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spiro     
相关语句
  
     The title compound has been prepared from spiro (1, 3-dioxolane-2, 2′(6′H)-1′,3′, 4′, 7′, 8′,8′a-hexahydro-5′, 8′aβ-dimethyl-naphthalen)-6-one by dehydrogenation,photorearrangement, reduction and dehydrolysis.
     3,8-二甲基-4,5,6,7-四氢莫-6-酮是由[1,3-二氧戊环-2,2′(6′H)-1′,3′,4′,7′,8′,8′a-六氢-5′,8′a-β-二甲基萘]-6一酮经脱氢,光重排,还原和脱水而制得的。
短句来源
     Crystal Structure of Spiro[1-bromo(S)-4-l-(1R,2S,5R)-menthyloxy-5- oxa-6-oxo-bicyclo[3.1.0]hexane-2,2'(3'diethyl-α-(R)-benzyloxy- phosphonyl-4'-l-(1R,2S,5R)-menthyloxybutyrolactone )]
     [1-溴-4-(1R,2S,5R)-l-孟氧基-5-氧杂-6-氧代双环[3.1.0]己烷-2,2'-(3'-α-膦酸二乙酯基-(S)-苯甲氧基-4'-l-(1R,2S,5R)-孟氧基丁内酯)]的晶体结构
短句来源
     Synthesis of 1,3,5-Tri{3-[2,4,8,10-tetra-oxa-9(3,5-di(2,6-dioxa-4,4-dihydroxymethy lcyclohexyl) phenyl] spiro[5.5] undecyl} benzene for Novel Dendrimer
     新型树状化合物1,3,5-三{3-[2,4,8,10-四氧杂-9(3,5-二(2,6-二氧杂-4,4-二羟甲基环己基)苯基][5.5]十一烷基}苯的制备
短句来源
     Synthesis of Spiro{1-bromo-4-L-menthyloxy-5-oxa-6-oxo-dirings[3.1.0] hexane-2,3′-(4′-furfurylalcohol-5′-menthyloxy-butyrolactone)}and Its Crystal Structure
     {1-溴-4-L-孟氧基-5-氧杂-6-氧代双环[3.1.0]己烷-2,3′-(4′-呋喃甲醇基-5′-孟氧基丁内酯)}的合成及其晶体结构
短句来源
     Synthesis and Crystal Structure of Spiro[isobenzofuran-1 (3H) ,9'-(9H)-2'-dibenzylamino-6'-diethylamino-xanthen]-3-One
     [异苯并呋喃-1(3H),9'-(9H)-2'-N,N-二苄胺基-6'-二乙胺基占吨]-酮-3的合成及晶体结构研究
短句来源
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  螺环
     (?) Spiro compounds (2a) and (2b) were prepared by reaction of 2,3,3-trimethyl-N-(β-hydroxyethyl) indoiium iodide(1) with 3- or 5-nitrosalicylaldehyde inthe presence of piperidine.
     用乙醇作溶剂,在哌啶存在下,通过2,3,3-三甲基-N-(β-羟乙基)吲哚啉碘化物(1)与3-或5-硝基水杨醛反应,分别制得螺环异构体(2a)与(2b)。
短句来源
     A spiro compound(2-(5-chloro-2,2,3,3,4,4,5,5-octafluoro-pentyl)-3-(1-iodineMethyl)-8,8-dimethyl-7,9-dioxa-spirodecane-6,10-dione) has been synthesized through several steps.
     通过多步反应合成了含有一个长链氟烷基的螺环化合物(2-(5-氯-2,2,3,3,4,4,5,5-八氟-戊烷基)-3-(1-碘-甲基)-8,8-二甲基-7,9-二氧杂-螺[4,5]癸烷-6,10-二酮)。
短句来源
     STUDIES ON THE SPIROCOMPOUNDS: SYNTHESIS OF 10-METHYL SPIRO [4.5] DEC-6-EN-6-CARBOXYLIC ACID
     沉香螺环化合物的研究:10-甲基-螺[4.5]-癸-6-烯-6-羧酸的合成
短句来源
     A THEORETICAL STUDY ON THE MECHANISM OF HYDROGENOLYSIS OF SPIRO [2,3] HEXANE
     螺环[2,3]己烷氢解反应机理的理论研究
短句来源
     Synthesis of a new spiro orthocarbonate and its modification on F-44 phenolic epoxy
     一种新螺环单体的合成及对F-44的改性研究
短句来源
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  “spiro”译为未确定词的双语例句
     Methods: Various respiratory functions were determined in six naval professional divers using a Japan made type LAM-25 electronic spiro analyzer and type RVS-409A X-Y recorder.
     方法:用日本产LAM—25型电子呼吸分析仪以及配套的RVS—409A型X—Y记录仪,检测6名海军职业潜水员在绝对压100~800kPa气压下呼吸不同气体介质时多种呼吸功能指标。
短句来源
     Applicaton of Mureinik and Spiro equations to the racemizatlon of (+)D-Co(Phen)33+ in aqueous solution through the outersphere electron transfer reaetion is reported in this paper.
     应用Mureinik和Spiro方程到通过外球电子转移的(+)D-Co(phen)_3~(3+)外消旋反应,证明了电子转移反应对Co(Ⅲ)和Co(Ⅱ)络离子的浓度是一级的,V=k_2[Co(Ⅲ)][Co(Ⅱ)].
短句来源
     Spiro nolactone-prevention group consisted of 40 rats that were given 100 mg·kg -1 spironolactone per day, by the same methods of making models as those of the model group.
     螺内酯预防组 (40只 ) :造模方法同模型组 ,螺内酯 10 0mg·kg- 1·d- 1灌胃。
短句来源
     Study on Photochromic Effect in Spiro Oxazine Dye Doped Polymeric Films
     Spiro-Oxaziue染料掺杂高分子材料光致变色效应的研究
短句来源
     On the basis of geometry optimized by quantum chemical PM3 method, electronic spectrum of 1,3 squaric acid tumbled in benzene spiro conjugated molecules was discussed by INDO/CI method. The second order optical susceptibilities β ijk and β μ of benzene spiro conjugated molecules tumbled with 1,3 squaric acid were calculated by INDO/CI SOS program.
     以量子化学半经验方法 PM3优化构型为基础 ,利用 INDO/ CI方法研究了嵌入 1 ,3-方酸的苯螺旋共轭分子的电子光谱 ,同时利用 INDO/ CI-SOS程序计算了它们的二阶非线性光学系数 βijk和 βμ 值 ,从而探索分子结构与电子光谱及非线性光学性质的关系 .
短句来源
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  spiro
Synthesis and Microbiological Evaluation of Novel [N-Acetyl-2,6-Diarylpiperidin-4-YL]-5-Spiro-4-Acetyl-2-(Acetylamino)-Δ2-1,3,4-
      
