Methods for analysis and resolution of preparations of dianhydrogalactitol and derivatives or analogs thereof

A technology of anhydrogalactitol and analysis method, which is applied in the analysis field of preparations and can solve the problems of high incidence

Active Publication Date: 2018-10-23
DEMA PHARM (BC) CO LTD
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such patients may experience a higher incidence of undesirable side effects due to their sensitivity to pollutants

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Methods for analysis and resolution of preparations of dianhydrogalactitol and derivatives or analogs thereof
  • Methods for analysis and resolution of preparations of dianhydrogalactitol and derivatives or analogs thereof
  • Methods for analysis and resolution of preparations of dianhydrogalactitol and derivatives or analogs thereof

Examples

Experimental program
Comparison scheme
Effect test

example

[0061] Reverse phase HPLC analysis of dianhydrogalactitol preparation using acetonitrile and water gradient

[0062] In general, this test procedure is used to determine one or more correlations in DAG drugs and drug formulations by high performance liquid chromatography (HPLC) (HPLC-ELSD) with ELSD detection substance. A reverse phase chromatography column (Waters Amide, 3.5 μm, 4.6×250 mm) with 100% acetonitrile (ACN) as mobile phase A and 100% water as mobile phase B was used. The flow rate is 0.8 mg / mL. The DAG peak was detected with a retention time of about 5.20 minutes. DAG samples were prepared at a target concentration of 8 mg / mL.

[0063] Reagents and reference standards

[0064] Reagents and reference standards include: (1) HPLC grade pure water (H 2 O) or equivalent; (2) HPLC grade acetonitrile (ACN) or equivalent; and (3) galactitol reference standard.

[0065] Instruments and devices

[0066] Instruments and devices include: (1) Shimadzu LC20A HPLC system or equiva...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An improved analytical method for analysis of dianhydrogalactitol preparations provides a method for determining the purity of dianhydrogalactitol and detecting impurities in preparations of dianhydrogalactitol, as well as identifying any such impurities. The method employs high performance liquid chromatography (HPLC), in particular, HPLC employing a reverse phase amide column with ELSD detection; the HPLC can be followed by tandem mass spectroscopy. The method can further comprise the step of performing preparative HPLC collection of at least one specific substance peak present in a preparation of dianhydrogalactitol.

Description

[0001] Cross references to related applications [0002] This application claims to be submitted by Q.Xu on November 25, 2015, entitled "Methods for Analysis and Resolution of Preparations of Dianhydrogalactitol and Derivatives or Analogs Thereof)" US Provisional Patent No. 62 / 260,019, the content of which is incorporated herein by reference in its entirety. Technical field [0003] The present invention relates to an improved analysis method for preparations of dianhydrogalactitol and its derivatives or analogs, and particularly relates to high performance liquid chromatography (HPLC). Background technique [0004] Dianhydrogalactitol (1,2:5,6 Dianhydrogalactitol or DAG) is one of a variety of hexitol or hexitol derivatives, with significant pharmacological activity, including chemotherapeutic activity. In particular, dianhydrogalactitol has been proposed for chemotherapy, as in US Patent No. 7,157,079 to Nielsen et al., which is incorporated herein by reference. [0005] Dianhydro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C07D303/14C07D301/02G01N30/22
CPCC07D303/14B01D15/305G01N30/34G01N30/30G01N30/88G01N2030/324G01N2030/8872G01N30/22G01N30/7233G01N30/74G01N2030/027
Inventor 徐强
Owner DEMA PHARM (BC) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products