取代
- 基本解釋 (translations)
- displacement · replace · substituent · substitute · substituting · substitutions · supersede · supersedure · supersession · outplace · supersedence · supercede · replaced · replaces · substitutes · superseded · supersedes · superseding · displacements
- 詞組短語
- replace by · replace with · take the place of
- 更多網(wǎng)絡(luò)例句與取代相關(guān)的網(wǎng)絡(luò)例句 [注:此內(nèi)容來源于網(wǎng)絡(luò),僅供參考]
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This invention provides compounds of Formula; wherein: R is a moiety selected from the group: and n is an integer of 1 or 2; R is selected from hydrogen, amino,-NRR, alkyl of 1 to 12 carbon atoms optionally substituted, aryl of 6, 10 or 14 carbon atoms optionally substituted, alkenyl of 2 to 12 carbon atoms optionally substituted, alkynyl of 2 to 12 carbon atoms optionally substituted, halogen, and a 5 to 10 membered heteroaryl ring optionally substituted, having 1 to 4 heteroatoms independently selected from N, O and S; R is selected from hydrogen, alkyl of 1 to 12 carbon atoms optionally substituted, aryl of 6, 10 or 14 carbon atoms optionally substituted, alkenyl of 2 to 12 carbon atoms optionally substituted, vinyl, alkynyl of 2 to 12 carbon atoms optionally substituted and halogen; R is H, alkyl of 1 to 12 carbon atoms optionally substituted, cycloalkyl of 3 to 8 carbon atoms, bicycloalkyl of 5 to 10 carbon atoms or aralkyl optionally substituted; R is OH or -OH; R and R are each independently H or alkyl of 1 to 12 carbon atoms or when optionally taken together with the nitrogen atom to which each is attached form a 3 to 8 membered saturated heterocyclyl ring; R is alkyl of 1 to 12 carbon atoms optionally substituted; or a tautomer or pharmaceutically acceptable salts thereof.
本發(fā)明提供式的化合物www视频一区;其中:R 1 為選自基團和的部分亚洲视频欧美视频在线观看;n為整數(shù)1或2;R 2 選自氫影音先锋AV我色资源、氨基三级片网站伊人久久、-NR 6 R 7 可以看黄色一级片的网站、具有1到12個碳原子的視情況經(jīng)取代的烷基欧美激情另内三区、具有6個小电影A片、10個或14個碳原子的視情況經(jīng)取代的芳基欧美色色.com、具有2到12個碳原子的視情況經(jīng)取代的烯基、具有2到12個碳原子的視情況經(jīng)取代的炔基、鹵素和具有1到4個獨立地選自N日夲一级片、O和S的雜原子的視情況經(jīng)取代的5元到10元雜芳基環(huán);R 3 選自氫黄色网站传送门、具有1到12個碳原子的視情況經(jīng)取代的烷基搞黄刺激网站、具有6個、10個或14個碳原子的視情況經(jīng)取代的芳基日韩不卡在线视频、具有2到12個碳原子的視情況經(jīng)取代的烯基日韩性生活网、乙烯基、具有2到12個碳原子的視情況經(jīng)取代的炔基和鹵素欧洲黄色在线播放视频;R 4 為H加勒比东京热久久香蕉、具有1到12個碳原子的視情況經(jīng)取代的烷基、具有3到8個碳原子的環(huán)烷基一级黄片观看、具有5到10個碳原子的雙環(huán)烷基或視情況經(jīng)取代的芳烷基在线免费观看av大全;R 5 為OH或-OH 8 ;R 6 和R 7 各自獨立地為H或具有1到12個碳原子的烷基26uuu国产精品,或當(dāng)視情況與其所連接的氮原子連接在一起時形成3元到8元飽和雜環(huán)基環(huán)高清国产一级婬片A片免费;R 8 為具有1到12個碳原子的視情況經(jīng)取代的烷基;或其互變異構(gòu)體或醫(yī)藥學(xué)上可接受的鹽一极一黄一区。
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Experimental results show that the different substituted location and different substituted group on benzene cycle would result in the diversity of reduction properties of substituted aryl nitrobenzene. Substituted nitrobenzenes with withdrawing group will be reduced at more positive potential, while those with repelling group will be reduced at more negative potential. In addition, the reduction potential of nitro group of o-nitrobenzene shifts more negative due to the effect of space resistance.
