Patents by Inventor Michael Man-chu Lo

Michael Man-chu Lo 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).

  • Publication number: 20120232039
    Abstract: A compound having the structure useful for treating hypertension, Pulmonary Arterial Hypertension (PAH), congestive heart failure, conditions resulting from excessive water retention, cardiovascular disease, diabetes, oxidative stress, endothelial dysfunction, cirrhosis, pre-eclampsia, osteoporosis or nephropathy.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 13, 2012
    Inventors: Amjad ALI, Michael Man-Chu Lo, Brent Whitehead, Shrenik K. Shah, Lin Yan, Timothy J. Henderson, Zack Zhiqiang Guo
  • Patent number: 8252825
    Abstract: A compound having the structure wherein R is an angiotensin receptor antagonist active group, and Y is 1) —(CH2)3R5, 2) —C(O)(CH2)2R5, 3) —C(R1R2)OC(O)O(CH2)nR5, wherein n is 1 or 2, 4) —C(R1R2)OC(O)CH2CH2R5, 5) —C(R1R2)OC(O)OCH2CH2C(R3R4)R5, provided that when Y is —C(O)(CH2)2R5, then R is R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and C1-4 alkyl; R5 is —CH(ONO2)CH(ONO2)R6; R6 is selected from CH3, CH2CH3 and CH(CH3)2; or a pharmaceutically acceptable salt or hydrate thereof, which is useful for treating hypertension.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: August 28, 2012
    Assignees: NicOx, Merck Sharp & Dohme Corp.
    Inventors: Amjad Ali, Michael Man-Chu Lo, Christopher Franklin, Nicoletta Almirante, Silvia Stefanini, Laura Storoni, Stefano Biondi, Ennio Ongini
  • Publication number: 20120208838
    Abstract: A compound having the structure (I) wherein R is selected from the group consisting of 1) and 2), or a pharmaceutically acceptable salt thereof, and methods of using the compounds for treating hypertension.
    Type: Application
    Filed: October 22, 2010
    Publication date: August 16, 2012
    Inventors: Amjad Ali, Christopher Franklin, Ravi Nargund, Michael Man-Chu Lo, Lin Yan, Pei Huo
  • Publication number: 20120202845
    Abstract: A compound having the structure formula (I) or a pharmaceutically acceptable salt thereof, and methods of using the compounds for treating hypertension.
    Type: Application
    Filed: September 20, 2010
    Publication date: August 9, 2012
    Inventors: Amjad Ali, Michael Man-Chu Lo, Lin Yan
  • Patent number: 8207208
    Abstract: A compound having the structure R—Y wherein R is, for example, Y is selected from the group consisting of 1) R5, 2) —C(R1R2)(C(R3R4))0-1Y1R5, and 3) —C(R1R2)—O—Y1R5; R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and C1-4 alkyl; R5 is Y1 is selected from the group consisting of —C(O)—O— and —P(O)(OR6)—O—; and R6 is hydrogen or CH3, or a pharmaceutically acceptable salt thereof, and methods of using the compounds for treating hypertension.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: June 26, 2012
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Amjad Ali, Michael Man-chu Lo, Iyassu K. Sebhat, Chris Franklin, Nicoletta Almirante, Silvia Stefanini, Stefano Biondi, Ennio Ongini
  • Patent number: 8106034
    Abstract: A compound having the structure wherein R is an angiotensin receptor blocking group Y is —(CR1R20)1-7R5, or —C(O)(CR1R20)1-7R5; R1 and R20 are independently selected from the group consisting of hydrogen or C1-4 alkyl; R5 is —O—N?N(O)—NR3R4; and R3 and R4 are independently selected from the group consisting of —CH2CH2OH, —CH2CH2OCH3, —C1-4 alkyl, unsubstituted or substituted C1-6 alkenyl, unsubstituted or substituted morpholino, amino, unsubstituted or substituted benzyl, unsubstituted or substituted phenyl, unsubstituted or substituted arylC1-4 alkyl, or R3 and R4 together with the nitrogen atom to which they are attached, form a ring selected from the group consisting of or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable salt of the stereoisomer thereof, which is useful for treating hypertension.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: January 31, 2012
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Amjad Ali, Michael Man-Chu Lo
  • Patent number: 8053455
    Abstract: A compound having the structure wherein R is an angiotensin receptor antagonist active group, Y is selected from the group consisting of and —C(R1H)OC(O)X((CR12R13)—(CHR10)m—(CH2)n—Zp—(CH2)q—(CHR11)r—(CR16R17))—R5;??2) Z is —O— or —(CR14R15)—; m, n, p, q, and r are independently selected from the group consisting of 0 and 1; X is —O— or —(CR18R19)—; R1 is selected from the group consisting of hydrogen, C1-4 alkyl, aryl and C1-4 alkylaryl; R5 is —O—N?N(O)—R3R4; or a pharmaceutically acceptable salt or hydrate thereof, which is useful for treating hypertension.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: November 8, 2011
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Amjad Ali, Michael Man-Chu Lo, Christopher Franklin, Brent Whitehead
  • Publication number: 20110230532
    Abstract: A compound having the structure wherein Y is selected from the group consisting of —C(O)OR2, —C(O)NHR8, —C(CH2)1-2OR3, OH, and or a pharmaceutically acceptable salt thereof, and methods of using the compounds for treating hypertension.
