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汉语拼音：yǎn shēng wù

一种化合物分子中的原子或原子团被其他原子或原子团所取代而生成的产物。如以甲烷（CH4）为母体，则甲醇（CH3OH）、一氯甲烷（CH3Cl）都是它的衍生物。

• From the synthesis of morphine and acetic anhydride derivatives of heroin history, so far, heroin still known as the "King of Drugs. "

  从吗啡与乙酐合成其衍生物海洛因的历史，到目前为止，海洛因仍被号称“毒品之王”。

• The cationic starch, as an important ramification of the modified starch, has been used in many fields nowadays.

  阳离子淀粉是一类重要的淀粉衍生物，可应用于各种领域。

• One particularly promising anti-cancer antibiotic is geldanamycin and a modified form of this drug known as 17AAG.

  一种特别有潜力的抗癌抗生素是格尔德霉素及其名为17AAG的修饰后衍生物。

• Its major use is in the production of acetic acid and its derivative acetone and various acetates, and of numerous other organic chemicals.

  它主要用于生产醋酸及其衍生物和各种醋酸酯，以及生产许多其他有机化学品。

• The identity of each product for which a definite structure is given was confirmed by preparing at least one derivative.

  的身份，而每一个产品一个明确的结构，给出证实了准备至少一个衍生物。

• The invention relates to a bergenin isopentene group derivative and a preparation method and an application thereof.

  一种岩白菜素异戊烯基衍生物及其制备方法和应用。

• They helped improve the fixed combination by replacing artemisinin with [one of its derivatives], artemether.

  他们用青蒿素的一种衍生物——蒿甲醚代替青蒿素，协助改进了固定复方药。

• Polyfluorene and its derivatives is one of the most promising electroluminescent polymers.

  聚芴衍生物是最有发展潜力的电致发光材料之一。

• Provided are quinazoline derivatives of the compound (I), and its preparation process and application as a medicine of inhibit tumor growth.

  本发明公开了一种涉及化合物（I）的喹唑啉衍生物，及其制备方法和作为肿瘤生长抑制剂方面的药物应用。