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欧美能看的一级片网站，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)鏈日韩国产午夜福利片在线观看，設(shè)計(jì)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12av天堂网。目標(biāo)化合物的合成即：以香草酸為起始原料88综合，與甲醇回流條件下得到4-羥基-3-甲氧基苯甲酸甲酯，然后經(jīng)過醚化、硝化午夜毛片视频高清不卡免费、還原2019偷拍黄色视频精品、環(huán)合反應(yīng)得到6-甲氧基-7-芐氧基喹唑啉-4-酮，然后再經(jīng)氯化a片黄这线免费观看1区、取代苯胺1024国产视频精品欧美一区、脫芐氧基、醚化等反應(yīng)得到目標(biāo)化合物肏屄手机视频播放；目標(biāo)化合物與二乙胺發(fā)生胺取代反應(yīng)得到了TM1国产午夜一级福利毛片视频6，即4-苯氨基-6-甲氧基-7-[2-羥基-3-丙氧基]喹唑啉；通過與奧硝唑發(fā)生醚化反應(yīng)得到TM2日本视频www.色，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]喹唑啉射欧美综合。

Quine of the above criticism is profound and strong,and it stirred up strong reactions and extensive discussion.

奎因的上述詰難是深刻而強(qiáng)有力的，它激起了及其強(qiáng)烈的反響和廣泛的討論国产a片播放网址。

The self-exchange reactions of quinone were studied with AMl and ESR at the sametime,and the solvent effects were also studied.

用半經(jīng)驗(yàn)的AM1方法和ESR技術(shù)分別研究了醌的自交換電子轉(zhuǎn)移反應(yīng)日韩AV操逼，計(jì)算并測定了自交換反應(yīng)的速率常數(shù)一级三级片免费视频，進(jìn)一步研究了溶劑性質(zhì)對電子轉(zhuǎn)移反應(yīng)的影響三级片手机免费看中文视频。

Manganese and cerium is the oxidative reagents usually employed. In recent years, the oxidative free radical reactions of quinone derivatives have been studied in this laboratory.

錳以及鈰是最常使用的氧化性試劑，本實(shí)驗(yàn)室也將錳以及鈰運(yùn)用在醌類化合物的環(huán)合反應(yīng)上18紧网站。

Dioxide quinoxaline formaldehyde semicarbazones and imines were synthesized by the reactions of 1,4-dioxide quinoxaline formaldehyde with aminourea or substituted anilines.

用1欧美黄色午夜，4-二氧喹喔啉甲醛與氨基脲、苯胺无遮无码免费裸交视频暖暖、取代苯胺等反應(yīng)色色黄片，合成了11種1，4-二氧喹喔啉甲醛－縮氨脲和醛亞胺精精国产XXXX视频在线my。

There have been some positive Jewish reactions to the letter this week: Rabbi David Rosen, who advises the chief rabbinate of Israel on inter-faith matters, said the initiative was especially welcome because the "remarkable co-operation and cross-fertilisation" which had often existed between Muslims and Jews had been "tragically overshadowed" by modern politics.

對于本周穆斯林的信件美女下面网站，還是有些猶太人做出了積極的回應(yīng)：拉比。大為538免费精品视频。羅斯（以色列負(fù)責(zé)宗教事務(wù)的猶太法學(xué)博士們的顧問）說這個(gè)舉動(dòng)是值得歡迎的国产一国产一级毛片视频在线，因?yàn)樵嬖谟谀滤沽趾酮q太人間"引人注意的合作與交流"已經(jīng)不幸地被現(xiàn)代政治所遮掩。

The racemization reactions were found to follow apparent first order kinetics.

發(fā)現(xiàn)其消旋反應(yīng)屬於顯見一級動(dòng)力學(xué)過程日日摸日日碰日日添夜夜爽。

Distinguish by using a radioactive isotope or an isotope of unusual mass for tracing through chemical reactions.

用放射性同位素或不尋常質(zhì)量的同位素使元素或原子顯示運(yùn)動(dòng)蹤跡野外免费视频毛片。

Chamomile, for example, can cause allergic reactions in people who are allergic to ragweed.

對豚草類植物過敏的人，飲用甘菊可能就會(huì)引起過敏欲色天天婬香婬色综合网。

A series of chemical reactions in which the product of one is a reactant in the next.

一系列的化學(xué)反應(yīng)国产一级av片精品，其中某次反應(yīng)的產(chǎn)物是下一次反應(yīng)的反應(yīng)物。