羧基

ABSTRACT: In the presence of sodium t-butoxide and DMSO,ethyl 2-oxocyclopentanecarboxylate was subjected to C-alkylation with 2-(4-bromomethylphenyl)propanoic acid with high regioselectivity to give 2-［4-(1-ethoxycarbonyl-2-oxo-1-cyclopentanylmethyl)phenyl］propanoic acid (4) which was followed by hydrolysis,decarboxylation and salt formation to afford loxoprofen sodium in about 72% overall yield.

在叔丁醇钠和二甲基亚砜的存在下，2-丙酸对2-乙氧羰基环戊酮进行C-烷基化，再经水解脱羧，成盐即得洛索洛芬钠，以2-丙酸计算，总收率为72%。

Through repetitious filtration to synthetic methods, it was proved that Stobe reaction can be used in the synthesis of γ-oxoacyl heliotropin.

反复筛选合成方法结果证明将Stobbe反应及其在合成γ-羰基羧酸的应用用于本研究工作中，初见成果。

Among analyzed 197 synthetic genes on chip, approximately 60 genes have been expressed, including 18 two-component/kinase, 10 glycolysis/TCA, 3 gene clusters, 7 regulators, 5 asaption/celldivision/differentiation/sporulation, 4 transport/binding proteins, 2 chaperones, 5 RNA polymerase sigma-factors, 3 transcription/translations, 2 fatty acid synthesises and 1 RNA polymerase β subunit.

对芯片上的197个合成基因进行分析：大约有60个基因进行了表达，其中包括18个双组分或激酶基因；10个糖酵解或者三羧酸循环途径基因；3个阿维基因簇；7个调节基因；5个细胞分化或孢子形；4个运输或固定基因；两个伴侣分子；5个RNA聚合酶σ因子；3个转录基因；两个脂肪酸合成基因；1个RNA聚合酶β亚基。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。