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- Methods Liquid chromatography and recrystallization were used to obtain the monomer of rubescensin A. 方法利用液相色譜分離技術(shù)和重結晶方法獲得冬凌草中的有效成分。
- Results monomer of rubescensin A was obtained by using determinate ratio of organic regents and recrystallization. 結果在一定比例的有機溶劑洗脫下并利用重結晶可以得到冬凌草甲素純品。
- Rubescensine A and B have many pharmacological actions,especially anticancer activity. 冬凌草甲素、乙素具有多種藥理作用,尤其是抗癌活性。
- Study on the quantum chemical calculations is performed by means of MNDO method on VAX8350 computer for rubescensine A and its acetylate derivative. 本文用MNDO方法在VAX8350計算機上對冬凌草甲素及其乙酰衍生物進(jìn)行了量子化學(xué)計算研究。
- There is a vein of melancholy in his character. 他的性格中有少許憂(yōu)郁的氣質(zhì)。
- There was a long lag in forwarding mail to us. 轉寄給我們的郵件晚了很久才拿到。
- A bowl of hot chicken soup is good for you. 喝一碗熱雞湯對你有好處。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽團。
- A country must have the will to repel any invader. 一個(gè)國家得有決心擊退任何入侵者。
- A fire was burning in the grate. 火在壁爐中燃燒著(zhù)。
- Keywords rubescensin A;Rabdosia;new drug; 冬凌草甲素;香茶菜;新藥開(kāi)發(fā);
- They cleaved a path through the wilderness. 他們在荒原中開(kāi)辟出一條路。
- They denounced him to the police as a criminal. 他們向警方告發(fā)他是罪犯。
- This place doesn't have a very savory reputation. 這個(gè)地方的名聲可不太好。
- This strain of wheat can grow during a cold spring. 這種小麥可以在寒冷的春天生長(cháng)。
- Have a glass of beer to rinse your dinner down. 喝杯啤酒把你吃的晚飯沖下去。
- I am a hundred percent in agreement with you. 我百分之百同意你的看法。
- A simple test will show if this is real gold. 簡(jiǎn)單的試驗就能證明這是否是真金。
- I am well aware that this is a tough job. 我深知這是一件棘手的工作。
- I bought a pair of tan leather shoes the other day. 前幾天我買(mǎi)了雙棕褐色的皮鞋。