Photochromic Transformations of Spiro Compounds: 1.
      
Photochromic Transformations of Spiro Compounds: 2.
      
The kinetics of photocoloration of spiro compounds under continuous UV irradiation were analyzed.
      
Photonics of nanostructured systems based on photochromic spiro compounds
      
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Hydrolysis of 1,1′-dicyanobicyclohexyl (Ⅲ) afforded for the first time the corresponding dicarboxylic acid (Ⅴ) and its anhydride (Ⅵ). Upon the reduction of the dicarboxylic acid with lithium aluminum hydride, the dihydric alcohol (Ⅶ) was obtained. The latter was dehydrated with sulphuric acid to give the spiro compound (Ⅷ).

从1,1'-二氰基联环己烷(Ⅲ)经水解初次得到相应的二羧酸(Ⅴ)及酸酐(Ⅵ),由二元酸(Ⅴ)经氢化锂铝还原得二元醇(Ⅶ),后者用硫酸脱水得螺烷(Ⅷ).

Bretylium (Ⅰ) and guanethidine (Ⅱ) were reported to have protracted antihypertensive properties with the capacity to block the transmission at peripheral adrenergic nerve terminals. It appears interesting to study the relationship between their chemical constitutions and pharmacological activities. The present work deals with the structural modification of Ⅰ and Ⅱ.1-o-Chlorobenzylhexamethylenimine and 1-o-chlorobenzylheptamethylenimine, on treatment with ethyl iodide, o-chlorobenzyl bromide and methyl p-toluenesulphonate,...

Bretylium (Ⅰ) and guanethidine (Ⅱ) were reported to have protracted antihypertensive properties with the capacity to block the transmission at peripheral adrenergic nerve terminals. It appears interesting to study the relationship between their chemical constitutions and pharmacological activities. The present work deals with the structural modification of Ⅰ and Ⅱ.1-o-Chlorobenzylhexamethylenimine and 1-o-chlorobenzylheptamethylenimine, on treatment with ethyl iodide, o-chlorobenzyl bromide and methyl p-toluenesulphonate, respectively, gave the corresponding quaternary ammonium salts (Ⅲa, b, c, e); N,N-cyclohexa-methylene-N',N'-cycloheptamethylenethylenediamine was treated with o-chlorobenzylbromide,forming bis-quaternary ammonium salts (Ⅲd).β-Substituted-aminoethylhydrazines (Ⅳa,b) and N,N-cyclohexamethylene-N',N'-cycloheptamethylenethylenediamine (Ⅳf) were formed when 1-β-chloroethylhexamethylenimine and 1-β-chloroethylheptamethylenimine were treated with hydrazine hydrate and heptamethylenimine respectively. Condensation of hydrazine hydrate and hexamethyleniminoacetal and subsequent reduction of the resulting azine compound by means of lithium aluminium hydride afforded N,N'-bis-(β-hexa-methyleniminoethyl)hydrazine (Ⅳc). Hexamethylenimine or heptamethylenimine was converted into the corresponding sym-ethylenediamines (Ⅳd, e), on interaction with ethylene bromide. Di-spiro-bis-quaternary ammonium salts (Ⅵ) were obtained through cycloquaternization of 1-β-chloroethylhexamethylenimine and quaternization of substituted ethylenediamines with ethylene bromide or trimethylene bromide.

