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Methods Etiracetam was synthesized from 2 - pyrrolidone by N - alkylation and aminolysis.是什么意思?
Methods Etiracetam was synthesized from 2 - pyrrolidone by N - alkylation and aminolysis.
方法 2- 吡咯烷酮经N - 烷基化、氨解反应合成乙拉西坦.
相关词汇
methods
etiracetam
was
synthesized
from
by
alkylation
and
methods
n. method的复数:方法,方法( method的名词复数 ),方法论,教学法,分类法;
etiracetam
乙基氧吡咯烷乙酰胺;
was
v. 用来表示某人或某物即主语本身,用来表示某人或某物属于某一群体或有某种性质( be的过去式 ),在,存在,不受干扰;
synthesized
--
from
prep. (表示时间)从…,(表示原因)因为,(表示来源)来自…,(表示分离)与…分离[隔开];
by
prep. 在…旁边,表示方式,由于,经过;adv. 经过,表示保留或保存时用,短暂拜访;
alkylation
n. 烷化,烃化;
and
conj. 和,与,而且,于是,然后,因此;
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿,听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘,一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时,可以向商业票据的背书人要求支付的权力。
相关例句
Cast free films of ethylcellulose with different composition were prepared.
为了方便膜处方研究,采用浇铸法制备了不同处方的乙基纤维素游离膜.
Bekoji is a small town of farmers and herders in the Ethiopian highlands.
Bekoja是衣索比亚高地上农夫和牧羊人聚集的小镇.
Treating spayed rats with pregnancy woman urine or estrone increased both uterine and ileal mean amplitude.
二者动作的频率在实验的各种情况下,均不一律.
Sodium N - ( α - phenoxy ) - tetradecanoyltaurate ( SPTT ) was synthesized through Williamson etherification, hydrolysis, and acylation, using ethyl 2 - bromomyristate, phenol and taurine as the starting materials.
以α - 溴代十四酸乙酯 、 苯酚、牛磺酸为原料,经William son 醚化, 水解, 催化酰化等反应制备了一种芳氧基作疏水基团支链的牛磺酸盐类表面活性剂, 即N - ( α - 苯氧基 ) 十四酰牛磺酸钠(SPTT ).
A HPLC method for determination of estradiol patches and its related substances —— estriol and estron was presented.
建立HPLC法测定 雌二醇贴片的含量和有关物质.
OBJECTIVE : To prepare aciclovir ( Acv ) carbomer ( Cb ) ethylcellulose ( Ec ) microspheres with good bioadhesion and sustained drug release.
目的: 研制一种具有较好生物粘附能力和药物缓释效果的阿昔洛韦 ( Acv ) 卡波姆 ( Cb ) 乙基纤维素 ( Ec ) 微球.
Winning is a good thing, but failure sometimes is also estimable.
胜利是可贵的, 而失败有时同样可敬!
The ethics of his profession don't permit him to do that.
他的职业道德不允许他那样做.
The content of wheat - esterase in young sprout period is the highest.
以幼苗期的内乡188小麦植物酯酶含量最高.
Coastal and estuarine swamps in warm climates are dominated by MANGROVES.
这些树木的存在使木本沼泽与普通沼泽相互区分.
A cow's estrus cycle averages 21 days.
母牛的发情周期平均为21天.
Objective: To summarize the experience of treatment for mediastinal emphysema ( ME ) and analyse the etiopathology.
目的: 探讨纵隔气肿的发病机理,总结其治疗经验.
They imagined the existence of a physical medium - the ether - filling all of space.
他们想象存在一种充满整个空间的物理介质 -- 以太.
Mary is very keen on etching.
玛丽很喜爱蚀刻艺术.
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血细胞发生
血色素沉着
调味番茄酱