查询词典 betulinic
- 与 betulinic 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Results Ten known constituents were isolated and their structures were identified as 23-hydroxyursoIic acid (1), alphitolic acid (2), ursolic acid (3), dihydro-β-cyclopyrethrosin (4), sesamin (5),β-sitosterol (6), clauslactone-K (7), betulinic acid (8), lingueresinol (9), ent-isolariciresinol (10), respectively.
结果:从上述三种植物中共分离鉴定了10个化合物,其分别是:23-羟基熊果酸(1)、alphitolic acid(2)、熊果酸(3)、二氢-B-环除虫菊精(4)、芝麻素(5)、β-谷甾醇(6)、clauslactone-K(7)、白桦脂酸(8)、lingueresinol(9)和ent-isolariciresinol(10)。
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In the white part of birch bark there are other medical substances: betulinic acid, b - sitosterol, flavonoids, lupeleol and other.
在白桦树皮还有部分医疗药物:桦木酸、乙-谷甾醇、黄酮类、lupeleol等。
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Results Eleven compounds were purified and their structures were identified, they were identified as β-sitosterol, stigmasterol, nonacosanyl caffeate, daucosterol, betulinic acid, vanillic acid, inositol methyl ether, sucrose, soyasaponin Ⅰ, kaikasaponin Ⅲ, and dehy-drosoyasaponin Ⅰ.
结果 分得11个已知化合物,经鉴定为β-谷甾醇、豆甾醇、咖啡酸二十九醇酯、胡萝卜苷、白桦酸、香草酸、肌醇甲醚、蔗糖、soyasaponin Ⅰ、kaikasaponin Ⅲ和dehy-drosoyasaponin Ⅰ。
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Betulin and betulinic acid are remarkable natural products. They are obtained from a variety of botanical sources.
白桦酯醇和白桦酯酸是非常有价值的天然产物,它们可以从丰富的植物资源中获得。
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It is significant to study the pharmaceutical activities of betulin ,betulinic acid andtheir derivatives and to confirm the relationship between th...
研究白桦脂醇、白桦脂酸及其衍生物的药理活性,确定结构与活性间的关系,对筛选出更为经济、有效的药物成分具有重要意义。
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They are obtained from avariety of botanical sources and betulinic acid can be easily prepared from the more plentifulprecursor betulin in a simple two-step process.
它们可以从丰富的植物资源中获得,白桦脂酸也可由更丰富的前体白桦脂醇经简单的两步制得。
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Betulin and betulinic acid are remarkable natural products.
白桦脂醇和白桦脂酸是非常有价值的天然产物。
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Betulin, betulinic acid and many of their derivatives exhibit great promise as bioactive agents for the treatment of HIV infection and cancer.
白桦酯醇、白桦酯酸及其衍生物作为生物制剂在HIV和癌症治疗方面表现出了巨大的潜能。
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The current developments were summarized and the research contents of this thesis were described.In the second chapter, a simple procedure is described for the simultaneous extraction and determination of betulin and betulinic acid in white birch bark. To compare extraction efficiency, effect of white birch bark growing in different locations and different extract solvents on the content of betulin and betulinic acid were evaluated.
第二章建立了一种简单、准确度、灵敏度高和重现性好的RP-HPLC同时测定白桦树皮中白桦酯醇和白桦酯酸含量的方法,并用这种方法研究了提取溶剂以及产地对树皮中白桦酯醇和白桦酯酸的含量影响,确定了最佳的提取工艺。
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Furthermore, the ability of betulinic acid to induce apoptosis in melanoma and other cell types and the favoral therapeutic index suggests that betulinic acid is an attractive and promising antitumor agent.
虽然白桦酯酸存在于很多植物种类中,但其普遍含量很低,由于其巨大的研究价值,仅靠植物提取已经不能满足越来越多的研究需求,与白桦酯酸结构很相近的化合物白桦酯醇,在白桦树皮中含量高于10%,而白桦又是北半球数量丰富的树种。
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但我们并不在乎沙场中的显露。
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啊!不用提了。提到肉,真是糟透了。
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Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。