直接氧化是通过阳极直接氧化形成2，2-二羟甲基丙醛；
The direct oxidization directly is forming 2,2-dimethylolbutyraldehyde by anode;
在碱性催化剂的存在下，甲醛和丁醛经羟醛缩合反应合成2,2—二羟甲基丁醛。
Respectively using barium hydroxide and a basic anion exchanger as a catalyst, 2, 2-bis (hydroxymethyl) butyraldehyde is prepared from the Aldol condensation of butyraldehyde with formaldehyde.
然后，在无水THF中用氢化铝锂还原，得纯的手性2 ，4 二羟甲基四氢吡咯衍生物。
All of the 2,4 pyrrolindinediester derivatives were reduced with lithium aluminum hydride in anhydrous THF, and ten new chiral 2,4 Dihydroxylmethylpyrrolidine derivatives were found.
建立了2,2二羟甲基丁醛氧化液中反应物以及产物的高效液相色谱(HPLC)分析方法。
HPLC method separating the reactants and products in the oxidation of 2, 2 bis (hydroxymethyl) butyric aldehyde was experimentally investigated.
二羟甲基二羟基乙撑脲树脂（即DMDHEU简称2D树脂）是目前应用最多的抗皱免烫整理剂。
At present, Di-Methylol Di-Hydroxy Ethylene Urea(DMDHEU, 2D resin for short) is the major durable press finishing agent.
油与多元醇经醇解反应，进而与聚醚或聚酯、 二羟甲基丙酸、二异氰酸酯反应制得水溶性氨酯油。
Waterborne polyurethane resin is prepared by alcoholyzing oil with polyol at first, and then reacting with polyether (polyester), dimethylol propionic acid, diisocyanate.
“我们需要开发新的加工技术，羟甲基糠醛还是一种建筑材料，能够代替例如聚对苯二甲酸乙二酯(PET)这种制作可乐瓶子所需要的塑料，”他指出。
"We need to develop new process technologies, and HMF is a building block that can replace products like PET, a plastic used for soda bottles," he notes.
在采用高真空两级薄膜蒸发分离甲苯二异氰酸酯（TDI）-三羟甲基丙烷（TMP）聚氨酯固化剂中游离TDI的实验研究基础上，进行了中试研究。
The free toluene diisocyanate(TDI) in the curing agent TDI-TMP(Trimethylol Propane) of polyurethane was separated in laboratory by means of high-vacuum two-stage thin-film evaporation.
他汀类药物能阻断羟甲基戊二酸单酰辅酶A还原酶，该酶与多种脂肪的产生有关，阻断该酶可以降低胆固醇水平。
Smoke breakStatins block an enzyme called HMG-CoA reductase, which is involved in the production of various fatty molecules. Blocking this enzyme lowers cholesterol levels.
结论：普伐他汀不能抑制肝细胞PAI-1的分泌。羟甲基戊二酰辅酶A还原酶的抑制与PAI- 1分泌可能没有关系。
Conclusion:Pravastatin can not inhibit the secretion of PAI 1 in hepatic cells and the inhibition of hydroxymethylglutaryl coenzyme A reductase may not be related to the secretion of PAI 1.
结果表明，甲醇的渗透率远大于新戊二醇和三羟甲基乙烷的渗透率。
The results showed that the permeability of methanol is far greater than the Neopentyl Glycol(NPG) and trimethylol ethane(PG).
美伐他汀是3羟甲基戊二酰辅酶a还原酶的有效的竞争性抑制剂，它是一种胆固醇生物合成调解酶。
Mevastatin is a potent competitive inhibitor of 3-hydroxy-3-methyl-glutaryl-coa reductase, a regulatory enzyme for cholesterol biosynthesis.
介绍了双环原酸酯个4-羟甲基-2，6，7-二氧杂二环（2．2．2）辛烷的合成方法，并提供了一条简单可行的合成途径．。
This paper introduces the synthesis of 4-(acryloxymethy1)-2, 6, 7-trioxiabicyclo (2.2.2)octane, and presents a simple way to characterize it.
美伐他汀是3羟甲基戊二酰辅酶a还原酶的有效的竞争性抑制剂，它是一种胆固醇生物合成调解酶。
Mevastatin is a potent competitive inhibitor of 3-hydroxy-3-methyl-glutaryl (HMG) -coa reductase, a regulatory enzyme for cholesterol biosynthesis.
美伐他汀是3羟甲基戊二酰辅酶a还原酶的有效的竞争性抑制剂，它是一种胆固醇生物合成调解酶。
Mevastatin is a potent competitive inhibitor of 3-hydroxy-3-methyl-glutaryl (HMG) -coa reductase, a regulatory enzyme for cholesterol biosynthesis.
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