結(jié)果表明av在线免,芳族硝基化合物在苯環(huán)上的取代基位置不同以及在相同位置上取代基的種類不同均可使各芳族硝基化合物的電還原性能發(fā)生較大差異:吸電子取代基在電還原過程中電位較正,推電子取代基的電還原電位較負(fù):鄰位取代基在反應(yīng)過程中由于空間位阻效應(yīng)日批视频免费看40分钟,苯環(huán)上的硝基在電還原時電位往負(fù)方向移動娇喘av。
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Synthesis of target compounds namely: to vanillic acid as the starting material with methanol under reflux conditions for 4 - hydroxy -3 - p-methyl, then ether, and nitration, reduction, cyclization reaction 6 - methoxy -7 - benzyloxy-quinazoline -4 - one, and then by the chloride in place of aniline, benzyloxy-off, such as etherification reaction of the target compounds; target compounds with the second and third occurrence of substitution reactions of amines by the TM1, that is, 4 - amino-benzene -6 - methoxy -7 - [2 - hydroxy -3 -(N, N-diethyl amino) oxy c] quinazoline; with ether occurred Ornidazole reaction of TM2, namely, 4 - amino-benzene -6 - methoxy -7 - [2 - hydroxy -3 -(2 - methyl -5 - nitroimidazole) C oxy] quinazoline.
本論文以嘌呤類似物喹唑啉為母核,分別在其4位和7位引入結(jié)構(gòu)多樣的取代苯氨基和柔性側(cè)鏈久草黄网站,設(shè)計了一系列4-取代苯胺基-6-甲氧基-7-(2-羥基取代丙氧基)喹唑啉類化合物综合国产一区。目標(biāo)化合物的合成即:以香草酸為起始原料,與甲醇回流條件下得到4-羥基-3-甲氧基苯甲酸甲酯成年人在线免费视频网站,然后經(jīng)過醚化91天色、硝化、還原99精品视频精品、環(huán)合反應(yīng)得到6-甲氧基-7-芐氧基喹唑啉-4-酮欧美人妻少妇精品视频一区,然后再經(jīng)氯化、取代苯胺沐浴偷拍一区二区视频、脫芐氧基免费的国产黄网站和视频、醚化等反應(yīng)得到目標(biāo)化合物;目標(biāo)化合物與二乙胺發(fā)生胺取代反應(yīng)得到了TM1AAA性爱视频在线,即4-苯氨基-6-甲氧基-7-[2-羥基-3-丙氧基]喹唑啉一级毛片视频免费入口;通過與奧硝唑發(fā)生醚化反應(yīng)得到TM2干美女阴部视频一区,二区,即4-苯氨基-6-甲氧基-7-[2-羥基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉。
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The present invention relates to compounds of formula wherein R is hydrogen, lower alkyl, lower alkoxy, halogen or lower alkyl substituted by halogen; R is hydrogen or halogen; or R and R are together with the carbon atom to which they are attached -CH=CH-CH=CH-; R is hydrogen, lower alkyl, phenyl optionally substituted by halogen, or is hetaryl, optionally substituted by lower alkyl; R is hydrogen, lower alkyl, phenyl, benzyl, lower alkenyl, lower alkoxy, phenyloxy, benzyloxy, S-lower alkyl, halogen, CN, lower alkyl substituted by halogen or O-lower alkyl substituted by halogen; R is hydrogen or lower alkyl, aryl is phenyl or naphthyl; n is 1, 2 or 3; m is 1 or 2; and pharmaceutically acceptable acid addition salts and tautomeric forms thereof.
