Manufacturing process for methyl phenidate and intermediates thereof
申请人:Kumar Ashok
公开号:US20050277667A1
公开(公告)日:2005-12-15
The present invention discloses selective and complete reduction of pyridine ring in a biaryl system comprising ∝-substituted or nonsubstituted benzene ring and relates more specifically, not exclusively, for the manufacture of methylphenidate, which is used for treatment of Attention Deficit Hyperactive Disorder (ADHD) and also acts as central nervous system stimulant, by using palladium/C in a solvent such as C1-C4 alcohols in presence of molar quantities of organic and/or inorganic acids.
Synthesis of a Series of Potent and Orally Bioavailable Thrombin Inhibitors That Utilize 3,3-Disubstituted Propionic Acid Derivatives in the P<sub>3</sub> Position
作者:Thomas J. Tucker、William C. Lumma、S. Dale Lewis、Stephen J. Gardell、Bobby J. Lucas、Jack T. Sisko、Joseph J. Lynch、Elizabeth A. Lyle、Elizabeth P. Baskin、Richard F. Woltmann、Sandra D. Appleby、I-Wu Chen、Kimberley B. Dancheck、Adel M. Naylor-Olsen、Julie A. Krueger、Carolyn M. Cooper、Joseph P. Vacca
DOI:10.1021/jm970397q
日期:1997.10.1
As part of an effort to prepare efficacious and orally bioavailable analogs of the previously reported thrombininhibitors 1a, b, we have synthesized a series of compounds that utilize 3,3-disubstituted propionic acid derivatives as P3 ligands. By removing the N-terminal aminogroup, the general oral bioavailability of this class of compounds was enhanced without excessively increasing the lipophilicity
A PROCESS FOR THE PREPARATION OF METHYLPHENIDATE HYDROCHLORIDE AND ITS INTERMEDIATES THEREOF
申请人:ZCL CHEMICALS LTD.
公开号:US20150051400A1
公开(公告)日:2015-02-19
The present invention relates to an industrially feasible and economically viable process for the preparation of methylphenidate hydrochloride of formula I and its intermediates thereof.
本发明涉及一种工业上可行且经济可行的制备式I甲基苯丙胺盐酸盐及其中间体的过程。
An improved manufacturing process for methylphenidate and intermediates thereof
申请人:IPCA Laboratories Limited
公开号:EP1607388B1
公开(公告)日:2008-02-20
Cyclic Derivatives of α,α-Disubstituted Phenylacetonitriles<sup>1</sup>