Title:
NEW SYNTHESIS OF TAPENTADOL-HCl INTERMEDIATES
Document Type and Number:
WIPO Patent Application WO/2016/202808
Kind Code:
A3
Abstract:
The present invention relates to a process for the synthesis of tapentadol intermediates comprising the following route of synthesis: (I) → (II) → (III) → (IV) → (V).
Inventors:
AESCHBACHER ROMAN GERBER (CH)
FRECH CHRISTIAN MANFRED (CH)
MAIER THOMAS (DE)
PORSTMANN FRANK (CH)
CHEN JIAN-GE (US)
SHI XIONGWEI (US)
FRECH CHRISTIAN MANFRED (CH)
MAIER THOMAS (DE)
PORSTMANN FRANK (CH)
CHEN JIAN-GE (US)
SHI XIONGWEI (US)
Application Number:
PCT/EP2016/063648
Publication Date:
January 26, 2017
Filing Date:
June 14, 2016
Export Citation:
Assignee:
AZAD PHARMACEUTICAL INGREDIENTS AG (CH)
International Classes:
C07C271/16; C07C59/48; C07C59/64; C07C213/02; C07C217/48
Foreign References:
| EP2671878A1 | 2013-12-11 | |||
| EP0271287A2 | 1988-06-15 |
Attorney, Agent or Firm:
MICHALSKI HÜTTERMANN & PARTNER PATENTANWÄLTE MBB (DE)
Download PDF:
Previous Patent: PROCESS FOR THE PREPARATION OF SUBSTITUTED PHENYL KETONES
Next Patent: FLEXIBLE CABLE DELIVERY SYSTEM FOR TWO SIDED CABLE LAYING
Next Patent: FLEXIBLE CABLE DELIVERY SYSTEM FOR TWO SIDED CABLE LAYING