本發(fā)明涉及式化合物及其可藥用的酸加成鹽和互變異構(gòu)形式久久AAAA级黄色视频,其中R 1 是氫天天摸天天摸色综合舒服网、低級烷基、低級烷氧基免费观看无码视频、鹵素或被鹵素取代的低級烷基黄毛片在线观看;R是氫或鹵素;或R 1 和R與它們連接的碳原子一起是-CH=CH-CH=CH-天堂无码AV无线AV;R 2 是氫色悠悠久久久综合色鬼、低級烷基、任選被鹵素取代的苯基或者是任選被低級烷基取代的雜芳基色色色资源一区二区;R 3 是氫国产直播视频A片、低級烷基、苯基欧美日韩精品巨乳中文字幕、芐基综合视频一区二区、低級鏈烯基、低級烷氧基又大又粗的免费视频、苯氧基免费一级a片精品久久网、芐氧基、S-低級烷基在线精品视频播放、鹵素九九高清色综合免费视频在线观看、CN、被鹵素取代的低級烷基或被鹵素取代的O-低級烷基丝袜巨乳电影;R 4 是氫或低級烷基超碰在线播放平台,芳基是苯基或萘基;n是1在线a亚洲视频播放在线观看、2或3色呦呦在线国产亚洲;m是1或2。
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The bay area has no substituent and has electron-withdrawing groups,such as bromine atom,cyano-group and 4-formyl phenoxy group compounds have strong absorption in 525 nm,when excitated them,they have strong yellow and salmon pink luminescence bettwen 538 and 566 nm.When introduce electron-donating substituents,such as phenoxy group,morpholinyl,piperidinyl and n-butylamino group,the absorption bathochromic shift while the electron-donating ability is improved,bettwen 536 and 692 nm have strong absorption,reach to the near-infrared region. When excitated them,only the phenoxy group compound has strong salmon pink luminescence in 572 nm,the others have no fluorescence.
其中www.麻豆视频.com,港灣位無取代的以及含吸電基團(—Br华人永久免费在线视频、—CN、對甲跖访酪磺肥悠狄欢?;窖趸?化合物在525 nm左右處均有很強的吸收ε>10~4M~(-1cm~(-1)成年片色大黄全免费网站久久,當(dāng)光激發(fā)時,港灣位無取代国产亚洲日韩在线人成、溴代和氰基取代物發(fā)出538~547 nm的強烈黃色熒光欧美日韩精品福利在线观看,對甲酰基苯氧基取代物則發(fā)出566 nm的強烈橙紅色熒光;含供電基團(苯氧基一级视频在线观看免费播放、嗎啉基人人干,人人草、哌啶基、正丁氨基)化合物隨著供電子能力的增強99久久久无码,吸收發(fā)生紅移日韩欧美久久,在536~692 nm處均有很強的吸收ε>10~4M~(-1cm~(-1)性色AV免费不卡无码,達到了近紅外區(qū)狂野欧美男人的天堂网站,當(dāng)光激發(fā)時,只有苯氧基取代物發(fā)出572 nm的強烈橙紅色熒光国产v在线在线观看视频免费、一,而含氮供電基取代物均發(fā)生了熒光淬滅最新狼友网址。
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The results of bioassay suggest that 2-methylthio-6-methyl-4-substituted pyrimidine and 4, 6-dimethoxy-2-substituted pyrimidine derivatives show herbicidal activity. In these target compounds, 4, 6-dimethoxy-2-substituted pyrimidine benzylamine and 4, 6-dimethoxy-2-Substituted pyrimidine benzylidene amine exhibit good herbicidal activity, and the herbicidal will be affected by the substituents in the benzene ring.
對分子庫中的目標(biāo)分子進行了生物活性篩選研究,發(fā)現(xiàn)其中的2-甲硫基-6-甲基-4-取代嘧啶衍生物和4A级毛片免费观,6-二甲氧基-2-取代嘧啶類化合物顯示出除草活性国产尤物视频在线,其中4,6-二甲氧基-2-取代嘧啶芐胺類化合物和4国产在线精品99一区,6-二甲氧基-2-取代嘧啶亞芐胺類化合物具有較好的除草活性新久久黄色视频,而且其活性和苯環(huán)上的取代基有關(guān)。
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The results showed that the degree of butyryl substitution of CAB increased and the degree of acetyl substitution of CAB decreased as the activation time increased. The degree of substitution of CAB changed slightly after the esterification went along about 2h.
