| 1. | The scheme initially involves acylation of thiophene using a carboxylic acid to afford the acyl thiophene . 这条路线是先用羧酸使噻吩已酰化制得酸基噻吩。 |
| 2. | Acylation stimulating protein inducing 3t3 - l1 preadipocyte differentiation 促酰化蛋白 |
| 3. | Differentiating 3t3 - l1 preadipocytes undergo clonal expansion induced by acylation stimulating protein 前脂肪细胞分化为成熟脂肪细胞后的再增殖 |
| 4. | Methods cefsulodin was prepared , taking phenylacetic acid as the starting material , followed by sulfonation , resolution , acylation , amidation and substitution , in 5 steps totally 方法以苯乙酸为原料,经磺化、拆分、酰化、酰胺化和取代五步反应合成头孢磺啶。 |
| 5. | Methods linezolid was prepared by the steps of substitution , reduction , acylation and condensation with biacetyl compond from the starting material 3 , 4 - difluoronotrobenzene 方法以3 , 4 -二氟硝基苯为原料,经取代、还原、酰化、再与侧链双乙酰化合物缩合得到目标化合物。 |
| 6. | Dihydroxybenzyl alcohol is synthesized from 3 , 5 - dihydroxybenzoic acid by acylation and reduction by sodium borohydride reagent systems , which gives a convenient synthetic method 摘要以3 , 5 -二羟基苯甲酸为原料,经酰化、硼氢化钠还原体系还原,合成了3 , 5 -二羟基苯甲醇。 |
| 7. | Acylation activity of hydroxyl groups in methyl cholicate has been determined by the use of methacryloyl chloride , methacryloyl anhydride and methacrylic acid as the acylating agents 以甲基丙烯酰氯、甲基丙烯酸酐和甲基丙烯酸作酰化剂,研究了胆酸甲酯分子中羟基的反应活性。 |
| 8. | This paper discusses methods of synthesizing fomesafen technical having high active ingredient percentages , with special emphasis on the key processes of nitration and acylation , and with the goal of manufacturing low cost fomesafen technical with > 98 % purity 摘要讨论了高含量氟磺胺草醚原药的合成方法,对关键的硝化与酰化工艺进行了探讨,使其在较低生产成本下合成98 %以上的氟磺胺草醚原药。 |
| 9. | The article is focused on the modification studies of chitosan ultrafiltrating compound membrane ( cs compound membrane ) on the basis of preceding researches . it includes adding cross - linking agent , modification agent , acylation agent in the casting membrane solution . the result shows that the new modification membrane are better in the phychemical properties and separation properties 本文是在前面研究的基础上,着重进行了聚氨基葡糖复合超滤膜(简称cs复合膜)的改性研究.通过从交联剂、改性剂、乙酰化试剂等方面的改性来寻求最佳的铸膜液配方.结果表明,改性后的膜能达到较好的物化性能和分离性能 |
| 10. | Abstract : an imidazole - catalyzed acylation method of phthalic anhydride is applied to the determination of hydroxyl values of reinforcing agent is211 . the analytical error is 5 . 0 10 - 3 . the relative standard deviation of the method is less than 0 . 04 and its coefficient of variation is not more than 5 . 0 10 - 3 . hydroxyl values determined in different batch samples meet the design requirement completely . this method is rapid and simple , it is adaptable to conventional analysis 文摘:以咪唑催化邻苯二甲酸酐酰化的方法测定增强剂is211的羟值,准确度高,分析误差为5 . 0 10 - 3 ;方法精密度好,标准偏差小于0 . 4 ,变异系数不大于5 . 0 10 - 3 ,测定不同批号试样的羟值完全符合商标值,方法快速、简便,适用于常规分析。 |