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US5766481A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for rapid purification, analysis and characterizations of collections of chemical compounds

Assignee: Arqule Inc
•
Filing: 1997-02-18
•
Granted: 1998-06-16
•
Expires: 2017-02-18
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Abstract

Abstract The present invention relates to a method for the processing of molecules by determining one or more selection parameters for a plurality of molecules; selecting a compatible grouping of molecules based on the selection parameters to form a set; forming a mixture of molecules of interest from the set; and resolving the mixture to fractionate the molecules of interest. The preferred method utilizes HPLC chromatography column to resolve and purify molecules which have different retention times.

Inventors

  • 👤 Robert Anthony Zambias
  • 👤 David Arthur Boulton
  • 👤 Jay Ping Chiang

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 02:44
CPC Classifications
B; B01; B01D; B01D15/00; B01D15/08; G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/06

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 97 words
A method for purifying molecules which comprises: determining one or more selection parameters for a plurality of molecules; selecting a compatible grouping of molecules based on said selection parameters to form a set; combining a mixture of compatible crude molecules of interest from the set, wherein the molecules are derived from parallel syntheses; and resolving the mixture based on at least one of the selection parameters to fractionate the mixture by simultaneous preparative chromatography processing, separating each molecule of interest from the other molecules of interest in the mixture, increasing the purity of each molecule of interest.
Claim 2
Independent Claim 97 words
A method for purifying molecules which comprises: determining one or more selection parameters for a plurality of molecules; selecting a compatible grouping of molecules based on said selection parameters to form a set; combining a mixture of compatible crude molecules of interest from the set, wherein the molecules are derived from parallel syntheses; and resolving the mixture based on at least one of the selection parameters to fractionate the mixture by simultaneous preparative chromatography processing, separating each molecule of interest from the other molecules of interest in the mixture, increasing the purity of each molecule of interest.
Claim 3
Dependent Claim 19 words
The method according to claim 1 which further comprises determining at least one selection parameter for a molecule experimentally.
Claim 4
Dependent Claim 14 words
The method according to claim 2 which further comprises determining all selection parameters experimentally.
Claim 5
Dependent Claim 25 words
The method according to claim 1 wherein the selection step comprises selecting a group of molecules that have differing binding capabilities to form the set.
Claim 6
Dependent Claim 55 words
The method according to claim 4 which further comprises screening the mixture after the resolving step for a desired interaction that depletes one or more of the molecules of interest from the mixture, and re-analyzing the resultant mixture of molecules which did not bind to determine the molecule of interest participating in the desired reaction.
Claim 7
Dependent Claim 32 words
The method according to claim 5, wherein the selection parameters for the molecules of interest are sufficiently distinct to enable the amounts of such molecules to be experimentally determined from the mixture.
Claim 8
Dependent Claim 27 words
The method according to claim 6 wherein the molecules of interest have different retention times and the analyzing and re-analyzing steps are conducted on a HPLC column.
Claim 9
Dependent Claim 50 words
The method according to claim 1, further comprising determining a chromatographic retention time for each molecule in the mixture as the selection parameter, and fractionating the mixture chromatographically, based on the retention time of each molecule in the mixture, to increase the purity of all of the molecules of interest.
Claim 10
Dependent Claim 24 words
The method according to claim 8, wherein the purity of the crude molecules is increased by chromatographically separating the mixture on an HPLC column.
Claim 11
Independent Claim 112 words
A method for the time resolution of molecules which comprises: determining the retention time on a chromatography system for each molecule of interest in a plurality of molecules; selecting a compatible grouping of crude molecules to form a set on the basis of retention time, resolvability, and system parameters; combining a mixture of the compatible crude molecules of interest from the set, wherein the molecules are derived from parallel syntheses; simultaneously preparative chromatographing the mixture to provide separation and purification of the molecules of interest based on their retention times; collecting the fractions which contain the molecules of interest; and verifying analytically the identity of the molecule of interest in each fraction.
Claim 12
Independent Claim 112 words
A method for the time resolution of molecules which comprises: determining the retention time on a chromatography system for each molecule of interest in a plurality of molecules; selecting a compatible grouping of crude molecules to form a set on the basis of retention time, resolvability, and system parameters; combining a mixture of the compatible crude molecules of interest from the set, wherein the molecules are derived from parallel syntheses; simultaneously preparative chromatographing the mixture to provide separation and purification of the molecules of interest based on their retention times; collecting the fractions which contain the molecules of interest; and verifying analytically the identity of the molecule of interest in each fraction.
Claim 13
Dependent Claim 56 words
The method according to claim 10 which further comprises forming a compatible grouping of between 4 and 12 molecules of interest based on distinct retention times of each target molecule of the grouping; mixing the grouping of molecules; and chromatographically separating the mixture to increase the purity of at least some of the target molecules therein.
Claim 14
Dependent Claim 23 words
The method according to claim 11 wherein the mixture is chromatographically separated to increase the purity of all of the target molecules therein.
Claim 15
Dependent Claim 70 words
The method according to claim 10 wherein the chromatography system is a HPLC system and which further comprises forming a compatible grouping of between 4 and 12 crude molecules of interest based on distinct retention times of each target molecule of the grouping; mixing the grouping of molecules; and chromatographically separating the mixture on a HPLC column to increase the purity of at least some of the target molecules therein.
Claim 16
Dependent Claim 27 words
The method according to claim 13 wherein the mixture is chromatographically separated on the HPLC column to increase the purity of all of the target molecules therein.
Claim 17
Dependent Claim 38 words
The method according to claim 13 wherein the compatible grouping includes between 4 to 6 crude molecules of interest, at least one of which is chromatographically separated to increase the purity of that molecule to at least 65%.
Claim 18
Dependent Claim 24 words
The method according to claim 15 wherein the purity of at least some of the crude molecules of interest is increased to about 80%.
Claim 19
Dependent Claim 24 words
The method according to claim 15 wherein the purity of all of the crude molecules of interest is increased to at least about 80%.
Claim 20
Dependent Claim 30 words
The method according to claim 13 wherein the retention time of each target molecule is between 15 and 90 seconds different from the retention time of any other target molecule.
Claim 21
Dependent Claim 29 words
The method according to claim 13 wherein the retention time of each target molecule is between 15 and 90 seconds different from the retention time of any other molecule.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-06-15 2001-12-15 2002-06-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-06-15 2005-12-15 2006-06-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-06-15 2009-12-15 2010-06-16 $7700.00 Window Closed / Lapsed

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