哌啶

With propanal and malonate as reaction agents and piperidine as the catalyst, Knoevenagel reaction was used in the synthesis of flavor 2-pentenoic acid.

以丙醛和丙二酸为原料，哌啶为催化剂，采用Knoevenagel反应合成了食用香料2-戊烯酸反式构型，产率64.2%，其具有干酪味、淡烤香味。

The other for: safrole, sassafras oil, safrole different 82 yuan / kg; 1 - phenyl -2 - propanone 2,500 yuan / kg; 3.4 dioxane methylene diphenyl -2 - propanone 7200 yuan / ton; Piperonal 1,000 yuan / kg; N-acetyl-o-amino benzoic acid 11500 yuan / ton; anthranilic acid 15,500 yuan / ton; Phenylacetate 15,000 yuan / ton; acetic anhydride 9900 yuan / ton; trichloromethane 4100 yuan / ton ; anhydrous ether 8500 yuan / ton; piperidine 58000 yuan / ton; toluene 5200 yuan / ton; methyl ethyl ketone 10,000 won / ton; sulfate 1,200 yuan / ton; hydrochloride 400 yuan / ton; anhydrous Ethanol 4200 yuan / ton.

另供：黄樟素、黄樟油、异黄樟素82元/公斤；1-苯基-2-丙酮2500元/公斤；3.4 亚甲基二氧苯基-2-丙酮7200元/吨；胡椒醛1000元/公斤；N-乙酰邻氨基苯酸11500元/吨；邻氨基苯甲酸15500元/吨；苯乙酸15000元/吨；醋酸酐9900元/吨；三氯甲烷4100元/吨；无水乙醚8500元/吨；哌啶58000元/吨；甲苯5200元/吨；甲基乙基酮10000元/吨；硫酸1200元/吨；盐酸400元/吨；无水乙醇4200元/吨。

Review analysis of drug usage in 462 Schizo phrenia patients was made.

回顾性分析462例精神分裂症的用药。143例单用药7种，频度高者依次为氯氮平，氯丙嗪、氟哌啶醇、奋乃静及舒必利。

Xitelopram may be used as a synergist of Haloperidol in the treatment of schizophrenia with negative symptoms.

西肽普兰可作为氟哌啶醇治疗以阴性症状为主的精神分裂症的增效剂。

The OnTrak TesTcard 9 provides a qualitative screen for the presence of amphetamines, barbiturates, benzodiazepines, cocaine, methamphetamines, morphine, phencyclidine, tetrahydrocannabinol, and tricyclic antidepressants in urine.

OnTrak TesTcard 9能够定性筛查下述尿液中的药物：安非他明、巴比妥酸盐、苯二氮、可卡因、脱氧麻黄碱、吗啡、苯环己哌啶、四氢大麻酚、三环抗抑郁药。

In the months that followed, more news about thalidomide continue to flow in

后来的几个月里，继续传来有关酞胺哌啶酮的消息。

In the months that followed, more news about thalidomide cont in ue to flow in

后来的几个月里，继续传来有关酞胺哌啶酮的消息。

Objective: To study on the effect of Trillium tschonoskii Maxim and Dipsacus asperclaes on the expression of antioxidase of dementia rat.

目的：观察和探讨延龄草、续断对氟哌啶醇致痴呆大鼠抗氧化酶表达作用的影响。

Objective: To study the eddect of Trillium tschonoskii Maxim and Buflomedil HCl on expression of anti-oxidase of Alzheimer rat induced with haloperidol.

目的：观察和探讨延龄草、盐酸丁咯地尔对氟哌啶醇致痴呆大鼠抗氧化酶表达作用的影响。

The alkaloids were studied by gas chromatography coupled to mass spectrometry. Six major venom alkaloids were detected in worker venom which are all trans 2-methyl-6-alkyl or alkenyl pepdine according to mass spectral data and relative report on S.invicta.

通过保留时间和质谱离子碎片数据，并与国外相关报道比较分析得出：入红火蚁毒液中主要成分为2-甲基-6-烷基或烯基哌啶生物碱，仅有6位取代烃基碳链长短和烯键有无及顺反异构的差异。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