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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="fykryub" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shbdyykj/637439115867680637/3418900.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="bkbxdkb" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>手性氨基膦哌啶應(yīng)用,哌啶</p><p><span>***更新：</span>2021-01-16 03:15:26</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="fewyard" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海畢得醫(yī)藥科技有限公司</a></p><p><span>聯(lián)系人：</span>邱鴻婷</p><p><span>郵箱: </span>3003495196@qq.com</p><p><span>電話: </span>13818398014</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>https://www.bidepharm.com</p><p><span>手機: </span>021-61629020</p><p><span>地址: </span>翔殷路128號11號樓A座101室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="bkb7ic8" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="pnedjlr" class="box"><p><p style="text-indent:25px">由于其高的環(huán)應(yīng)變和反應(yīng)性，氮丙啶通常被認(rèn)為是用于合成五元和六元雜環(huán)的有價值的底物。與活化的氮丙啶（在氮原子上帶有一個吸電子基團(tuán)）相反，未活化的氮丙啶（在氮原子上帶有一個供電子基團(tuán)）在文獻(xiàn)中受到的關(guān)注較少。然而，未活化的氮丙啶與它們的活化對應(yīng)物相比通常顯示出不同的反應(yīng)性和適用性，為選擇性合成多種新的（雜環(huán)）氮化合物提供了有趣的機會。非活化的氮丙啶向重要的重要結(jié)構(gòu)如吡咯烷和哌啶的已知轉(zhuǎn)化的主要部分涉及將氮丙啶氮原子摻入新形成的氮雜雜環(huán)中。然而，仍然有選擇地將未活化的氮丙啶選擇性轉(zhuǎn)化為吡咯烷，哌啶和其他雜環(huán)的策略，其中氮丙啶單元被部署為親電子部分，并在遠(yuǎn)處被（原位生成的）親核雜原子進(jìn)行開環(huán)。仍然是一個鮮有研究的研究領(lǐng)域。2-（2-氰乙基）氮丙啶和2-芳基-3-（2-氰乙基）氮丙啶被用作LiAlH4處理后In（OTf）（3）介導(dǎo)的區(qū)域和立體選擇性環(huán)重排的底物，手性氨基膦哌啶應(yīng)用，提供了多種分別新穎的2-（氨基甲基）吡咯烷和3-氨基哌啶，手性氨基膦哌啶應(yīng)用，手性氨基膦哌啶應(yīng)用。所獲得的3-氨基哌啶的進(jìn)一步合成精制導(dǎo)致形成獨特且未經(jīng)探索的構(gòu)象受限的咪唑烷酮和二酮哌嗪骨架。P = C鍵作為三元雜環(huán)陽離子的砌塊：合成，結(jié)構(gòu)和機械研究。手性氨基膦哌啶應(yīng)用</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="手性氨基膦哌啶應(yīng)用,哌啶" src="https://tyunfile.71360.com/WaterMark/UploadFile/shbdyykj/637439115867680637/3418900.png"></div><p style="text-indent:25px">哌啶，無色液體。哌啶,用作溶劑、有機合成中間體、環(huán)氧樹脂交聯(lián)劑、縮合催化劑等。有像胡椒的氣味。能與水混溶，溶于乙醇、**、**及苯。35%哌啶的恒沸水溶液沸點為92.8℃；pKa11.1；堿性略強于吡啶。與酸成鹽，化學(xué)性質(zhì)與脂肪仲胺相似一種強有機堿，與無機酸作用生成鹽。能與蒸汽一同揮發(fā)。用于制藥，主要是鹽酸哌啶和硝酸哌啶（片狀晶體，熔點110℃）。也用于其他有機合成，并用作環(huán)氧樹脂的熟化劑等。由吡啶經(jīng)氫化而制得。具有較強的還原性。Binap相關(guān)哌啶結(jié)構(gòu)Ala-Glu / IGLN模擬物的設(shè)計與合成：假肽的雜環(huán)基塊。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="手性氨基膦哌啶應(yīng)用,哌啶" src="https://tyunfile.71360.com/WaterMark/UploadFile/shbdyykj/637439115881254773/2914049.png"></div><p style="text-indent:25px">烯酮已引起人們越來越多的興趣，特別是環(huán)狀的β-烯酮，這是重要的中間體，已被證明是用于合成各種雜環(huán)和天然產(chǎn)物的通用結(jié)構(gòu)單元。 N位和β位是它們活潑的位置。 β-烯胺酮充當(dāng)雙親核試劑，是構(gòu)建雜環(huán)化合物（例如生物堿結(jié)構(gòu)中常見的基元）的吡啶化合物，嘧啶，吲哚利茲定，喹唑烷和吡咯衍生物的合適平臺。.