| 5 | 1/1 | 返回列表 |
| 查看: 898 | 回復(fù): 4 | |||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ,點(diǎn)擊這里進(jìn)行查看 | |||
| 當(dāng)前只顯示滿足指定條件的回帖,點(diǎn)擊這里查看本話題的所有回帖 | |||
[交流]
求助2句英文翻譯
|
|||
|
第一句:In order to determination of lamivudine and its related substances by HPLC and study the structure-activity relationships of oxathiolanyl nucleosides as potential anti-virus agents, the synthesis geometrical isomer cis-(±) 1 and trans-(±) 2 of lamivudine was needed. 第二句:The mixture was separated by silica gel column chromatography using EtOAc/MeOH (50:1) as eluant to achieved 8 in 58% yield as the slow moving component7 and 9 in 25% yield as the fast moving product8 (Lit.5 8 and 9 combined yield 55.3%). Deprotection of 8 and 9 using NH4OH in EtOH at room temperation produced the desired cis-(±) 19 and trans-(±) 210 in 84.7% and 92.5% yield, respectively. 上下文參考可以看我要翻譯的整篇的文獻(xiàn)https://www.rayfile.com/zh-cn/fi ... -a0af-0015c55db73d/ |
» 搶金幣啦!回帖就可以得到:
+3/1733
+1/167
+5/80
+1/78
+1/75
+1/49
+2/46
+1/33
+1/31
+2/30
+1/16
+1/13
+1/12
+1/9
+1/6
+1/5
+1/4
+1/4
+1/1
+1/1
榮譽(yù)版主 (職業(yè)作家)
|
In order to(個(gè)人覺(jué)得這個(gè)句子由錯(cuò)誤,應(yīng)該用FOR) determination of lamivudine and its related substances by HPLC and study the structure-activity relationships of oxathiolanyl nucleosides as potential anti-virus agents, the synthesis geometrical isomer cis-(±) 1 and trans-(±) 2 of lamivudine was needed. 為了通過(guò)HPLC檢測(cè)拉米夫定及與此相關(guān)的物質(zhì)以及研究氧硫雜環(huán)戊基核苷作為抗病毒藥劑的構(gòu)效關(guān)系(SAR),我們需要合成拉米夫定的正式同分異構(gòu)體。 |
榮譽(yù)版主 (知名作家)
榮譽(yù)版主 (職業(yè)作家)
| 混合物在硅膠柱層析(洗脫劑:EtOAc/MeOH (50:1))洗脫下得到化合物8(產(chǎn)率58%),而后洗脫下來(lái)的7和9產(chǎn)率為25%,先洗脫下來(lái)的產(chǎn)物為8(8和9總產(chǎn)率為55.3%)。8和9在NH4OH的EtOH溶液中室溫脫保得到所需的cis-(±) 19(產(chǎn)率為84.7%) 以及 trans-(±) 210(產(chǎn)率為92.5%) |
榮譽(yù)版主 (知名作家)
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 284求調(diào)劑 +10 | Zhao anqi 2026-03-22 | 10/500 |
|
|---|---|---|---|---|
|
[考研] 環(huán)境學(xué)碩288求調(diào)劑 +8 | 皮皮皮123456 2026-03-22 | 8/400 |
|
|
[考研] 一志愿華東理工大學(xué)081700,初試分?jǐn)?shù)271 +4 | kotoko_ik 2026-03-23 | 5/250 |
|
|
[考研] 291求調(diào)劑 +8 | hhhhxn.. 2026-03-23 | 8/400 |
|
|
[考研] 一志愿中國(guó)石油大學(xué)(華東) 本科齊魯工業(yè)大學(xué) +4 | 石能偉 2026-03-17 | 4/200 |
|
|
[論文投稿] 急發(fā)核心期刊論文 +3 | 賢達(dá)問(wèn)津 2026-03-23 | 5/250 |
|
|
[考研] 280分求調(diào)劑 一志愿085802 +4 | PUMPT 2026-03-22 | 7/350 |
|
|
[考研] 石河子大學(xué)(211、雙一流)碩博研究生長(zhǎng)期招生公告 +3 | 李子目 2026-03-22 | 3/150 |
|
|
[考研] 315分,誠(chéng)求調(diào)劑,材料與化工085600 +3 | 13756423260 2026-03-22 | 3/150 |
|
|
[考研] 尋找調(diào)劑 +4 | 倔強(qiáng)芒? 2026-03-21 | 4/200 |
|
|
[考研] 266求調(diào)劑 +3 | 哇呼哼呼哼 2026-03-20 | 3/150 |
|
|
[基金申請(qǐng)]
學(xué)校已經(jīng)提交到NSFC,還能修改嗎?
40+4
|
babangida 2026-03-19 | 9/450 |
|
|
[考研] 301求調(diào)劑 +10 | yy要上岸呀 2026-03-17 | 10/500 |
|
|
[考研] 初始318分求調(diào)劑(有工作經(jīng)驗(yàn)) +3 | 1911236844 2026-03-17 | 3/150 |
|
|
[考研] 308求調(diào)劑 +3 | 阿姐阿姐家啊 2026-03-18 | 3/150 |
|
|
[考研] 一志愿武漢理工材料工程專碩調(diào)劑 +9 | Doleres 2026-03-19 | 9/450 |
|
|
[考研] 求調(diào)劑一志愿南京航空航天大學(xué)289分 +3 | @taotao 2026-03-19 | 3/150 |
|
|
[考研] 求調(diào)劑 +3 | eation27 2026-03-20 | 3/150 |
|
|
[考研] 0703化學(xué)調(diào)劑 +5 | pupcoco 2026-03-17 | 8/400 |
|
|
[考研] 材料工程專碩調(diào)劑 +5 | 204818@lcx 2026-03-17 | 6/300 |
|