CN103030587A - 3-甲胺基哌啶的合成工艺 - Google Patents

3-甲胺基哌啶的合成工艺 Download PDF

Info

Publication number
CN103030587A
CN103030587A CN 201110299570 CN201110299570A CN103030587A CN 103030587 A CN103030587 A CN 103030587A CN 201110299570 CN201110299570 CN 201110299570 CN 201110299570 A CN201110299570 A CN 201110299570A CN 103030587 A CN103030587 A CN 103030587A
Authority
CN
China
Prior art keywords
methylamino
reaction equation
synthetic reaction
pyridine
synthesis process
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201110299570
Other languages
English (en)
Inventor
殷越
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 201110299570 priority Critical patent/CN103030587A/zh
Publication of CN103030587A publication Critical patent/CN103030587A/zh
Pending legal-status Critical Current

Links

Abstract

3-甲胺基哌啶的合成工艺涉及一种抗菌药中间体的合成工艺,更具体地说,是涉及3-甲胺基哌啶的合成工艺。本发明提供了一种步骤少、收率高的3-甲胺基哌啶的合成工艺。本发明采用如下技术方案,工艺步骤为:3-甲酰胺基吡啶的合成;3-甲胺基吡啶的合成;3-甲胺基哌啶的合成。

Description

3-甲胺基哌啶的合成工艺
技术领域:
本发明涉及一种抗菌药中间体的合成工艺,更具体地说,是涉及3-甲胺基哌啶的合成工艺。
背景技术:
3-甲胺基哌啶是合成氟喹诺酮类抗菌药巴洛沙星的关键原料之一。常用的合成工艺为,以γ-丁内酯为原料,依次经卞胺化、水解、酯化、与乙酸乙酯缩合、环合、酯水解并脱羧、还原胺化和氢解脱苄基等反应制得3-甲胺基哌啶,该路线步骤多,总收率低。
发明内容:
本发明就是针对上述问题,提供了一种步骤少、收率高的3-甲胺基哌啶的合成工艺。
为了实现本发明的上述目的,本发明采用如下技术方案,工艺步骤为:
1.3-甲酰胺基吡啶的合成
反应方程式为:
Figure BSA00000586383200011
2.3-甲胺基吡啶的合成
反应方程式为:
Figure BSA00000586383200012
选用硼氢化钠为还原剂进行还原,反应结束后,先用盐酸调节pH值为1,然后用氢氧化钠溶液调节溶液的pH值为8~9;乙酸乙酯提取后浓缩得到粗品,无需精制,直接进行下一步;
3.3-甲胺基哌啶的合成
反应方程式为:
Figure BSA00000586383200021
本发明的有益效果:
本发明反应条件温和,操作简便,适合工业化生产;本发明的收率为49.6%。
具体实施方式:
本发明的工艺步骤为:
1.3-甲酰胺基吡啶的合成
反应方程式为:
Figure BSA00000586383200022
2.3-甲胺基吡啶的合成
反应方程式为:
Figure BSA00000586383200023
选用硼氢化钠为还原剂进行还原,反应结束后,先用盐酸调节pH值为1,然后用氢氧化钠溶液调节溶液的pH值为8~9;乙酸乙酯提取后浓缩得到粗品,无需精制,直接进行下一步;
3.3-甲胺基哌啶的合成
反应方程式为:
Figure BSA00000586383200031
本发明的中间体和最终产物的结构得到了核磁谱图和质谱图的确认。

Claims (1)

1.3-甲胺基哌啶的合成工艺,其特征在于,本发明采用如下技术方案,工艺步骤为:
(1)3-甲酰胺基吡啶的合成
反应方程式为:
Figure FSA00000586383100011
(2)3-甲胺基吡啶的合成
反应方程式为:
Figure FSA00000586383100012
选用硼氢化钠为还原剂进行还原,反应结束后,先用盐酸调节pH值为1,然后用氢氧化钠溶液调节溶液的pH值为8~9;乙酸乙酯提取后浓缩得到粗品,无需精制,直接进行下一步;
(3)3-甲胺基哌啶的合成
反应方程式为:
Figure FSA00000586383100013
CN 201110299570 2011-10-08 2011-10-08 3-甲胺基哌啶的合成工艺 Pending CN103030587A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110299570 CN103030587A (zh) 2011-10-08 2011-10-08 3-甲胺基哌啶的合成工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110299570 CN103030587A (zh) 2011-10-08 2011-10-08 3-甲胺基哌啶的合成工艺

Publications (1)

Publication Number Publication Date
CN103030587A true CN103030587A (zh) 2013-04-10

Family

ID=48018036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110299570 Pending CN103030587A (zh) 2011-10-08 2011-10-08 3-甲胺基哌啶的合成工艺

Country Status (1)

Country Link
CN (1) CN103030587A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113214146A (zh) * 2021-05-26 2021-08-06 青岛化赫医药科技有限公司 催化氨基吡啶n-烷基化的方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113214146A (zh) * 2021-05-26 2021-08-06 青岛化赫医药科技有限公司 催化氨基吡啶n-烷基化的方法
CN113214146B (zh) * 2021-05-26 2023-03-07 上海巽田科技股份有限公司 催化氨基吡啶n-烷基化的方法

Similar Documents

Publication Publication Date Title
NZ734451A (en) Preparation, uses and solid forms of obeticholic acid
NZ596872A (en) Improved method for synthesizing pirfenidone
IL250454B1 (en) History of high purity quinoline and a method for their preparation
WO2008089984A3 (en) Process for the preparation of ezetimibe and derivatives thereof
WO2012138147A3 (en) 1-(3-cyano-1-isopropyl-indol-5-yl)pyrazole-4-carboxylic acid crystalline form and the producing method thereof
EP3241826A3 (en) Process for producing pyrrole compound
PH12015501226A1 (en) Crystalline 6,7-unsaturated-7-carbamoyl morphinane derivative, and method for producing the same
JPWO2012070649A1 (ja) 溶解性の高いピロロキノリンキノン塩及びその製造方法
WO2011004980A3 (ko) 트리사이클릭 유도체의 제조방법
WO2011114210A3 (en) Processes for the preparation of linezolid
CN104610359B (zh) 一种制备磷酸特地唑胺的关键中间体及其制备方法
WO2010089778A3 (en) Process for the synthesis of cleistanthin
WO2012030106A3 (en) Production method of intermediate compound for synthesizing medicament
TN2012000585A1 (en) Process for preparing crystalline 3,6,9-triaza-3,6,9-tris(carboxymethyl)-4-(4-ethoxybenzyl)undecanedioic acid and use for production of primovist®
WO2011102640A3 (en) Method for preparing sitagliptin and amine salt intermediates used therein
CN102659672A (zh) 高纯度苯磺酸左旋氨氯地平的制备方法
CN103030587A (zh) 3-甲胺基哌啶的合成工艺
CN103787975A (zh) 石杉碱甲d-二苯甲酰酒石酸盐及其制备方法和应用
MY165659A (en) Novel method of preparing benzoimidazole derivatives
MX2018010128A (es) Toxina nueva y metodo de preparacion de un intermediario de la misma.
CN102690299A (zh) 一种串联反应制备三氯蔗糖-6-乙酸酯的方法
WO2012025941A3 (en) Processes for the preparation of fesoterodine
WO2010122575A3 (en) Process for the preparation of pure paliperidone
CN103113408A (zh) 一种制备磷霉素左磷右胺盐的新方法
WO2010079497A3 (en) Novel polymorph of atazanavir sulfate

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130410