共查询到20条相似文献,搜索用时 15 毫秒
1.
Ya Juan Xu Tun Hai Xu Jun Ying Yang Sheng Xu Xie Yue Liu Yun Shan Si Dong Ming Xu 《中国化学快报》2010,21(5):580-583
<正>Two new furostanol glycoside,26-O-β-D-glucopyranosyl-(25S)-5α-furost-3β,22α,26-triol-3-O-β-D-rhamnopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→4)]-β-D-galactopyranoside(1) and 26-O-β-D-glucopyranosyl-(25S)-5α-furost-20(22)-en-2α,3β,26-triol-3-O-β-D-glucopyranosyl-(1→2)-O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside(2) were isolated fromthe fruits of Tribulus terrestris L.The structures of two new furostanol saponins were elucidated by spectroscopic methods. 相似文献
2.
两个非对映异构三萜皂甙的结构鉴定 总被引:7,自引:0,他引:7
从合欢皮95%乙醇提取物中分得2个新三糖链九糖皂甙(1,2),经化学方法和光谱分析,将其结构分别鉴定为:3-O-[β-D-吡喃木糖基-(1→2)-β-D-吡喃阿拉伯糖基-(1→6)-β-D-葡萄糖基]-21-O-(6S)-2-反式-2,6-二甲基-6-O-[4-O-((6R)-2-反式-2,6-二甲基-6-O-β-D-吡喃鸡纳糖基-2,7-辛二烯酸基)-β-D-吡喃鸡纳糖基]-2,7-辛二烯酸基金合欢酸28-O-β-D-吡喃葡萄糖基-(1→3)-[α-L-呋喃阿拉伯糖基-(1→4)]-α-L-吡喃鼠李糖基-(1→2)-β-D-吡喃葡萄糖基酯(1)和3-O-[β-D-吡喃阿拉伯糖基-(1→2)-β-D-吡喃呋糖基-(1→6)-β-D-葡萄糖基]-21-O-(6S)-2-反式-2,6-二甲基-6-O-[4-O-((6S)-2-反式-2,6-二甲基-6-O-β-D-吡喃鸡纳糖基-2,7-辛二烯酸基)-β-D-吡喃鸡纳糖基]-2,7-辛二烯酸基金合欢酸28-O-β-D-吡喃葡萄糖基-(1→3)-[α-L-呋喃阿拉伯糖基-(1→4)]-α-L-吡喃鼠李糖基-(1→2)-β-D-吡喃葡萄糖基酯(2),分别命名为合欢皂甙J14(JulibrosideJ14)和合欢皂甙J15(JulibrosideJ15) 相似文献
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宽叶秦岭藤根部的化学成分 总被引:6,自引:0,他引:6
通过正相和反相硅胶柱层析从宽叶秦岭藤根部乙醇提取物中分离纯化得到19个化合物,经波谱分析并结合化学方法鉴定了其结构,其中4个为新化合物,它们分别是3,5-二羟基二十烷酸羽扇豆醇酯(3),2-羟甲基-5-甲氧基苯基-O-β-D-吡喃葡萄糖甙(11),Δ5-孕甾烯-3β,20(S)-二醇-20-O-β-D-吡喃葡萄糖基(1→6)-β-D-吡喃葡萄糖甙(18,秦岭藤甙C)和Δ5-孕甾烯-3β,20(S)-二醇-3-O-β-D-吡喃葡萄糖基-20-O-β-D-吡喃葡萄糖基(1→6)-β-D-吡喃葡萄糖甙(19,秦岭藤甙D). 相似文献
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ZHANG Shuang YANG Rui-jie LI Hong YIN Zong-yuan ZHOU Hong-yu LI Xu-wen JIN Yong-ri YANG Shi-jie 《高等学校化学研究》2010,26(6):915-921
Gross saponins of Tribulus terrestris(GSTT) have exact effect on cardiovascular and cerebrovascular diseases.But as a mixture,the specific efficient component of GSTT is still unknown.Nine monomers of spirostanol saponins were isolated and idendified as JA―JI(named transitorily) by means of NMR spectrometry.After bio-activity screening on them,we defined that monomers tigogenin 3-O-β-D-xylopyranosyl(1→2)-[β-D-xylopyranosyl(1→3)]-β-D-glucopyranosyl(1→4)-[α-L-rhamnopyranosyl(1→2)]-β-D-galactopyranoside(compound JB) and hecogenin3-O-β-D-glucopyranosyl(1→4)-β-D-galactopyranoside(compound JG) have cytoprotective bio-activity.Compound JB display effective dose in 10-8 and 10-9 mol/L,and JG in 10-6―10-9 mol/L.Survival rate,lactate dehydrogenase(LDH) and apoptosis also show that JB(at dose 10-8,10-9 and 10-10 mol/L) can protect myocardial injury caused by hypoxia/reoxygenation(H/R).While morphology change also shows JG has cytoprotective bio-activity. 相似文献
5.
