 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 3 | 1/1 | 返回列表 |
| 查看: 506 | 回復(fù): 2 | |||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | |||
[求助]
a為α，b為β生物名詞實(shí)在看不懂求幫忙
|
|||
|
Based on these facts,Yan et al. [31] reported the microbial transformation of 3-hydroxy-5,6-cyclopropanocholestanes-an alter route to 6-methylsteroids. Incubation of 3b-hydroxy-5, 6 a -cyclopropano-5 a -cholestane (6)with Mycobacterium sp. (NRRL B-3805) gave three metabolites, 5,6 a -cyclopropano-5 a -androsta-3, 17-dione (7), 3b-hydroxy-5,6 a -cyclopropano-5 a -androsta-17-one (8) and androsta-4-ene-3,17-dione (5). Fermentation of 3b-hydroxy-5, 6b-cyclopropano-5b- cholestane (9) with Mycobacterium sp. afforded the metabolite 5,5, 6b-cyclopropano-5b-androsta-3, 17-dione (10) and 3 a -hydroxy-5, 6b-cyclopropano-5b-androsta-17-one (11). Similarly, incubationof 3b-hydroxy-5, 6 a -cyclopropano-5 a -cholest-7-ene (12) with Mycobacterium sp. yielded a mixture of side chain cleaved 17-keto steroids as the major products, viz. the cyclopropyl eliminated product 5, 5, 6 a -cyclopropano-5 a -androst-7-ene-3, 17-dione (13), 3b-hydroxy-5, 6 a -cyclopropano-5 a -androst-4-ene-17-one (14), 5, 6 a -cyclopropano-5 a -androst-8(14)-ene-3, 7, 17-trione (15), 5, 6 a -cyclopropano-5 a -androst-8-ene-3, 7, 17-trione (16) and 6 a , 7 a -cyclopropanoandrost-4-ene-3, 17-dione (17) as described in Scheme 2. a為α，b為β |
回復(fù)此樓» 猜你喜歡
265求調(diào)劑
已經(jīng)有8人回復(fù)
-
0817 化學(xué)工程 299分求調(diào)劑 有科研經(jīng)歷 有二區(qū)文章
已經(jīng)有21人回復(fù)
-
295材料求調(diào)劑，一志愿武漢理工085601專碩
已經(jīng)有4人回復(fù)
-
0856調(diào)劑，是學(xué)校就去
已經(jīng)有9人回復(fù)
-
298-一志愿中國(guó)農(nóng)業(yè)大學(xué)-求調(diào)劑
已經(jīng)有9人回復(fù)
-
求調(diào)劑
已經(jīng)有4人回復(fù)
-
學(xué)校已經(jīng)提交到NSFC，還能修改嗎？
已經(jīng)有7人回復(fù)
-
材料學(xué)碩297已過(guò)四六級(jí)求調(diào)劑推薦
已經(jīng)有6人回復(fù)
-
295復(fù)試調(diào)劑
已經(jīng)有7人回復(fù)
-
本人考085602 化學(xué)工程 專碩
已經(jīng)有20人回復(fù)
ssssllllnnnn 
至尊木蟲 (知名作家)
Translator and Proofreader
- 翻譯EPI: 1690
- 應(yīng)助: 452 (碩士)
- 金幣: 31580.9
- 紅花: 100
- 帖子: 7681
- 在線: 19966.6小時(shí)
- 蟲號(hào): 3328089
- 注冊(cè): 2014-07-17
- 專業(yè): 腫瘤發(fā)生
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
bxzc123: 金幣+100, 翻譯EPI+1, ★★★很有幫助 2015-04-23 21:21:54
bxzc123: 金幣+100, 翻譯EPI+1, ★★★很有幫助 2015-04-23 21:21:54
|
Based on these facts,Yan et al. [31] reported the microbial transformation of 3-hydroxy-5,6-cyclo propano cholestane-an alter route to 6-methyl steroids. Incubation of 3β-hydroxy-5, 6 α-cyclo propano-5 α-cholestane (6)with Mycobacterium sp. (NRRL B-3805) gave three metabolites, 5,6 α-cyclo propano-5 α-androsta-3, 17-dione (7), 3β-hydroxy-5,6 α-cyclo propano-5 α-androsta-17-one (8) and androsta-4-ene-3,17-dione (5). Fermentation of 3β-hydroxy-5, 6β-cyclo propano-5β-cholestane (9) with Mycobacterium sp. afforded the metabolite 5,5, 6β-cyclo