吡啶

A liquid crystal with pyridine group was synthesized from reactants of pyrogallic acid and isonicotinato by esterification reaction.

以焦性没食子酸和异烟酸为原料合成了带吡啶官能团的液晶配体。

A general method for preparing multi-cyclic indolizine compounds(1a—1c, 2a—2b and 3) in moderate yields(45%—71%) by a 1,3-dipolar cycloaddition reaction of pyridinium N-ylides, isoquinolinium N-ylides or quinolinium N-ylides to 1,4,4a ,8a-tetrahydro-1,4-methanonaphthalene-5,8-dione, followed by an aromatization, in the presence of tetrakispyridine cobalt dichromate is described.

在 [ 4Co( HCr O4 ) 2 ]存在下，吡啶叶立德、喹啉叶立德或异喹啉叶立德分别和 1 ，4，4a，8a-四氢-1 ，4-桥亚甲基萘-5 ，8-二酮反应，一步法合成了中氮茚类多环化合物( 1 a～ 1 c，2 a～ 2 b，3 )。该方法原料易得，反应条件容易控制，为合成这类化合物提供了新方

Six months later, compare the therapeutic effect of two groups, body function, activity index number of pathogenetic condition, total self-assessment, rachialgia, rachiodynia rhachitis, activity of thoracic skeleton, schober, distance between fingers and ground, antisternum hypsokinesis, ESR, C reactive protein have statistics difference, others have no statistics difference. Conclusion: Two rattan mixture has the certain therapeutic effect of theating Ankylosing Spondylitis.

治疗6个月后，二藤合剂组与柳氮磺吡啶组比较，患者躯体功能、病情活动指数、总体自我评价、脊柱痛、脊柱炎症、胸廓活动度、Schober、指地距、脊柱后仰、血沉、C反应蛋白的改善有统计学差异(P＜0.05)，余观察指标两组间比较无统计学差异。

Every indicatrion has statistics difference after six mouthstreatment of Two rattan mixture which include body function, activity index number of pathogenetic condition, total swelling arthrosis, total self-assessment, rachialgia, rachiodynia rhachitis, activity of thoracic skeleton, schober, distance between fingers and ground, left flection of antisternum, right flection of antisternum, antisternum hypsokinesis, distance between head and wall, ESR, C reactive protein: every indicatrion has statistics difference after the treatment of Sulfasalazine except the indicatrion of distance between head and wall.

二藤合剂组治疗6个月后其各项观察指标(包括躯体功能、病情活动指数、肿胀关节总数、总体自我评价、脊柱痛、脊柱炎症，胸廓活动度、Schober、指地距、脊椎左屈、脊椎右屈、脊椎后仰、枕墙距、血沉、C反应蛋白)与治疗前相比，均有统计学差异(P＜0.05)；柳氮磺吡啶组除枕墙距外，其余观察指标亦均有统计学差异(P＜0.05)。

For obtaining maximal yield of hydrogen how to make glycolysis to produce large amount of NADH at TCA cycle and also to reoxidize FADH2 through electron transport chain by oxygen or other electron acceptors were chief introduced .

文中着重介绍了如何通过 TCA cycle使葡萄糖酵解产生大量的 NADH(还原型二磷酸吡啶核苷酸)，抑制 NADH脱氢酶络合物的电子迁移链而得到最高氢气产量。

Divinylpyridine-9,9′-diethylfluorene nanoparticles were prepared by reprecipitation method.

利用二次沉淀法制备出不同粒径(101.6~516.9nm)的2，7-二乙烯吡啶基-9，9′-二乙基芴有机纳米微粒。

At present the corporation has grown into the largest and most advanced production base of pentachloropyridine and the only new type flame retardent ethylenebistetrabromophthalimide(BT93W) in China.

目前，公司已经成长为全国最大，技术最先进的五氯吡啶生产基地及全国唯一的新型高效阻燃剂生产基地。

Synthesis and characterization of tridentate chiral ligands, a series of Schiff-bases which are synthesized by salicylaldehyde, 2-pyridinecarboxaldehyde and amino alcohols derived from the amino acids without coordination group on side chain.

由侧链不带配位基团的天然氨基酸合成的氨基醇与水杨醛及2-吡啶醛缩合的Schiff-Base等三齿配体的合成与结构分析。

Chlorpyrifos mehtyl with different dosages of 3,5,10 mg/kg compared with malathion 15 mg/kg in grain silo,each contented 40 thousand kilograms of rice was studied.To be sprayed by machine when loading to silo and to be observed two years through all experiment,the effective control to sitophilus zeamais of chlorpyrifos mehtyl 5 mg/kg can be protected more than six months,and 10 mg/kg over one year.

报道了甲基毒死碑(化学名称为二甲基O-3，5，6-三氯-2-吡啶基硫逐磷酸酯)3、5、10 mg/kg不同剂量，以防虫磷15 mg/kg作比较，在立筒库星仓内，每筒40000 kg稻谷，机械喷雾法处理，储藏二年，经生物测定对玉米象药效，甲基毒死蜱5 mg/kg可达半年以上，10 mg/kg可达一年以上防护期。

This study discussed the composition of coal pyridine soluble from column-chromatography and the Soxhlet extraction method.

本研究以吡啶为溶剂，对准葛尔黑岱沟、平朔、潞安常村3种不同变质程度的煤样进行了柱色谱分离和索氏抽提。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。