Process for the preparation of crystalline nano-particle dispersions
申请人:Skantze Urban Tommy
公开号:US20050202092A1
公开(公告)日:2005-09-15
A process for the preparation of a dispersion of crystalline nano-particles in an aqueous medium comprising combining (i) a first solution comprising a substantially water-insoluble substance in a water-miscible organic solvent with; (ii) an aqueous phase comprising water and optionally a stabiliser, to form a dispersion of amorphous particles; and (iii) sonicating the dispersion of amorphous particles for a sufficient period to form crystalline nano-particles of the substantially water-insoluble substance. The process provides nano-crystals with a mean hydrodynamic diameter of less than 1 micron, particularly less than 300 nm and is particularly useful for the preparation of nano-crystalline dispersions of pharmaceutical substances.
PROCESS FOR THE PREPARATION OF CRYSTALLINE NANO-PARTICLE DISPERSIONS
申请人:AstraZeneca AB
公开号:EP1524964B1
公开(公告)日:2010-12-01
US7780989B2
申请人:——
公开号:US7780989B2
公开(公告)日:2010-08-24
Novel<i>N</i>-Substituted ((1<i>H</i>-indol-3-yl)methylene)benzohydrazides and ((1<i>H</i>-indol-3-yl)methylene)-2-phenylhydrazines: Synthesis and Antiplatelet Aggregation Activity
antiplatelet hydrazone derivatives, some new indole‐based derivatives were designed and synthesized as potential antiplatelet agents. Synthesis of the derivatives was accomplished by substitution at the N – 1 position of indole‐3‐carboxaldehyde and reacting the resulting intermediates with either phenylhydrazine of benzoylhydrazide. The structure of the synthesized compounds was confirmed by different spectral