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In the first step of thedouble annulation route, 2-amino-3-carbamoyl-5,6-dihydro-4-pyridones 2 werecreated in high to excellent yields by a formal [5C + 1N] annulation reaction ofketene--acetals 1 with ammonia.

第一步，二硫缩烯酮1和氨源通过[5C + 1N]加成反应产率极高的得到了2-氨基-3-氨基甲酰基-5，6-二氢-4-吡啶酮2。

Moreover, free amino acid content and protein content decreased with the increase of SRWC in wheat grains after anthesis.

在池栽条件下，研究了施氮量和花后土壤相对含水量对小麦氮代谢特性和籽粒蛋白质含量的影响。

The free amino acid content of stem and sheath increased slowly after anthesis and reached th...

茎和叶鞘游离氨基酸含量则在开花后上升较缓慢，至花后21d达最大值。

It is rich in a variety of amino acids and vitamins necessary to humans, has with its close relatives - the same aloe cosmetic results, as well as prevention of constipation, the promotion of eye health care, increase bone density, helping to form cell membranes, prevent anemia and anti-neuritis , angular cheilitis, lower cholesterol, skin whitening anti-black spot, lift the heavy metal poisoning, anti-free radical, anti-old age disease, inhibit tumor and other effects, is one of the human ideal health food.

它富含多种氨基酸和人体必需的维生素，有着与它的近亲--芦荟相同的美容效果，还有预防便秘、促进眼睛保健、增加骨质密度、帮助细胞膜形成、预防贫血和抗神经炎、口角炎、降低胆固醇、皮肤美白防黑斑、解除重金属中毒、抗自由基、防老年病变、抑制肿瘤等多种功效，是人类理想的保健食品之一。

A developmental focus was placed upon the intermediates of the drug such as cephalosporin,antihypertensive,antilipemic,antiulcer,antineoplastic,antiviral,antineuralgic,vitamin and amino acid.

重点发展第二、三、四代头孢菌素中间体、第三、四代喹诺酮类药物中间体、新型抗高血压药物中间体、新型抗高血脂药物中间体、抗溃疡药物中间体、抗癌药及抗病毒药物的中间体、中枢神经药物中间体、手性药物中间体、维生素及各种氨基酸。

In the b-pleated sheet the polypeptides are more extended, and adjacent chains of amino acids are arranged antiparallel to each other, linked by hydrogen bonds between the C=O and NH groups of adjacent chains.

相比较而言，β片层具有更好的可延伸性，相邻的由氨基酸残基形成的肽链反向平行排列，同样以 C=O 和 NH 基团之间的氢键连接。

Due to green tea cold,"cold to heat," can also antiperspirant, and also rich in amino acids, vitamins and minerals.

由于绿茶冷，"冷到热"也可以汗，并在氨基酸，富含维生素和矿物质。

A method for rapid determination of volatile phenol in refinery wastewater has been developed based on the combination of 4 amino antipyrine coloring principle with flow injection technique.

基于4－氨基安替比林显色原理，采用流动注射技术，建立了炼油废水中挥发酚的快速测定方法。

The concentration of free phenol in the waste water was measured by the 4-amino antipyrine method. The results showed that the concentration of free phenol was below 100 mg/kg. An optimized technique was recommended.

结果表明，采用这种新型催化剂可使所产生的废水中游离酚含量控制在100 mg/kg以内，优化出了一种生产Novolac的绿色环保新工艺。

What amino acid residues of antithrombin III are likely to interact with heparin?

可能与肝素反应的antithrombin III的氨基酸残基是什么？

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新