两头尖的化学成分研究(Ⅱ) 总被引:3,自引:0,他引:3
两头尖系毛莨科银莲花属植物多被银莲花(Anemone raddeanaRegel)的干燥根茎,分布于我国东北及山东等地.其味辛性热,具有祛风湿、消痈肿之功效.其总皂苷具有显著的抗肿瘤、抗炎、镇痛、镇静及抗惊厥作用.近年来,国内学者对其化学成分进行了较深入研究,已分离出近20种三萜皂苷类成分以及多种挥发油和多糖类成分.我们从两头尖中分离并鉴定了3个双糖链三萜皂苷化合物,其中化合物1为新化合物.化合物2和3为首次从两头尖中获得的已知化合物. 相似文献
6.
珠子参化学成分分析 总被引:6,自引:0,他引:6
从珠子参根茎中分离得到7个化合物. 利用核磁共振、 质谱和红外等手段, 并结合其理化性质, 鉴定了其结构, 它们分别是24(R)-珠子参苷R1, 6-O-[β-D-吡喃葡萄糖基(1→2)-β-D-吡喃葡萄糖基]-20-O-[β-D-吡喃葡萄糖基(1→4)-β-D-吡喃葡萄糖基]-20(S)-原人参三醇、 6″-乙酰基-人参皂苷Rd、 人参皂苷Rf、 竹节参皂苷Ⅳa、 人参皂苷Rd和竹节参皂苷Ⅴ. 其中, 24(R)-珠子参苷R1和6-O-[β-D-吡喃葡萄糖基(1→2)-β-D-吡喃葡萄糖基]-20-O-[β-D-吡喃葡萄糖基(1→4)-β-D-吡喃葡萄糖基]-20(S)-原人参三醇为2个新化合物, 6″-乙酰基-人参皂苷Rd 和人参皂苷Rf为首次从珠子参根茎中得到. 相似文献
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GUO Shou-jun ZHAO Xin-hua YANG Yong-li CHENG Dong-liang 《高等学校化学研究》2005,21(5):531-535
A diterpenoid trisaccharide, smithoside A, and a saponin, smithoside B, as well as six known compounds, apigenin, apigenin-7-O-glucoside, daucosterol, shanzhiside methyl ester, 8-acetylshanzhiside methyl ester and acteoside, were isolated from Aster smithianus. On the basis of spectral evidence and chemical analytical results, smithosides A and B were identified as pimar-15(16)-β-ene-8β,11α-diol-3β-O-β-D-glucopyranosyl(1→3)-[β-glucopyranosyl(1→2)]-β-D-glucopyranoside and 2β,3β,16β,21β,23-pentahydroxy-12-ene-28 oleanoic acid lactone-3-O-β-D-glucopyranosyl(1→3)-β-D-glucopyranoside, respectively. 相似文献
9.
黄花倒水莲皂甙Reinioside C在大鼠体内代谢产物的鉴定 总被引:3,自引:0,他引:3
为了探讨五环三萜皂甙ReiniosideC在大鼠体内代谢产物的结构,单剂量口服ReiniosideC,5h后放血处死,用制备型高效液相色谱方法对血液和各脏器进行提取分离,从大肠内容物和粪中,分离得到了7种代谢产物.用FAB-MS,1H NMR和13C NMR方法鉴定了它们的结构. 相似文献
10.
