乙酰乙酸

Methoxycarbonyl-4-(4-methoxyphenyl )-6-methyl-3, 4-dihydropyrimidine-2(1H)-one was synthesized from anisaldehyde, methyl acetoactate and urea in presence of HF-1O1 strong acidic ion-exchange membrane.

在HF-101强酸性离子交换膜的存在下，由对羟基苯甲醛、乙酰乙酸甲酯与脲一步合成了5－甲氧羰基－4－（4－甲氧苯基）－6－甲基－3，4－二氢嘧啶－2(1H)－酮。

It can be broken down to yield acetoacetate.

它可以被分解成乙酰乙酸。

A novel route for synthesis of methyl acetoacetate from acetone and dimethyl carbonate over solid base catalysts was proposed.

以碳酸二甲酯与丙酮为原料，在固体碱上合成乙酰乙酸甲酯，并考察了反应温度、反应时间、催化剂用量和原料摩尔比等因素对反应结果的影响。

Diagnostic tests include the arterial blood gas, and nitroprusside test for acetoacetate (used qualitatively, not quantitatively, because it always underestimate s the severity of the acidsis).

诊断实验包括动脉血气分析、以及测定乙酰乙酸的硝基实验（因常用于估计酸中毒的严重程度，只作为定性实验而不是定量的）。

When MAA yeast was used to catalyze other systems, such as reducing ethyl 4-chloroacetoacetate to ethyl-4-chloro-3-hydroxybutyrate and ethyl acetoacetate to ethyl-3-hydroxybutyrate, the yield also improved at various degrees.

用此酵母在水相中催化乙酰乙酸甲酯的还原，其得率较普通面包酵母要高。pH和温度对MAA酵母与普通面包酵母都有相同的影响。

Diagnostic tests include the arterial blood gas, and nitroprusside test for acetoacetate (used qualitatively, not quantitatively, because it always underestimates the severity of the acidsis).

诊断实验包括动脉血气分析、以及测定乙酰乙酸的硝基实验（因常用于估计酸中毒的严重程度，只作为定性实验而不是定量的）。

Diagnostic test s include the arterial blood gas, and nitroprusside test for acetoacetate (used qualitatively, not quantitatively, because it always underestimates the severity of the acidsis).

诊断实验包括动脉血气分析、以及测定乙酰乙酸的硝基实验（因常用于估计酸中毒的严重程度，只作为定性实验而不是定量的）。

Any of three compounds (acetoacetic acid, acetone, and/or beta-hydroxybutyric acid) found in excess in blood and urine of persons with metabolic disorders.

三种化合物中任意一种（乙酰乙酸、丙酮和/或β羟基丁酸），人体的血液和尿中大量含有。

AIM: To investigate the effect of PD98059, a specific repressor of extracellular signal regulated kinase1/2 (ERK1/2), on the proliferation of the murine lymphocytes. METHODS: Lymphocytes were isolated from lymphoid nodes of BALB/c mouse. After stained with carboxy fluorescein diacetate, succinimidyl ester, the cells were stimulated with polyclonal activators, concanavalin and phorbol 12,13 dibutyrate plus ionomycin.

分离小鼠淋巴结细胞，藉羧基荧光素乙酰乙酸染色，用多克隆刺激剂刀豆A蛋白或者佛波醇酯加离子霉素刺激，以流式细胞术分析PD98059对淋巴细胞增殖的影响；利用碘化丙锭染色分析PD98059对细胞周期的影响。

METHODS: A model of T cell activation and proliferation was established by stimulated the cells with Con A.T cells were treated with different concentrations of CPT. The expression of CD69, the early marker of CD3(superscript +) T cell activation, was measured by FACS. The proliferation index was determined by carboxyl fluorescin diacetate succinmidyl ester by flow cytometry. The cell-cycle distribution was analyzed by propidium iodide staining.

以ConA刺激小鼠T淋巴细胞，建立小鼠T淋巴细胞活化、增殖的模型，以不同浓度的CPT作用于该模型，流式细胞术检测T细胞早期活化标志CD69分子的表达；以活体染料羧基荧光素乙酰乙酸染色流式细胞术分析CPT在ConA刺激下小鼠淋巴细胞的增殖相关指数；以碘化丙啶染色流式细胞术分析细胞周期的分布情况。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。