隨著活化時間的增加色喲哟,CAB的丁酯取代度會逐漸增大久久综合一色综合久久小蛇,乙酯取代度會逐漸減小日韩在线vip福利电影网;酯化反應(yīng)2h后18禁美女裸体黄色网站,CAB取代度變化不大;CAB的丁酯取代度隨著反應(yīng)體系中丁跞蘸寂访郎迹基摩爾分?jǐn)?shù)的增加而增大免费色网,而乙酯取代度則隨著丁酰基摩爾分?jǐn)?shù)的增加而減小黄色录像一区二区三区中文字波。
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By means of GPC,IR,GC-MS,~(13)CNMR,~1HNMR,Methylation analysisetc,structural properties of PST-1 were identified as follows:The Mwof PST-1 was 3.44×10~6 Da and its optical rotation was _D~(20)=+0.110°(c0.1, H_2O); PST-1 constituted 8 simple sugars and the molar ratio was 2,4-Dimethoxy-Mannose:Rhamnose:Ara-binose:Xylose:Galactose:D-Galacturonic acid:Mannose:D-glucuronic acid=2%:5%:24%:9%:3%:1%:46%:10%;The chief bone of PST-1 was 1,3,6-linked-β-D-Man residue and the side chains contained Furanoid and Pyranoid residues.
結(jié)合GPC国内特一级A片黄片、旋光度測定、IR黄片在线免费没播放、GC-MS青青青草视、~(13)CNMR、~1HNMR超碰在人人操、高碘酸氧化法精品在线精品视频、Smith降解以及甲基化方法等分析測試方法,得到PST-1的單糖組成及結(jié)構(gòu)表征99久久免费看,视频,實驗結(jié)果如下:紅豆杉多糖PST-1是重均分子量為3.44×10~6 Da的支鏈多糖黄色高清无码在线,旋光度為20D=+0.110~0(c0.1,H_2O)中文字幕在线更新资源站;PST-1單糖組成為:2欧洲性爱一级二级网站视频,4-Dimethoxy-Mannose:Rhamnose:Arabinose:Xylose:Galactose:D-Galacturonic acid:Mannose:D-glucuronic acid=2%:5%:24%:9%:3%:1%:46%:10%特级毛视频免费观看;PST-1的骨架結(jié)構(gòu)為:具有1,3午夜熟女毛片,6-連接的β-D-甘露糖殘基骨架久青草性生活一级片,側(cè)鏈分枝包括非還原末端的呋喃型α-L-阿拉伯糖殘基、吡喃型α-L-阿拉伯糖殘基美女裸体日韩成人网站大全、β-D-木糖殘基欧美老妇性野外久久、β-D-甘露糖殘基、2亚洲日韩一区二区三区网站,4-二氧甲基-β-D-甘露糖殘基和α-D-葡萄糖醛酸殘基欧美性爱网站在线免费;側(cè)鏈的糖殘基也可能存在2,5-二氧-取代呋喃型α-L-阿拉伯糖基国产AV大学生情侣AV、3-氧-取代的β-D-木糖殘基日韩精品国语在线观看视频、6-氧-取代的α-D-半乳糖醛酸殘基、6-氧-取代的α-D-半乳糖殘基六六六日黄色视频、4-氧-取代的α-D-葡萄糖醛酸殘基和2-氧-取代的α-L-鼠李糖殘基www.影音资源.com,同時后者也可能穿插在主鏈上。
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The results of calculation will be fundmentally consistent with the experimental values.In addition, we calculated dibenzene chromium and its derivatives, ferroceneand its derivatives. The former had higher symmetry. We studied the substituenteffects by calculating their NMR spectra. The results show that: when we add asubstitute group on one ring of dibenzene chromium, the substitute group will affecttwo benzene rings. The effect is similar to the effect of branched alkanes, namely:the effect on neighbouring groups has transmissibility. Furthermore, the nearer theneighbouring group is, the stronger the effect is. This effect is observed not only onthe substituted ring, but also on the unsubstituted ring.