1-邻氯苄基氮七环和1-邻氯苄基氮八环与碘乙烷、邻氯苄基溴或对甲苯磺酸甲酯分别反应,生成相应的季铵盐(Ⅲa,b,c,e);N,N-环六亚甲基-N',N'-环七亚甲基-1,2-乙二胺与邻氯苄基溴反应,得到双季铵盐(Ⅲd).1-β-氯乙基氮七环和1-β-氯乙基氮八环与过量的水合肼或氮八环作用,各自得β-取代氨基乙肼(Ⅳa,b)和1,2-乙二胺化合物(Ⅳf). 水合肼与1-氮七环基乙醛缩合,生成的连氮化合物用氢化铝锂还原得N,N'-双-(β-1-氮七环基乙基)肼(Ⅳc).由1,2-二溴乙烷与氮七环或氮八环反应,得对称乙二胺衍生物(Ⅳd,e).借1-β-氯乙基氮七环双分子环合季铵化和1,2-乙二胺衍生物与二溴代烷的反应,得螺环双季铵盐(Ⅳ).

Detailed procedures of the total synthesis of the less toxic, more effective antitumor camptothecinoid alkaloids, dl-10-hydroxycamptothecin and dl-10-methoxycamptothecin, are described.Based on the previous works on the total synthesis of dl-camptothecin (dl-1), the following procedures were devised. The acetal 4 which was prepared from 2-nitro-5-methoxybenzaldehyde with ethylene glycol followed by hydrogenation, was condensed with 1', 2', 3', 5'-tetrahydro-5'-oxo-6'-cyano-7'-(1-carbethoxy) propyl-spiro...

Detailed procedures of the total synthesis of the less toxic, more effective antitumor camptothecinoid alkaloids, dl-10-hydroxycamptothecin and dl-10-methoxycamptothecin, are described.Based on the previous works on the total synthesis of dl-camptothecin (dl-1), the following procedures were devised. The acetal 4 which was prepared from 2-nitro-5-methoxybenzaldehyde with ethylene glycol followed by hydrogenation, was condensed with 1', 2', 3', 5'-tetrahydro-5'-oxo-6'-cyano-7'-(1-carbethoxy) propyl-spiro (1, 3-dioxolene-2, 1-indolizine) (5) to give 2-methoxy-7- (1-carbethoxy) propyl-8-cyano-9, 11-dihydro-9-oxo-indolizino (1, 2-b) quinoline (6)in 66 % yield. It was hydrogenated under atmospheric pressure in a mixture of glacial acetic acid and acetic anhydride with Raney Nickel as catalyst to give 2-methoxy-7-(1'-carbethoxy) propyl-8-acetamidomethyl-9, 11-dihydro-9-oxo-indolizino(1, 2-b)quinoline(7). Without purification, the crude 7 was treated directly with sodium nitrite to afford 2-methoxy-7-(1'-carbethoxy) propyl-8-acetoxy-9, 11-dihydro-9-oxo-indolizino (1, 2-b)quinoline (8). On hydrolysis of compound 8 with dilute sulphuric acid, 10-metboxy-20-deoxycamptothecin (9) was obtained in 62% overall yield based on compound 6. Compound 9 was then oxidized by air in dimethylformamide solution in the presence of cupric chloride and dimethylamine to give dl-10-methoxycamptothecin(dl-3)with a yield of 62%. dl-10-hydroxycamptothecin (dl-2)was obtained by hydrolysis of dl-3 with 48% hydrobromic acid, with a yield of 65%.In order to avoid using silicagel chromatography for the purification of dl-2 and dl-3, an alternative method of working up was developed. The crude dl-2 produced during the hydrolysis of crude dl-3 with hydrobromic acid may be directly acetylated with acetic anhydride-pyridine to give a diacetyl derivative(10) which was then purified by recrystallization. Sufficiently pure dl-2 was obtained upon hydrolysis of 10 with hydrochloric acid-acetic acid. However, this alternative method gave a lower yield.The synthetic dl-2 and dl-3 thus prepared were identical in the TLC R_f-value, UV, NMR and MS spectra with those of the natural alkaloids. Pharmacological tests revealed that the synthetic dl-2 and dl-3 showed similar activity as the natural alkaloids on Ehrlich ascites carcinoma, ascitic reticule-cell sarcoma or lymphosarcoma in mice at an equi-toxicity dosage level. One of the synthetic alkaloids dl-2, is subjected to clinical trials.

本文详细报道以1′,2′,3′,5′-四氢-5′-氧代-6′-氰基-7′(1-乙氧羰基)丙基-螺(1,3-二噁茂烷-2,1′- 吲嗪)为原料,经6步及5步反应合成dl-10-羟基喜树碱及dl-10-甲氧基喜树碱的方法。合成产品与天然生物碱的薄板层析、紫外光谱、核磁共振谱和质谱均一致。dl-10-羟基喜树碱正在临床试用中。

 
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