Qiao-Shi Lei Yi-Han Zuo Chang-Zhi Lai Jin-Fang Luo Shu-Wen Pang Hua Zhou Xin-Sheng Yao Jin-Shan Tang 《中国化学快报》2017,28(8):1716-1722
Phytochemical investigations from the roots of Cynanchum stauntonii led to obtain four new C_(21) steroidal glycosides(1–4) and one known compound stauntoside F(5). Their chemical structures were characterized by sophisticated analyses of IR, HRESI-TOF-MS, 1D, and 2D-NMR data, together with chemical methods, which showed interesting 13,14:14,15-disecopregnane-type skeleton or 14,15-secopregnane-type skeleton C_(21) steroidal glycosides. Among them, compound 1 was determined to be glaucogenin C 3-O-b-D-glucopyranosyl-(1 → 4)-b-D-cymaropyranosyl-(1 → 4)-b-D-digitoxopyranosyl-(1 → 4)-b-D-thevetopyranoside. Compound 2 was characterized to be hirundigenin 3-O-a-L-diginopyranosyl-(1 → 4)-b-D-cymaropyranosyl-(1 → 4)-b-D-digitoxopyranosyl-(1 → 4)-b-D-30-demethyl-thevetopyranoside. Compound 3 was identified to be(14S,16 S,20R)-14,16-14,20-15,20-triepoxy-14,15-secopregn-5-en-3-ol-3-O-a-L-cymaropyranosyl-(1 → 4)-b-D-digitoxopyranosyl-(1 → 4)-b-D-oleandropyranoside.Compound 4 was identified to be(14S,16 S,20R)-14,16-14,20-15,20-triepoxy-14,15-secopregn-5-en-3-ol-3-O-a-L-cymaropyranosyl-(1 → 4)-b-D-cymaropyranosyl-(1 → 4)-b-D-digitoxopyranosyl-(1 → 4)-b-Dthevetopyranoside. Among them, compound 2 was hirundigenin type C21 steroidal glycoside that existed in nature as epimers due to the presence of 14-hemiketal hydroxyl group in its structure. In addition, the anti-inflammatory and cardiomyocyte protective effects of compounds 1–4 were evaluated. We found that they exhibited significant protective effects on hypoxia/reoxygenation induced cardiomyocyte injury, but did not showed obvious anti-inflammatory function. 相似文献
11.
从新鲜人参根中分离得到了1个新化合物, 根据理化性质和谱学方法并与文献报道的相关化合物的数据进行比较, 鉴定其结构为丙二酰基三七人参皂苷-R4(Malonyl-notoginsenoside-R4, 1). 相似文献
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A new triterpenoid glycoside(1) and seven known triterpenoid glycosides, pseudoginsenoside RT2(2), yesanchinoside R2(3), vinaginsenoside R13(4), vinaginsenoside R8(5), notoginsenoside E(6), 6'-O-acetylginsenoside Re(7), 6"-O-acetylginsenoside Rb1(8), were isolated from the rhizomes of Panacis majoris. The new triterpenoid glycoside was elucidated as 3-O-[β-D-glucopyranosyl-(1→2)-β-D-(6'-O-ethyl)-glucuronopyranosyl]-oleanolic acid-28-O-β-D-glucopyranoside by extensive spectroscopic and phytochemical methods. Compounds 2-8 were obtained from the plant for the first time. Compounds 3 and 4 displayed good activities against adenosine diphosphate (ADP)-induced platelet aggregation, and compounds 1, 5, 6 and 8 showed moderate activities. Compound 6 exhibited moderate antiplatelet aggregation activity induced by arachidonic acid(AA). 相似文献
14.
<正>One new dammarane-type triterpene saponin,named(20S)-3β,20,21-trihydroxydammar-24-ene 3-O-[α-L-rhamnopyranosyl- (1→2)][β-D-xylopyranosyl(1→3)]-β-D-glucopyranoside(1),was isolated from the aerial parts of Gynostemma pentaphyllum (Thunb.) Makino.Its structural elucidation was accomplished mainly on the basis of the interrelation of spectroscopic methods, such as IR,HR-TOF-MS,NMR. 相似文献
15.
