Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction, acylation, demethylation and bromination overall yield.是什么意思？

Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction, acylation, demethylation and bromination overall yield.

以水杨醛为原料,经缩合、还原、酰化、脱甲基、溴化反应制得苯溴马隆,总收率40.6%.

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

condensation

n. 冷凝，冷凝液，凝结的水珠，节略；

例句
He used his sleeve to wipe the condensation off the glass.
他用袖子擦掉玻璃上凝结的水珠。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

chloroacetone

n. 氯丙酮；

例句
To establish a method of GC detection of chloroacetone in the air of workplace.
建立工作场所空气中氯丙酮气相色谱测定方法.

reduction

n. 减少，降低，[数学]约简，[摄影术]减薄；

例句
Despite a reduction in earnings there are compensations in moving to the north-east where the quality of life is excellent...
尽管钱会挣得少一点，搬到生活质量高的东北部去还是有很多好处的。

acylation

酰化作用；

例句
The kinetic equation of acylation process fitted first order linear relation.
酰化过程的动力学方程符合一级线性关系.

demethylation

反甲基化；

例句
Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction, acylation, demethylation and bromination overall yield.
以水杨醛为原料,经缩合、还原、酰化、脱甲基、溴化反应制得苯溴马隆,总收率40.6%.

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。

bromination

例句
METHODS: The target compound was prepared by the bromination and amination reaction.
方法: 用溴代及胺化反应合成了四甲基吡嗪衍生物.

overall

adj. 全部的，全体的，一切在内的，综合的；adv. 全面地，总地，总的说来；n. 工装裤，罩衫，〈英〉（军官的）紧身军裤；

例句
The overall ambience of the room is cosy.
房间整体的感觉是温暖舒适。

yield

vt. 屈服，投降，生产，获利，不再反对；vi. 放弃，屈服，生利，退让，退位；n. 产量，产额，投资的收益，屈服，击穿，产品；

例句
Will she yield to growing pressure for her to retire?...
面对要求其隐退的压力越来越大，她会屈服吗？

...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。

This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。

Nothing to be got without pains but poverty.
一份耕耘，一份收获。

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。

Supporters of the death penalty argue that it would deter criminals from carrying guns...
死刑的支持者认为它能阻吓罪犯携带枪支。