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- Keywords sponge;N acyl sphingosine;amide; 海绵;N-酰基神经鞘氨醇;酰胺;
- acyl sphingosine 酰基(神经)鞘氨醇
- An acyl derivative of hydrazine. 酰肼一种由肼衍生而来的酰
- An example of the acyl group is the acetyl group. 乙酰基是酰基的一个例子。
- Tannase is an acyl hydrolase of tannin. 单宁酶是水解单宁酯键的酶,用途广泛,具有重要的商业价值。
- Methods:EFTA is synthesized from EATA by one step:acyl. 方法:以2-氨基-噻唑基-4-乙酸乙酯(EATA)为原料;经氨基甲酰化反应得到 EFTA.
- Effect of sphingosine and the water stress on callus culture of Medicago sativa L. 鞘氨醇和水分胁迫对紫花苜蓿愈伤组织培养的影响。
- Title: Effect of sphingosine and the water stress on callus culture of Medicago sativa L. 关键词:鞘氨醇;水分胁迫;紫花苜蓿;愈伤组织;酶活性
- The synthesis of sphingosine and related long chain base have aroused much scientific interest in recent years. 鞘氨醇等的合成在有机合成界形成了一个经久不衰的热潮,应用各种新技术的合成方法不断出现。
- Herein we review the chemical studies on sphingosine and related lipid derivatives,with focus on their chemical synthesis. 本文主要综述了鞘氨醇等衍生脂质的化学研究,特别是它们的化学合成进展。
- Use of ammonia gas: fertilizer and various ammonia containing compound, various amidogen, acyl and other ammonia containing testing agents (explosives) etc. 氨气用途:化肥和各种含氨化合物。各种胺基、酰基、硝酸和各种含氨制试剂(炸药)等。
- The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. 以氟化钾为氟化剂,环丁砜为溶剂置换氟化,再与甲醇酯化得到四氟对苯二甲酸甲酯;
- Structure 4 is the reaction intermediate for H2C=C(OH)Na to serve as acyl anion equivalent. H_2C=C(OH)Na具有双重反应性;结构4是发生亲核反应的中间体;发生类卡宾反应时经过类似构型2的中间状态.
- The effects of organic solvents, acyl donors and amounts of lipase on the reaction were studied. 攷察溶剂、酰基供体和加酶量对反应的影响,确定有机相中酶促拆分环氧丙醇的最适反应条件。
- Maltose fatty acid ester was prepared with maltose and fatty acyl chloride in the presence of catalyst. 以麦芽糖和脂肪酰氯为原料,制备麦芽糖脂肪脂酸酯。
- In addition, the effect of concentration of acyl chloride on the rate of ammonolysis was very small. 但在反应后期,反应速率呈明显的二级反应特征。
- In the depth of velar, fat acid can enter automaticity acyl to change the thoroughfare of action. 在膜的深处,脂酸能进入自动性酰化作用的通途。
- If iron chela mixture goes the Yi Ke application such as amine of iron careless acyl, with promoting iron excrete. 铁螯合剂如去铁草酰胺等亦可应用,以促进铁的排泄。
- In the five kinds of N,N dialkylacylamides the longer the carbochain of their acyl is and the shorter th... 在5种N,N-二烷基酰胺类物质中,酰基碳链越长、氮烷基碳链越短则其集油能力越强。
- Carboxylic acid.. sulphonic acid.. esters.. acyl halides.. amides.. nitriles.. aldehydes.. ket... Chemistry 呀 Chemistry.... 我就快俾你玩死了。。。凡事真的要学得那麽清楚吗...