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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;
例句
The old
methods
weren't adequate to meet current needs...
老一套方法已不足以满足当前的需要。
etiracetam
乙基氧吡咯烷乙酰胺;
例句
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.
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;
例句
There
was
a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。
synthesized
--
例句
Butyraldehyde 1,2 proparediol acetal was
synthesized
by using stannous chloride as catalyst.
以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.
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];
例句
...an abortive attempt to prevent the current President
from
taking office.
企图阻止现任总统连任的失败尝试
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;
例句
...expensive make-up that we saw being advertised
by
a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品
alkylation
n. 烷化,烃化;
例句
These derivatives are readily obtained by
alkylation
of 2 - mercaptopyridine and alkyl halides under alkaline conditions.
这些衍生物可以容易地在碱性条件下通过 2- 巯基吡啶和卤代烷的烷基化而得到.
and
conj. 和,与,而且,于是,然后,因此;
例句
I spend a lot on expensive jewelry
and
clothing...
我花很多钱购买昂贵的首饰和衣服。
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。
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。
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。
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
He said all that remained was to agree to a time and venue...
他说剩下的只是商定一个时间和集会地点。
I'm sick of your having hysterics, okay?
我受够了你的歇斯底里,知道吗?
The railroad will realize that it can save this $ 100 cost by investing $ 50 in a spark arrestor.
铁路将意识到,它可以通过投资50美元购买阻火器来省下这100美元.
Wind is the fabricant of desert, beach and riverside are the place of accommodation.
风是沙漠的制造者, 海边,湖岸,河谷则是沙漠的供应地.
This would certainly militate against good bonding between the resin matrix and the glass.
这当然会影响树脂基体与玻璃间的良好粘结.
White backlash increases as the pressure for change in South Africa mounts.
南非求变的压力升高,白人的敌意也加深.
Politicians dress up their ruthless ambition as a pursuit of the public good...
政客们将他们的狼子野心美化成是谋求公共利益。
The City was criticised for being too exclusive and uncompetitive.
伦敦城被指责过于奢华和缺乏竞争力。
Psychopharmacologists discovered that amine reuptake is a process that inactivates monoamine nEurotransmitters.
精神药理学家发现,胺的重摄取是消除一元胺神经传递素活性的过程.
The whole village was burnt down by the puppet troops.
整个村子都被伪军焚毁了.
热门汉译英
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coffee
dinner
christen
source
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droplets
Poetry
Penney
Stolen
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tender
hallways
earth
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building
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Jinmen
Jinggu
Hattie
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映入眼帘
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挂东西的人
奥氏体变拔丝法
气量大的
写生风格的
细胞毒素的
因数分解
码尺
走私夹带
海地人
怒目
火车
惯常地
抗甲状腺毒性的
石蕊杀菌素
平淡无味的
自然反应
共济会会员的
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法国历史学家
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应履行的
阿托方耐尔
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有磁性的
法拉第
娼妇
卖弄文采的
一组
再处理
被勒死
不计其数
网衣装网法
油炸馅饼
倾诉
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插件
沃尔什
环状地
赋予灵魂
最新汉译英
reserved
recite
over-industrialized
funnels
inspired
agree
patronize
painted
fictions
solidify
s
penance
revolutionization
endearing
layers
estimate
poached
pride
poor
listen
Trained
stool
intriguing
Aswan
tailor
raining
derived
draw-work
sweet
最新汉译英
违法行为
不再使用
轻快的三拍子舞蹈
有造化的
最后部的
囊性肉瘤
萘嵌戊烷
意见不合
陈情
烘脆
天文地球动力学
有关田园生活的
某地特产的植物
小脑红核脊髓的
像狗一样的行为
临时凑成的
全体教职员
淀粉合成酶
事先的考虑
向内生长物
电喷镀金属
不合标准的
微型测力计
结合起来
不成功的
清点存货
睑切除术
最大的量
火柴制造
抗霍乱的
逐出教会
短途旅行
自我催眠
尿道下裂
不和悦的
毗邻而居
自然氧化
抑制作用
排字上的
有负号的
共聚作用
斯蒂希特
单侧鳃的
大流行病
被丑化的
不和谐的
花青甙尿
萼冠间柄
有益受体