已为您找到该学者6条结果 成果回收站
陈卫民, Wei-Min Chen a, Henry N. C. Wong a, * Daniel T. W. Chu b and Xiaodong Lin b
W.-M. Chen et al./Tetrahedron 59(2003)7033-7045,-0001,():
-1年11月30日
Abstract-Synthetic studies on methylation of erythromycin derivatives were conducted. Methylation of 6 resulted in the formation of the C-3/quatemary ammonium salts with a rate faster than 6-O-methylation. In dipolar aprotic solvent and under strong base conditions. 6-0-methylation, C-3r quaternary ammomum salts formation and 2-C-methylation proceeded simultaneously to yield a mixture of three different products 7, 8 and 9. The quaternary ammonium salts were converted back to the corresponding tertiary amines 2, 10 and starting material 6 by employing sodium 4-pyridinethiolate as a N-demethylation reagent. The 6-O-methylation was eventually achieved in a good yield when a carbobenzyloxy (Cbz) group was utilized to protect the C-3/-dimethylamino group of 4. In this report, we will discuss the details of different reaction courses in the methylation of (9S)-12. 21-anhydro-9-dihydroerythromycin A derivatives.
-
91浏览
-
0点赞
-
0收藏
-
0分享
-
317下载
-
0
-
引用
陈卫民, 陈卫民*, 曾陇梅, 万山河, 徐继红
应用化学,1999,16(6):100~101,-0001,():
-1年11月30日
甲氧基苯氧乙胺, 合成
-
35浏览
-
0点赞
-
0收藏
-
0分享
-
201下载
-
0
-
引用
陈卫民, 卫民①, 刘叔文
解放军药学学报,2000,16(5)262~265,-0001,():
-1年11月30日
将可释放一氧化氨(NO)的功能基连接到载体分子合成可释放 NO的化台物 Diazenium-olates,该化台物进人体内后释放出NO,可用作阐明 NO生理功能的工具,以及研制新的临床药物。奉文介绍了umdlolates的结构、合成、基础研究、临床前景,并展望了未来的发展前景。
Diazemiumdiolates, 一氧化氮, NO供体药
-
41浏览
-
0点赞
-
0收藏
-
0分享
-
109下载
-
0
-
引用
【期刊论文】1-D-Ribofuranosyl-2-ethyl-3-hydroxy-4
陈卫民, Wei-Min Chen and Long-Mei Zeng
,-0001,():
-1年11月30日
-
32浏览
-
0点赞
-
0收藏
-
0分享
-
60下载
-
0
-
引用
【期刊论文】4-羟基咔唑的合成改进IMPROVED SYNTHESIS OF 4-HYDROXYCARBAZOLE
陈卫民, 徐继红
中国医药工业杂志,1998,29(4):185~185,-0001,():
-1年11月30日
-
50浏览
-
0点赞
-
0收藏
-
0分享
-
142下载
-
0
-
引用