发明名称 |
PROCESS FOR PREPARING 4-AMINOMETHYL-3-ALKOXYIMINOPYRROLIDINE METHANE SULFONATE THROUGH REDUCED PREPARATION PROCESS |
摘要 |
<p>PURPOSE: A process for preparing 4-aminomethyl-3-alkoxyiminopyrrolidine methane sulfonate is provided through reduced preparation process, thereby cheaply preparing the compound without using expensive raw materials and organic solvents. CONSTITUTION: The process for preparing 4-aminomethyl-3-alkoxyiminopyrrolidine methane sulfonate represented by the formula(I) comprises the steps of: (a) reacting a compound of the formula(II) with alkoxyamine or haloalkoxyamine or salts thereof in the presence of base to prepare a compound of the formula(III); (b) reacting the compound of the formula(III) with methane sulfonate to prepare a compound of the formula(IV); and (c) adding methane sulfonate and hydrogenated catalyst into the compound of the formula(IV) to hydrogenate the compound of the formula(IV), wherein R1 is C1-C4-alkyl, or halogeno-C1-C4-alkyl; P is a protecting group such as t-butoxycarbonyl(BOC); and the base is triethylamine, tri(n-butyl)amine, diisopropylethylamine, pyridine, 4-dimethylaminopyridine, 4-(4-methyl-piperidin-1-yl)-pyridine or sodium acetate.</p> |
申请公布号 |
KR20040079324(A) |
申请公布日期 |
2004.09.14 |
申请号 |
KR20040015158 |
申请日期 |
2004.03.05 |
申请人 |
LG LIFE SCIENCES LTD. |
发明人 |
HWANG, GYO HYEON;JANG, JAE HYEOK;KIM, YEONG DAE;KIM, YEONG GEUN;LEE, GYEONG HUI;LEE, JAE SEONG;NAM, HYEON;NOH, HYEON GUK;SHIN, HYEON IK |
分类号 |
C07D207/22;(IPC1-7):C07D207/22 |
主分类号 |
C07D207/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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