以下为句子列表：
英文: Several polysubstituted biphenyl compounds containing four skeletons were firstsynthesized from ellagic acid via a reduction with DIBAL-H.The cytotoxicity activities of these compounds were evaluated against human tumor cells in vitro.
中文: 以鞣花酸为原料经关键的二异丁基氢化铝还原首次合成了数个拥有4个骨架的多取代联苯化合物,并对其人类肿瘤细胞毒活性进行了体外测试。
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英文: By adding mL of thionyl chloride, gram of methyl′bipheny amide, reacting for 8h, the yield of ′methylcyanobiphenyl could reach 7 7%.
中文: 考察了脱水剂种类, 脱水反应较佳的实验条件为氯化亚砜 mL, ′甲基 联苯酰胺 g, 反应8 h, 产物′甲基 腈基联苯的产率为7 7%。
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英文: Objective To explore the effect of endogenous androgen on rat nrostatecarcinoeenesis induced by ,'-dimethyl--aminobiphenyl (DMAB) and testosterone orooionate(TP) or α-dihydrotestosterone (DHT) with or without ethinyl estradiol (EE).
中文: 目的探讨乙炔基雌二醇(EE)投药及不投药的情况下,内源性雄性激素对二甲基氨基苯甲醛(DMAB)并用丙酸睾丸酮(TP)或双氢睾酮(DHT)而诱发的大鼠前列腺癌发病过程中的作用机制。
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英文: Studies on Synthesis of New Biphenyl , and 7 - Membered Ring N - Pivot Lariat Crown Ethers
中文: 联苯型[],[]和[7]环系氮杂支链套索冠醚的合成
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英文: The Preparation and Structure-Properties Study of Polyimide Fibers with Biphenyl Side Chains
中文: 含联苯侧基聚酰亚胺纤维的制备及结构与性能研究
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