propano-5β-androsta-3, 17-dione (10) and 3 α-hydroxy-5, 6β-cyclo propano-5β-androsta-17-one (11). Similarly, incubation of 3β-hydroxy-5, 6 α-cyclo propano-5 α-cholest-7-ene (12) with Mycobacterium sp. yielded a mixture of side chain cleaved 17-keto steroids as the major products, viz. the cyclopropyl eliminated product 5, 5, 6 α-cyclo propano-5 α-androst-7-ene-3, 17-dione (13), 3β-hydroxy-5, 6α-cyclo propano-5α-androst-4-ene-17-one (14), 5, 6 α-cyclo propano-5 α-androst-8(14)-ene-3, 7, 17-trione (15), 5, 6 α-cyclo propano-5 α-androst-8-ene-3, 7, 17-trione (16) and 6α, 7α-cyclo propano androst-4-ene-3,17-dione (17) as described in Scheme 2. 基于這些事實(shí)，Yan等【[31】報(bào)道的3-羥基-5,6-環(huán)丙醇膽甾烷微生物轉(zhuǎn)化為6-甲基類固醇的不同途徑。將3β羥基5,6α-環(huán)丙醇-5α-膽甾（6）與結(jié)核分枝桿菌（NRRL B-3805）孵育，得到3個(gè)代謝產(chǎn)物：5,6-α-環(huán)丙醇-5α-雄甾3,17二酮（7），3β羥基-5,6-α-環(huán)丙醇-5α-雄17酮（8）和雄甾-4-烯-3,17-二酮（5）。3β羥基-5-，6β-環(huán)丙醇-5β-膽甾（9）與結(jié)核分枝桿菌發(fā)酵，得到代謝物5,5，6β-環(huán)丙醇-5β-雄甾3,17二酮（10）和3α羥基-5，6β-環(huán)丙醇-5β-雄甾-17-酮（11）。類似地，如方案2中所述，3β羥基5,6α-環(huán)丙醇-5α-膽甾-7-烯（12）與結(jié)核分枝桿菌孵育，得到的主要產(chǎn)物是側(cè)鏈17-酮類固醇側(cè)鏈裂解混合物，即環(huán)丙基消除產(chǎn)物5，5，6α-環(huán)丙醇-5α-雄甾-7-烯-3，17-二酮（13），3β羥基-5，6α-環(huán)丙醇-5α-雄-4-烯-17酮（14），5，6α-環(huán)丙醇-5α-雄甾-8（14）-烯-3,7，17-三酮（15），5，6α-環(huán)丙醇-5-α-雄甾-8-烯-3，7，17三酮（16）和6α，7α-環(huán)丙醇，雄-4-烯-3,17-二酮（17）。 |
2樓2015-04-22 21:25:07
3樓2015-04-23 21:22:41
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 bxzc123 的主題更新
| 3 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 304求調(diào)劑 +5 | 曼殊2266 2026-03-18 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 材料專碩英一數(shù)二306 +6 | z1z2z3879 2026-03-18 | 6/300 |
|
|
|
[考研] 一志愿蘇州大學(xué)材料求調(diào)劑，總分315（英一） +3 | sbdksD 2026-03-19 | 3/150 |
|
|
|
[考研] 生物學(xué)調(diào)劑招人�。�！ +3 | 山海天嵐 2026-03-17 | 4/200 |
|
|
|
[考研] 085600材料與化工調(diào)劑 324分 +10 | llllkkkhh 2026-03-18 | 12/600 |
|
|
|
[考研] 324分 085600材料化工求調(diào)劑 +3 | llllkkkhh 2026-03-18 | 3/150 |
|
|
|
[考研] 一志愿天大材料與化工（085600）總分338 +5 | 蔡大美女 2026-03-13 | 5/250 |
|
|
|
[考研] 295求調(diào)劑 +3 | 一志愿京區(qū)211 2026-03-18 | 5/250 |
|
|
|
[考研] 085600材料與化工 +5 | 安全上岸！ 2026-03-16 | 5/250 |
|
|
|
[考研] 0854可跨調(diào)劑，一作一項(xiàng)核心論文五項(xiàng)專利，省、國(guó)級(jí)證書40+數(shù)一英一287 +8 | 小李0854 2026-03-16 | 8/400 |
|
|
|
[考研]
 0854，計(jì)算機(jī)類招收調(diào)劑
+3
|
胡辣湯放糖 2026-03-15 | 6/300 |
|
|
|
[考研] 277調(diào)劑 +5 | 自由煎餅果子 2026-03-16 | 6/300 |
|
|
|
[考研] 268求調(diào)劑 +8 | 一定有學(xué)上- 2026-03-14 | 9/450 |
|
|
|
[考研] 材料專碩326求調(diào)劑 +6 | 墨煜姒莘 2026-03-15 | 7/350 |
|
|
|
[考研] 085601求調(diào)劑 +4 | Du.11 2026-03-16 | 4/200 |
|
|
|
[考博] 26申博 +4 | 八6八68 2026-03-16 | 4/200 |
|
|
|
[考研] 278求調(diào)劑 +3 | Yy7400 2026-03-13 | 3/150 |
|
|
|
[考研] 333求調(diào)劑 +3 | 文思客 2026-03-16 | 7/350 |
|
|
|
[考研] 本科南京大學(xué)一志愿川大藥學(xué)327 +3 | 麥田耕者 2026-03-14 | 3/150 |
|
|
|
[考研] 266求調(diào)劑 +4 | 學(xué)員97LZgn 2026-03-13 | 4/200 |
|