Patents by Inventor Xiangqun Xie

Xiangqun Xie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11560352
    Abstract: A compound, or a pharmaceutically acceptable salt thereof, having a formula I of: wherein Ar is an arylene or heteroarylene; R1 has a structure of: wherein W is an alkanediyl, alkenediyl, a carbonyl, or a combination thereof; X is —NR5—, wherein R5 is H or an alkyl, or —O—; and Y is optionally-substituted cycloalkyl, optionally-substituted cycloalkyl-substituted alkyl, optionally-substituted heterocycloalkyl, or optionally-substituted heterocycloalkyl-substituted alkyl; each R2 is the same or different and has a structure of: wherein Z is —NR6—, wherein R6 is H or an alkyl, —O—, —S—, or —CH2—; Z1 is (—CH2-)m wherein m is 0 to 5, or an alkenediyl having 2 to 6 carbon atoms; Cy is a 3-8-membered cycloalkyl, heterocycloalkyl, aryl or heteroaryl ring; and each R4 is the same or different and is selected from hydroxy, halogen, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl, or amino; and c is 0 to 5; and each R3 is the same or different and is selected from hy
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: January 24, 2023
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventor: Xiangqun Xie
  • Publication number: 20210009506
    Abstract: A compound, or a pharmaceutically acceptable salt thereof, having a formula I of: wherein Ar is an arylene or heteroarylene; R1 has a structure of: wherein W is an alkanediyl, alkenediyl, a carbonyl, or a combination thereof; X is —NR5—, wherein R5 is H or an alkyl, or —O—; and Y is optionally-substituted cycloalkyl, optionally-substituted cycloalkyl-substituted alkyl, optionally-substituted heterocycloalkyl, or optionally-substituted heterocycloalkyl-substituted alkyl; each R2 is the same or different and has a structure of: wherein Z is —NR6—, wherein R6 is H or an alkyl, —O—, —S—, or —CH2—; Z1 is (—CH2-)m wherein m is 0 to 5, or an alkenediyl having 2 to 6 carbon atoms; Cy is a 3-8-membered cycloalkyl, heterocycloalkyl, aryl or heteroaryl ring; and each R4 is the same or different and is selected from hydroxy, halogen, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl, or amino; and c is 0 to 5; and each R3 is the same or different and is selected from hy
    Type: Application
    Filed: July 29, 2020
    Publication date: January 14, 2021
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventor: Xiangqun Xie
  • Patent number: 10759739
    Abstract: A compound, or a pharmaceutically acceptable salt thereof, having a formula I of: wherein Ar is an arylene or heteroarylene; R1 has a structure of: wherein W is an alkanediyl, alkenediyl, a carbonyl, or a combination thereof; X is —NR5—, wherein R5 is H or an alkyl, or —O—; and Y is optionally-substituted cycloalkyl, optionally-substituted cycloalkyl-substituted alkyl, optionally-substituted heterocycloalkyl, or optionally-substituted heterocycloalkyl-substituted alkyl; each R2 is the same or different and has a structure of: wherein Z is —NR6—, wherein R6 is H or an alkyl, —O—, —S—, or —CH2—; Z1 is (—CH2—)m wherein m is 0 to 5, or an alkenediyl having 2 to 6 carbon atoms; Cy is a 3-8-membered cycloalkyl, heterocycloalkyl, aryl or heteroaryl ring; and each R4 is the same or different and is selected from hydroxy, halogen, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl, or amino; and c is 0 to 5; and each R3 is the same or different and is selected from hydrox
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 1, 2020
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventor: Xiangqun Xie
  • Publication number: 20180265452
    Abstract: A compound, or a pharmaceutically acceptable salt thereof, having a formula I of: wherein Ar is an arylene or heteroarylene; R1 has a structure of: wherein W is an alkanediyl, alkenediyl, a carbonyl, or a combination thereof; X is —NR5—, wherein R5 is H or an alkyl, or —O—; and Y is optionally-substituted cycloalkyl, optionally-substituted cycloalkyl-substituted alkyl, optionally-substituted heterocycloalkyl, or optionally-substituted heterocycloalkyl-substituted alkyl; each R2 is the same or different and has a structure of: wherein Z is —NR6—, wherein R6 is H or an alkyl, —O—, —S—, or —CH2—; Z1 is (—CH2—)m wherein m is 0 to 5, or an alkenediyl having 2 to 6 carbon atoms; Cy is a 3-8-membered cycloalkyl, heterocycloalkyl, aryl or heteroaryl ring; and each R4 is the same or different and is selected from hydroxy, halogen, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl, or amino; and c is 0 to 5; and each R3 is the same or different and is selected from hy
    Type: Application
    Filed: June 7, 2016
    Publication date: September 20, 2018
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventor: Xiangqun Xie
  • Patent number: 9624235
    Abstract: A method for treating a neoplasm in a subject, comprising co-administering to the subject a therapeutically effective amount of an anticancer agent and a substituted 6,7-methylenedioxy-4-amino-quinoline, or a pharmaceutically acceptable salt or ester thereof.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: April 18, 2017
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Barry I. Gold, Xiangqun Xie, Ajay Srinivasan, LiRong Wang
  • Publication number: 20140371259
    Abstract: A method for treating a neoplasm in a subject, comprising co-administering to the subject a therapeutically effective amount of an anticancer agent and a substituted 6,7-methylenedioxy-4-amino-quinoline, or a pharmaceutically acceptable salt or ester thereof.
    Type: Application
    Filed: January 29, 2013
    Publication date: December 18, 2014
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Barry I. Gold, Xiangqun Xie, Ajay Srinivasan, LiRong Wang
  • Patent number: 8466131
    Abstract: A compound of Formula I: (I) has activity as a cannabinoid receptor antagonist. In Formula 1, R1 is unsubstituted or substituted aryl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted heterocyclyl, unsubstituted or substituted aralkyl, or unsubstituted or substituted heteroaryl; R2 is unsubstituted or substituted alkyl, unsubstituted or substituted aryl, or unsubstituted or substituted heteroaryl; and R3 is unsubstituted or substituted alkyl, unsubstituted or substituted aralkyl, or unsubstituted or substituted heteroaralkyl; with the proviso that at least one of Ri and R3 is other than unsubstituted aralkyl or R2 is other than unsubstituted aryl.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: June 18, 2013
    Assignee: University of Pittsburgh—of the Commonwealth System of Higher Education
    Inventors: Xiangqun Xie, Jianzhong Chen, Yuxun Zhang
  • Publication number: 20110118214
    Abstract: A compound of Formula I: (I) has activity as a cannabinoid receptor antagonist. In Formula 1, R1 is unsubstituted or substituted aryl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted heterocyclyl, unsubstituted or substituted aralkyl, or unsubstituted or substituted heteroaryl; R2 is unsubstituted or substituted alkyl, unsubstituted or substituted aryl, or unsubstituted or substituted heteroaryl; and R3 is unsubstituted or substituted alkyl, unsubstituted or substituted aralkyl, or unsubstituted or substituted heteroaralkyl; with the proviso that at least one of Ri and R3 is other than unsubstituted aralkyl or R2 is other than unsubstituted aryl.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 19, 2011
    Inventors: Xiangqun Xie, Jianzhong Chen, Yuxun Zhang