24小时热门版块排行榜    

北京石油化工学院2026年研究生招生接收调剂公告
查看: 404  |  回复: 6

何超

金虫 (正式写手)


[交流] 文献理解

为了作业,在精读一篇Bioorganic&Medicinal  Chemistry  Letters上的英文文献,对其中一点关于实验结果的内容理解有问题,觉得文字叙述内容与表格所给的结果不一致,盼各位指点......
内容如下:
Modification of the amino substituent gave the isomeric tetramethyl derivative 17 and the 4,7-dihydroindanyl indacaterol derivative 29 which had comparable decreases in affinity and selectivity when compared to 1. The 5-n-butylindanyl analogue 16, as a diasteroisomeric mixture epimeric at the 2-indanyl position, exhibited a similar binding profile to 1, suggesting the potential for a similar overall profile. However, the additional stereochemical complexity in 16 reduced the attractiveness of this analogue for further follow up studies. Introduction of the a-methyl group into the amino substituent gave the analogue 25 which led to the anticipated increase in b2adrenoceptor affinity, of greater than 10-fold relative to 1.However, this increase in affinity was also accompanied by an even greater relative increase in b1-adrenoceptor affinity and an overall reduction in binding selectivity.
表如下:(附件里,弄不上来)
希望各位不吝各抒己见,指导指导我这个马上要交作业的人......

HW5~KR45$B1]T(5S6J@{`X4.jpg
回复此楼

» 猜你喜欢

» 抢金币啦!回帖就可以得到:

查看全部散金贴

已阅   关注TA 给TA发消息 送TA红花 TA的回帖

何超

金虫 (正式写手)


我的理解,化合物17、29,文字叙述说对b2肾上腺素受体的亲和力和选择都下降,而表的内容显示应该是都升高的
还有关于化合物25的叙述说对b2肾上腺素受体的亲和力增加,表里内容是降低的
你们可能会说,是我对那个K的意义理解错了,我觉得应该是结合的速率与分解的速率之比,而且根据这一理解能与前面关于其他化合物的叙述相符
不知道是怎么回事,盼指教......
2楼2012-10-23 19:43:46
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

何超

金虫 (正式写手)


是因为看到一大段的英文而没人回么?
请就看这3句:
化合物17、29的  Modification of the amino substituent gave the isomeric tetramethyl derivative 17 and the 4,7-dihydroindanyl indacaterol derivative 29 which had comparable decreases in affinity and selectivity when compared to 1.
化合物16的    Introduction of the a-methyl group into the amino substituent gave the analogue 25 which led to the anticipated increase in b2adrenoceptor affinity, of greater than 10-fold relative to 1.However, this increase in affinity was also accompanied by an even greater relative increase in b1-adrenoceptor affinity and an overall reduction in binding selectivity.
谢谢!!!
3楼2012-10-24 08:44:25
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

何超

金虫 (正式写手)


引用回帖:
4楼: Originally posted by 郑克宁 at 2012-10-24 09:01:23

感谢支持!!!
不吝赐教!!!
6楼2012-10-24 16:26:33
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

何超

金虫 (正式写手)


引用回帖:
5楼: Originally posted by jiangsishui at 2012-10-24 09:07:50

感谢回复,不吝赐教!!!
7楼2012-10-24 16:27:10
已阅   关注TA 给TA发消息 送TA红花 TA的回帖
简单回复
郑克宁4楼
2012-10-24 09:01  
2012-10-24 09:07  
相关版块跳转 我要订阅楼主 何超 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 085410人工智能 初试316分 求调剂 +7 残星拂曙 2026-03-31 7/350 2026-04-06 10:09 by 蓝云思雨
[考研] 086000生物与医药298调剂求助 +9 元元青青 2026-03-31 12/600 2026-04-05 21:03 by 学员8dgXkO
[考研] 材料调剂 +6 一样YWY 2026-04-05 6/300 2026-04-05 20:30 by 南航~万老师
[考研] 0854电子信息319求调剂(接受跨专业调剂) +3 星星不眨眼喽 2026-04-05 3/150 2026-04-05 20:20 by 啵啵啵0119
[考研] 调剂 +3 好好读书。 2026-04-02 3/150 2026-04-05 13:02 by arrow8852
[考研] 353求调剂 +10 MayUxw1 2026-04-03 10/500 2026-04-05 09:23 by 无际的草原
[考研] 292分,材料与化工,申请调剂 +22 程晴之 2026-04-01 26/1300 2026-04-04 22:03 by hemengdong
[考研] 材料调剂 +12 一样YWY 2026-04-02 13/650 2026-04-04 20:49 by 蓝云思雨
[考研] 26调剂 086003 +6 失活的细胞 2026-04-04 6/300 2026-04-04 09:50 by zhangdingwa
[考研] 265求调剂 +20 梁梁校校 2026-04-01 21/1050 2026-04-04 00:38 by userper
[考研] 化工求调剂 +11 荔香芝士椰奶 2026-04-03 11/550 2026-04-03 22:06 by 啵啵啵0119
[考研] 288求调剂 一志愿哈工大 材料与化工 +39 洛神哥哥 2026-03-31 41/2050 2026-04-03 21:51 by qlm5820
[考研] 294求调剂 +6 Grey_Ey 2026-04-03 6/300 2026-04-03 20:46 by 欣喜777
[考研] 326分求调剂 +3 于是乎呢 2026-04-01 5/250 2026-04-03 14:23 by 于是乎呢
[考研] 372分材料与化工(085600)一志愿湖南大学求调剂 +5 蓝笺片 2026-04-02 6/300 2026-04-02 21:37 by dongzh2009
[考研] 一志愿武汉理工0856,初试334 +3 26考研材料 2026-04-02 3/150 2026-04-02 21:22 by dongzh2009
[考研] 270调剂 +7 maxjxbsk 2026-04-02 7/350 2026-04-02 09:50 by yulian1987
[考研] 一志愿安徽大学计算机科学与技术学硕,331分求调剂 +5 蒋昌鹏qtj 2026-04-01 5/250 2026-04-02 08:10 by fxue1114
[考研] 08工科,295,接受跨专业调剂 +6 lmnlzy 2026-03-31 6/300 2026-04-01 11:02 by 逆水乘风
[考研] 福建理工大学材料学院先进合金团队招收考研调剂学生 +3 大华金商都 2026-03-30 4/200 2026-03-31 01:04 by 方英俊602
信息提示
请填处理意见