 (C11),729 (C12),500 (C7),496 (C5),420 (C9),410 (C1),370 (C3),361 (C10),273 (C14),272 (C13),249 (C6),236 (C2),226 (C8),165 (C15)。以上数据与文献中报道的数据对比[17],故鉴定化合物11为βeudesmol。

化合物12白色无定形粉末;C15H26O2,ESIMS m/z 239 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 488 (1H,s,H11a),456 (1H,s,H11β),249 (1H,m,H7),239 (1H,m,H3a),238 (1H,m,H5),233 (1H,d,J=99 Hz,H9a),219 (1H,d,J=98 Hz,H9β),208 (1H,m,H6a),206 (1H,m,H3β),1669 (1H,m,H6β),165 (1H,m,H2a),154 (1H,m,H2β),149 (2H,m,H1),130 (3H,s,H14),128 (3H,s,H13),073 (3H,s,H15); 13CNMR (CDCl3,100 MHz) δ: 2148 (C8),1486 (C4),1075 (C11),716 (C12),590 (C7),569 (C9),485 (C5),413 (C1),409 (C10),367 (C3),288 (C13),282 (C6),256 (C14),229 (C2),172 (C15)。以上数据与文献中报道的数据对比[1718],故鉴定化合物12为trans3β(1hydroxy1methylethyl)8aβmethyl5methylenedecalin2one。

化合物13无色油状物;C15H24O2,ESIMS m/z 237 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 310 (1H,dd,J=168,88 Hz,H8β),228 (1H,d,J=168 Hz,H8α),189 (1H,m,H1β),166 (1H,m,H2β),158 (1H,m,H2α),148 (1H,m,H4),140 (1H,m,H1α),122133 (3H,m,H3,H7),119 (3H,s,H15),108 (3H,s,H13),106 (3H,s,H12),096 (3H,d,J=68 Hz,H14),078 (1H,d,J=88 Hz,H6); 13CNMR (CDCl3,100 MHz) δ: 2160 (C9),778 (C10),469 (C5),349 (C4),346 (C8),308 (C13),296 (C1),290 (C3),289 (C6),230 (C7),229 (C2),209 (C11),185 (C15),171 (C14),169 (C12)。以上数据与文献中报道的数据对比[19],故鉴定化合物13为10hydroxyaristolan9one。endprint

化合物14无色油状物;C15H22O,ESIMS m/z 219 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 599 (1H,m,H8),585 (1H,dd,J=98,20 Hz,H9),257 (1H,br s,H10),235 (2H,m,H2),195 (1H,m,H4),192 (1H,m,H3β),170 (1H,m,H3α),122 (1H,dd,J=86,56 Hz,H7),115 (3H,s,H13),103 (3H,d,J=68 Hz,H14),099 (3H,s,H12),081 (1H,d,J=86 Hz,H6),055 (3H,s,H15); 13CNMR (CDCl3,100 MHz) δ: 2100 (C1),1274 (C8),1189 (C9),548 (C10),406 (C2),402 (C4),393 (C5),352 (C6),306 (C13),315 (C3),260 (C11),248 (C7),162 (C12),160 (C15),156 (C14)。以上数据与文献中报道的数据对比[19],故鉴定化合物14为aristol8en1one。

化合物15无色油状物;C15H22O,ESIMS m/z 219 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 639 (1H,m,H9α),256 (1H,m,H 8β),248 (1H,m,H2β),235 (1H,m,H8α),230 (1H,m,H2α),201 (1H,m,H4),174 (2H,m,H3),108 (3H,s,H13),105 (3H,d,J=68 Hz,H14),104 (3H,s,H12),100 (3H,s,H15),088 (1H,m,H7),069 (1H,d,J=96 Hz,H6); 13CNMR (CDCl3,100 MHz) δ: 2019 (C1),1434 (C10),1323 (C9),399 (C2),376 (C5),358 (C4),319 (C6),296 (C13),277 (C3),225 (C15),223 (C8),192 (C7),187 (C11),152 (C14),151 (C12)。以上数据与文献中报道的数据对比[19],故鉴定化合物15为aristolan9en1one 。

化合物16无色油状物;C15H22O,ESIMS m/z 203 [M+H]+; 1HNMR (CDCl3,400 MHz) δ: 528 (1H,m,H9),591 (1H,d,J=96 Hz,H1),256 (1H,dd,J=198,69 Hz,H8β),222 (1H,dd,J=198,52 Hz,H8α),556 (1H,dd,J=96,56 Hz,H2),199 (1H,m,H3β),189 (1H,dd,J=184,112 Hz,H3α),106 (3H,m,H13),102 (3H,m,H12),100 (3H,d,J=69 Hz,H14),097 (3H,s,H15),079 (1H,dd,J=92,69 Hz,H7),068 (1H,d,J=92 Hz,H6); 13CNMR (CDCl3,100 MHz) δ: 1406 (C10),1289 (C1),1253 (C2),1228 (C9),352 (C5),340 (C4),322 (C3),315 (C6),300 (C13),225 (C8),212 (C15),198 (C7),184 (C11),152 (C14),151 (C12)。以上數据与文献中报道的数据对比[19],故鉴定化合物16为aristolan1,9diene。

4结果与讨论

倍半萜类化合物是一类重要的天然化合物类群,骨架类型丰富,生物活性广泛,尤其是在抗肿瘤活性方面表现尤为突出,是天然抗肿瘤药物的重要来源之一[2021]。本研究首次从香港鹰爪花中分离得到 16个倍半萜类化合物,所有化合物均为首次从鹰爪花属植物中分离得到,有研究报道其中部分化合物表现出了较为显著的抗肿瘤活性。以上研究结果不仅表明香港鹰爪花可以作为倍半萜类化合物的重要来源,而且也说明倍半萜类化合物是香港鹰爪花具有显著的抗肿瘤活性的重要物质基础,可为香港鹰爪花药用价值的进一步的开发和利用提供科学依据。

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[责任编辑丁广治]endprint

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