NOVEL CANNABINOID RECEPTOR LIGANDS, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM, AND PROCESSES FOR THEIR PREPARATION
申请人:Muthuppalaniappan Meyyappan
公开号:US20080200501A1
公开(公告)日:2008-08-21
The present invention relates to novel cannabinoid receptor modulators, in particular cannabinoid 1 (CB1) or cannabinoid 2 (CB2) receptor modulators, and uses thereof for treating diseases, conditions and/or disorders modulated by a cannabinoid receptor (such as pain, neurodegenative disorders, eating disorders, weight loss or control, and obesity).
Continuous flow process for the synthesis of phenylhydrazine salts and substituted phenylhydrazine salts
申请人:SHANGHAI HYBRID—CHEM TECHNOLOGIES
公开号:US11040938B2
公开(公告)日:2021-06-22
The present invention provided a continuous flow process for the synthesis of phenylhydrazine salts and substituted phenylhydrazine salts. Diazotization, reduction, acidic hydrolysis and salifying with acids are innovatively integrated together. Using acidic liquids of aniline or substituted aniline, diazotization reagents, reductants and acids as raw materials, phenylhydrazine derivative salts is obtained through the synthesis process, which is a three-step continuous tandem reaction including diazotization, reduction, acidic hydrolysis and salifying. The described synthesis process is a kind of integrated solutions, which is carried out in an integrated reactor. The feed inlets of the integrated reactor are continuously filled with raw materials. In the integrated reactor, diazotization, reduction, acidic hydrolysis and salifying are carried out continuously and orderly, and phenylhydrazine salts or substituted phenylhydrazine salts is obtained in the outlet of the integrated reactor without interruption. The total reaction time is no more than 20 min.