相關(guān)報道指出，通過其雙電子態(tài)度驅(qū)動的α，β-不飽和琺瑯酮的新反應(yīng)性。實驗介紹未開發(fā)的α-烯喃酮合成合劑，并揭示這些砌塊的異常功能。這種新概念的可行性在烯喃酮前體的直接官能化中證明了烷基化; 1,2- 1,3-或1,4-1和C-O鍵形成。通過通過易于易于易于常見的常見前體的控制式環(huán)化來介紹一般和潛在的適用性。新型鍵α-烯尼酮合成酮的快速組成產(chǎn)生了物質(zhì)，亞己孔，喹啉酮和喹啉醇的組裝，以序列和化學(xué)選擇。</p><p style="text-indent:25px">在堿性催化劑存在下，用適當(dāng)?shù)碾一衔?3a-c環(huán)化在堿性催化劑存在下產(chǎn)生相應(yīng)的6-（2-取代 - 吡啶蛋白-6-基）-2-苯基硫胺[2,3-d]嘧啶15a-c 。化合物15C可以用適當(dāng)?shù)摩?鹵代羰基化合物16a-d來環(huán)化，得到相應(yīng)的6-（2-取代 - 咪唑[1,2-a]嘧啶-7-基-2-苯基硫蛋白-7-苯基硫蛋白-7-2 -2-苯基噻吩[2,3-D.嘧啶17A-D。另一方面，吡唑洛[1,5-A]嘧啶20a-c，吡啶（嘧啶[2,3：4,3]吡唑[1,5-a]嘧啶22a-c，pyrido [4,5： 4,3]吡唑啉[1,5-a]嘧啶24,1,2,4-三唑[1,5-a]嘧啶26a，1,2,3,4-四唑[1,5-a]嘧啶衍生物26b也通過烯胺酮衍生物1的髓鞘分衍生物1用適當(dāng)?shù)?（3） - 氨基 - 吡唑衍生物18a-c，21a-c，23,3-氨基-1,2,4-三唑25a和5-氨基 - 酸條件下的1H-四唑25B。3,3,3-三氟氟化物與脒的反應(yīng) - 新型三氟甲基取代的雜環(huán)基塊。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="手性氨基膦哌啶應(yīng)用,哌啶" src="https://tyunfile.71360.com/WaterMark/UploadFile/shbdyykj/637439115877016554/6531512.png"></div><p style="text-indent:25px">許多吡啶硫酮具有生物活性。考慮到對利用容易獲得的烯胺酮作為起始原料開發(fā)多官能取代的雜芳族化合物的有效合成的興趣。因此，用氰基硫代乙酰胺或氰基乙酰胺處理烯胺酮3得到吡啶硫酮5a和吡啶酮5b?；衔镌诨亓鞯囊掖尖c中與α-鹵代酮反應(yīng)，得到噻吩并吡啶衍生物。化合物5a與碘甲烷反應(yīng)得到2-甲基硫代吡啶。吡啶硫酮5a與二甲基甲酰胺-二甲基乙縮醛縮合得到加合物，與水合肼得到?；衔?a與芳基亞甲基腈反應(yīng)得到苯乙烯基衍生物14a-d?；衔?4a-d也是在相同條件下由5a與芳族醛縮合制備的。噻吩并吡啶衍生物9a-d與原甲酸三乙酯，乙酸酐，二硫化碳和亞硝酸鈉的回流，分別得到化合物。氨基吡唑12在回流的DMF中與二甲基氨基苯乙酮鹽酸鹽24或烯胺酮30反應(yīng)，得到化合物26a-d?；衔锱cDMF-DMA反應(yīng)得到，其與化合物反應(yīng)得到直接由12與烯胺酮反應(yīng)制備的38 2.用亞硝酸將12重氮化，然后與不同的活性亞甲基試劑偶聯(lián)，得到吡啶并噻吩并三嗪42a，b。亞芐基苯乙酮與12的反應(yīng)產(chǎn)生吡啶并吡唑并嘧啶44。化合物12也直接與活性亞甲基反應(yīng)，得到吡啶并吡唑并嘧啶衍生物46a，b。烯丙腈作為雜環(huán)合成中的砌塊。SYNPHOS相關(guān)哌啶應(yīng)用現(xiàn)狀</p><p style="text-indent:25px">1-（N，N-二甲基氨基）-2-（N-苯基氨基?；?1-丁烯-3-作為合成雜環(huán)化合物的砌塊。手性氨基膦哌啶應(yīng)用</p><p style="text-indent:25px"> 4-氯-2-氟-5-硝基苯甲酸是一種可在市場上買到的多反應(yīng)性結(jié)構(gòu)單元，可以用作雜環(huán)定向合成（HOS）的起始原料，從而導(dǎo)致各種稠密的含氮循環(huán)。 4-氯-2-氟-5-硝基苯甲酸通過聚合物負(fù)載的鄰苯二胺制備具有5-7元環(huán)的取代的含氮雜環(huán)的能力。將該化合物固定在Rink樹脂上，接著進(jìn)行進(jìn)一步的氯取代，還原硝基并適當(dāng)環(huán)化，得到苯并咪唑，苯并三唑，喹喔啉酮，苯并二氮雜二酮和琥珀酰亞胺。所開發(fā)的方法適用于各種文庫的合成，包括上述類型的雜環(huán)，這些雜環(huán)在當(dāng)前的藥物發(fā)現(xiàn)中具有重要意義。手性氨基膦哌啶應(yīng)用</p><p> 上海畢得醫(yī)藥科技有限公司成立于2007年，總部位于上海市楊浦區(qū)理工大學(xué)國家大學(xué)科技園，是一家以醫(yī)藥中間體相關(guān)產(chǎn)品的研發(fā)、生產(chǎn)、銷售及合成定制為主的****。自公司成立以來，始終堅持信譽至上，質(zhì)量過硬的企業(yè)信條，產(chǎn)品被應(yīng)用于生命科學(xué)、有機化學(xué)、材料科學(xué)、分析化學(xué)與其他學(xué)科的研發(fā)及生產(chǎn)領(lǐng)域，銷售范圍遍及全球。目前，公司與諸多國內(nèi)**醫(yī)藥研發(fā)單位建立了合作伙伴關(guān)系。 </p> <p> 公司位于上海理工大學(xué)科技園的行政辦公中心面積達(dá)1,700平米，在藥谷設(shè)立的研發(fā)中心面積1,800平米，包括化學(xué)合成實驗室和公斤級實驗室，并配有現(xiàn)代化倉儲物流中心。公司優(yōu)勢產(chǎn)品包括特色雜環(huán)化合物、含氟化合物、手性化合物、氨基酸及其衍生物、硼酸及其衍生物等，已有多項科研項目獲得國家發(fā)明專利。 </p> <p> 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