    Type: Application
    Filed: July 27, 2009
    Publication date: September 22, 2011
    Inventors: Amjad Ali, Robert K. Baker, Kathleen M. Rupprecht, Michael Man-Chu Lo, Brent Whitehead
  • Publication number: 20110201621
    Abstract: A compound having the structure wherein R is an angiotensin receptor antagonist active group, Y is selected from the group consisting of and 2) —C(R1H)OC(O)X((CR12R13)—(CHR10)m—(CH2)n—Zp—(CH2)q—(CHR11)r—(CR16R17))—R5; Z is —O— or —(CR14R15)—; m, n, p, q, and r are independently selected from the group consisting of 0 and 1; X is —O— or —(CR18R19)—; R1 is selected from the group consisting of hydrogen, C1-4 alkyl, aryl and C1-4 alkylaryl; R5 is —O—N?N(O)—NR3R4; or a pharmaceutically acceptable salt or hydrate thereof, which is useful for treating hypertension.
    Type: Application
    Filed: April 25, 2011
    Publication date: August 18, 2011
    Applicant: MERCK SHARP & DOHME CORP.
    Inventors: Amjad ALI, Michael Man-Chu LO, Christopher FRANKLIN, Brent R. WHITEHEAD
  • Patent number: 7947664
    Abstract: A compound having the structure wherein R is an angiotensin receptor antagonist active group, Y is selected from the group consisting of and 2) —C(R1H)OC(O)X((CR12R13)—(CHR10)m—(CH2)n—Zp—(CH2)q—(CHR11)r—(CR16R17))—R5; Z is —O— or —(CR14R15)—; m, n, p, q, and r are independently selected from the group consisting of 0 and 1; X is —O— or —(CR18R19)—; R1 is selected from the group consisting of hydrogen, C1-4 alkyl, aryl and C1-4 alkylaryl; R5 is —O—N?N(O)—NR3R4; or a pharmaceutically acceptable salt or hydrate thereof, which is useful for treating hypertension.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: May 24, 2011
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Amjad Ali, Michael Man-Chu Lo, Christopher Franklin, Brent R. Whitehead
  • Publication number: 20110065765
    Abstract: A compound having the structure R—Y wherein R is, for example, Y is selected from the group consisting of 1) R5, 2) —C(R1R2)(C(R3R4))0-1Y1R5, and 3) —C(R1R2)—O—Y1R5; R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and C1-4 alkyl; R5 is Y1 is selected from the group consisting of —C(O)—O— and —P(O)(OR6)—O—; and R6 is hydrogen or CH3, or a pharmaceutically acceptable salt thereof, and methods of using the compounds for treating hypertension.
    Type: Application
    Filed: May 6, 2009
    Publication date: March 17, 2011
    Inventors: Amjad Ali, Michael Man-chu Lo, Iyassu K. Sebhat, Chris Franklin, Nicoletta Almirante, Silvia Stefanini, Stefano Biondi, Ennio Ongini
  • Publication number: 20110052674
    Abstract: New angiotensin II receptor blocker nitroderivatives of general formula (I) and pharmaceutically acceptable salts or stereoisomers thereof: and their use for treating cardiovascular, renal and chronic liver diseases, inflammatory processes and metabolic syndromes.
    Type: Application
    Filed: February 19, 2009
    Publication date: March 3, 2011
    Applicants: MERCK SHARP & DOHME CORP., NICOX S.A.
    Inventors: Nicoletta Almirante, Alessia Nicotra, Valentino Mandelli, Stefano Biondi, Silvia Stefanini, Iyassu K. Sebhat, Michael Man-Chu Lo
  • Patent number: 7880014
    Abstract: A compound having the structure wherein R is an angiotensin receptor antagonist active group, Y is -Y1-Y2-Y3-Y4-Y5-; Y1 is C(R1R2); R1 is selected from the group consisting of hydrogen and C1-4 alkyl; R2 is selected from the group consisting of hydrogen, C1-4 alkyl, and —OC(O)C1-4 alkyl; Y2 is O or CH2; Y3 is C(O) or CH2; Y4 is O or CH2; Y5 is —(CH2)1-2—(X)0-1—(CH2)0-1— or is absent; X is —O— or —CR3R4—; and R3 and R4 are independently selected from the group consisting of hydrogen and C1-C4 alkyl; or a pharmaceutically acceptable salt or hydrate thereof, which is useful for treating hypertension.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: February 1, 2011
    Assignees: Merck Sharp & Dohme Corp., NiCox S.A.