此外AV永久免费网站在线观看大全,我們重點計算了二苯鉻及其衍生物和二茂鐵及其衍生物的核磁共振譜观看免费黄色网站免费,其中二苯鉻及其衍生物選擇的是對稱性較好的體系,通過計算其核磁共振四川師范大學(xué)碩士學(xué)位論文譜九九草在线乱码av,探討其取代基效應(yīng)午夜免费看三级片,結(jié)果表明:在二苯鉻的一個環(huán)上引入取代基后,取代基對兩個苯環(huán)的影響欧美激情視頻,類似于支鏈院烴引入取代基后的影響:即對鄰近基團的影響有傳遞性三级片91韩国自拍,并且對離得近的作用強,對離得遠的作用弱女人与拘猛交69,這種作用不僅體現(xiàn)在連有取代基的環(huán)上精品偷拍第50页视频,也體現(xiàn)在沒有帶取代基的環(huán)上。
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The reaction result showed that the reactivity of Grignard reagent was different in THF and diethyl ether when subjected to substitution reaction, which gave three products with different substitution degree.
研究表明欧美y,生成的Grignard試劑在THF和乙醚中的反應(yīng)性不同欧美亚洲欧美亚洲日韩中文视频,與甲基三硅烷或四乙氧基硅烷發(fā)生取代反應(yīng)時生成不同取代度的產(chǎn)物,控制反應(yīng)條件可得到以單取代国产精品-色哟哟、雙取代或三取代硅烷為主的產(chǎn)物亚洲欧美中文日韩V日本。
- 更多網(wǎng)絡(luò)解釋與取代相關(guān)的網(wǎng)絡(luò)解釋 [注:此內(nèi)容來源于網(wǎng)絡(luò),僅供參考]
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Replace Temp with Query:(以查詢?nèi)〈鷷簳r變數(shù))
Replace Subclass with Fields(以欄位取代子類別) 232 | Replace Temp With Query(以查詢取代暫時變數(shù)) 120 | Replace Type Code with Class(以類別取代型別代碼) 218
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Replace Subclass with Fields:(以欄位取代子類別)
Replace Record with Data Class(以資料類別取代記錄) 217 | Replace Subclass with Fields(以欄位取代子類別) 232 | Replace Temp With Query(以查詢取代暫時變數(shù)) 120
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Replace Color:(取代顏色):取代某特定的顏色
Bitmap (點陣圖):影像以黑白兩種色彩顯示 | Replace Color (取代顏色):取代某特定的顏色 | Selective Color (選取顏色):可以加上或減少某特定的顏色
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Replace All:全部取代
replace 取代 | replace all 全部取代 | replace in files 多重檔案取代
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replaceable character:可取代的字元
replaceable parameter data 可取代的參數(shù)資料 | replaceable character 可取代的字元 | replaceable text 可取代的文字
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replaceable character:可取代的字符
replace in projects 專案中取代 | replaceable character 可取代的字符 | replaceable character data 可取代的字符數(shù)據(jù)
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substituent:取代者;取代基
substation 分站;變電所;分臺;用戶話機 | substituent 取代者;取代基 | substitutability analysis 置換分析
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substituent effect:取代基效應(yīng) 取代基效應(yīng)
substituent 取代基 取代基 | substituent effect 取代基效應(yīng) 取代基效應(yīng) | substitute 替代藥 替代藥
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substituting agent:取代劑
substituted 取代的;代替的 | substituting agent 取代劑 | substituting group 取代基
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Replaces:取代
這種矛盾性關(guān)系是沖突(Conflicts)與取代(Replaces),取代的主要用途是新版用於取代舊版,絕大部分的函式庫可以新舊并存,但是部份軟體不可行,有時候是套件名稱更改,因此新名稱取代舊名稱軟體,沖突則是兩種不同的軟體或軟體的版本水火不容,