Wei Li YANG Jun TIAN Qiang ZHANG Shu Lin PENG Li Sheng DING* Chengdu Institute of Biology Chinese Academy of Sciences Chengdu School of Pharmacy West China University of Medical Sciences Chengdu 《中国化学快报》2001,(2)
There are only three species in the genus Diuranthera (Liliaceae), which is endemic in the southwest of China1. Four steroidal saponins, diuranthosides A-C and chloromalo-side A were isolated from the fresh roots of D. major. This paper deals with the structure elucidation of two new steroidal saponins, diuranthosides D and E, which were isolated from the methanolic extract of whole plant of D. inarticulata Wang et K. Y. Lang.Diuranthoside D (1), [(]-38 (c 0.08, pyridine), afforded galac… 相似文献
16.
A new steroidal sapogenin named 25-R-spirosta-3,5-dien-12β-ol(1) was isolated from the dried roots of Chlorophytum laxum R. Br. along with five known compounds, namely, diosgenin(2), stigmasterol(3), β-sitosterols(4), estigmasterol-3-O-β-D-glicopyranoside(5) and 3-O-β-authemisol(6). The structure of compound 1 was elucidated by the analysis of IR, HRESI-MS, 1D and 2D NMR spectral data. Compounds 2-5 were isolated from Chlorophytum laxum R. Br. In addition, all the compounds were evaluated for cytotoxicity on the human nasopharyngeal carcinoma cancer cell line 5-8F. Among them, the newly identified 25-R-spirosta-3,5-dien-12β-ol(1) and diosgenin(2) exhibited high cytotoxicity on 5-8F cells, with IC50 values of 24.8 and 41.9 μmol/L, respectively. 相似文献
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SHEN Hai-yan WANG Hui ZUO Wen-jian ZHAO You-xing LUO Ying MEI Wen-li DAI Hao-fu 《高等学校化学研究》2013,29(3):483-486
A new phenylpropanoid glycoside, named cambodianin F(1), together with three known compounds, 1-O-β-D-glucopyranosyl-2-hydroxy-4-allylbenzene(2), 1-O-(6-O-α-L-rhamnopyranosyl-β-D-glucopyranosyl)-2-hydroxy-4-allylbenzene(3) and 1,2-di-O-β-D-glucopyranosyl-4-allylbenzene(4) was isolated from the dragon's blood of Dracaena cambodiana. The new compound was elucidated by HR-ESI-MS and spectroscopic techniques(UV, IR, 1D and 2D NMR). 相似文献
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Ying Zhao Ling Mei Sun Xiao Ning Wang Tao Shen Mei Ji Xia Li Hong Xiang Lou 《中国化学快报》2010,21(1):76-80
<正>Microbial transformation of diosgenin(1) by Syncephalastrum racemosum yielded five new polar metabolites,which wereidentified as(25R)-spirost-5-en-3β,7α,9α-triol-12-one(2),(25R)-spirost-5-en-3β,9α,12α-triol-7-one(3),(25R)-spirost-5-en-3β,9α-diol-7,12-dione(4),(25R)-spirost-4-en-9α,12β,14α-triol-3-one(5),and(25S)-spirost-4-en-9α,14α,25β-triol-3-one(6).Compounds 1-6 exhibited moderate cytotoxicity against K562 cells and among them compounds 2,3,and 6 were more potentthan the parent compound 1. 相似文献
20.
南海短足软珊瑚Cladiella sp.中两个新孕甾醇苷的分离 总被引:2,自引:0,他引:2
从短足软珊瑚Cladiella sp.中,分离得到3个甾类化合物:孕甾-5,20-二烯-3β-醇-3-O-α-L-吡喃岩藻糖苷(1)、孕甾-5,20-二烯-3β-醇-3-O-β-D-吡喃木糖苷(2)和(22E,24R)-麦角甾-7,22-二烯-3β,5α,6β-三醇(3),其中1和2为新化合物.孕甾醇苷具有抗早孕和抑制肿瘤细胞生长活性. 相似文献