The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login
|
Sign Up
|
Oriprobe Inc.
|
Feed
Home
Journals
Order
TOC Alerts
Subscription
Products & Services
Pricing
FAQ
About
Journal Articles
Laws/Policies/Regulations
Companies/Products
Title, abstract, keywords:
Combined Search
Advanced Search
Pay per View through On Demand Search
Package:
ALL
Astro-Earth Science
Agriculture
Physics
Mathematics
Arts & Humanities
Medline Collection
Health/Medicine/Biology
Chemistry/Chemical Engineering
English Journals
Traditional Chinese Medicine
NPC CPPCC Journals
Author:
Journal / Book Title:
Year:
Volume:
Issue:
Improved synthesis of Etimiein sulfate
Author(s):
XUE Chun-xia
,
ZHAO Wen-jie
,
Lu Yu-feng
Pages:
106
-
108
Year:
2005
Issue:
2
Journal:
QILU PHARMACEUTICAL AFFAIRS
Keyword:
硫酸依替米星
;
1-N-乙基庆大霉素C1a
;
过渡金属络合物
;
硅烷化
;
N-乙基化
;
Abstract:
目的改进硫酸依替米星的合成工艺.方法以庆大霉素C1a为起始原料,采用过渡金属络合物催化方法保护部分氨基,并应用了发明专利未曾报道的硅烷化羟基保护新步骤,用缩合-还原型N-乙基化反应得到了1-N-乙基庆大霉素C1a,与硫酸成盐合成了符合国家药品质量标准的硫酸依替米星原料药成品.结果收率为37.3%,较发明专利有明显的提高,本工艺中试也取得了较好的结果.结论该改进工艺具有一定的产业化价值.
Citations
No citation found
Related Articles
No related articles found