    Inventors: Iyassu K. Sebhat, Michael Man-chu Lo, Ravi P. Nargund, Amjad Ali, Chris Franklin, Nicoletta Almirante, Laura Storoni, Silvia Stefanini
  • Publication number: 20100311800
    Abstract: The present invention relates to nitrooxyderivatives of angiotensin II receptor antagonists.
    Type: Application
    Filed: February 19, 2009
    Publication date: December 9, 2010
    Inventors: Nicoletta Almirante, Alessia Nicotra, Silvia Stefanini, Stefano Biondi, Ennio Ongini, Amjad Ali, Michael Man-chu Lo
  • Publication number: 20100298277
    Abstract: A compound having the structure wherein R is an angiotensin receptor blocking group Y is —(CR1R20)1-7R5, or —C(O)(CR1R20)1-7R5; R1 and R20 are independently selected from the group consisting of hydrogen or C1-4 alkyl; R5 is —O—N?N(O)—NR3R4; and R3 and R4 are independently selected from the group consisting of —CH2CH2OH, —CH2CH2OCH3, —C1-4 alkyl, unsubstituted or substituted C1-6 alkenyl, unsubstituted or substituted morpholino, amino, unsubstituted or substituted benzyl, unsubstituted or substituted phenyl, unsubstituted or substituted arylC1-4 alkyl, or R3 and R4 together with the nitrogen atom to which they are attached, form a ring selected from the group consisting of or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable salt of the stereoisomer thereof, which is useful for treating hypertension.
    Type: Application
    Filed: January 29, 2009
    Publication date: November 25, 2010
    Inventors: Amjad Ali, Michael Man-Chu Lo
  • Publication number: 20100292192
    Abstract: A compound having the structure wherein R is an angiotensin receptor antagonist active group, Y is selected from the group consisting of and 2) —C(R1H)OC(O)X((CR12R13)—(CHR10)m—(CH2)n—Zp—(CH2)q—(CHR11)r—(CR16R17))—R5; Z is —O— or —(CR14R15)_; m, n, p, q, and r are independently selected from the group consisting of 0 and 1; X is —O— or —(CR18R19)—; R1 is selected from the group consisting of hydrogen, C1-4 alkyl, aryl and C1-4 alkylaryl; R5 is —O—N?N(O)—NR3R4; or a pharmaceutically acceptable salt or hydrate thereof, which is useful for treating hypertension.
    Type: Application
    Filed: January 8, 2009
    Publication date: November 18, 2010
    Inventors: Amjad Ali, Michael Man-Chu Lo, Christopher Franklin, Brent R. Whitehead
  • Patent number: 7834042
    Abstract: A compound having the structure (Formula I), wherein Y is —Y1—Y2—Y3—Y4—Y5—; Y1 is C(O) or C(R1R2); Y2 is O, C(O), P(O)(OH) or CH2, provided that when Y1 is C(O), Y2 is not C(O); R1 is selected from the group consisting of hydrogen and C1-4 alkyl; R2 is selected from the pup consisting of hydrogen, C1-4 alkyl, and —OC(O)C1-4 alkyl; Y3 is O, C(O) or CH2, provided that when Y2 is C(O), then Y3 is not C(O), and further provided that when Y2 is O, then Y3 is not O; Y4 is O or CH2 or is absent, provided that when Y3 is O, then Y4 is not O; Y5 is —(CH2)1-2—(X)0-1—(CH2)0-1— or is absent; X is —O— or —CR3R4—; and R3 and R4 are independently selected from the group consisting of hydrogen and C1-C4 alkyl; or a pharmaceutically acceptable salt thereof, which is useful for treating hypertension.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: November 16, 2010
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Iyassu K. Sebhat, Michael Man-chu Lo, Ravi P. Nargund, Amjad Ali
  • Publication number: 20100273845
    Abstract: A compound having the structure wherein R is an angiotensin receptor antagonist active group, and Y is 1) —(CH2)3R5, 2) —C(O)(CH2)2R5, 3) —C(R1R2)OC(O)O(CH2)nR5, wherein n is 1 or 2, 4) —C(R1R2)OC(O)CH2CH2R5, 5) —C(R1R2)OC(O)OCH2CH2C(R3R4)R5, provided that when Y is —C(O)(CH2)2R5, then R is R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen and C1-4 alkyl; R5 is —CH(ONO2)CH(ONO2)R6; R6 is selected from CH3, CH2CH3 and CH(CH3)2; or a pharmaceutically acceptable salt or hydrate thereof, which is useful for treating hypertension.
    Type: Application
    Filed: November 21, 2008
    Publication date: October 28, 2010
    Inventors: Amjad Ali, Michael Man-Chu Lo, Chris Franklin, Nicoletta Almirante, Silvia Stefanini, Laura Storoni, Stefano Biondi, Ennio Ongini
  • Publication number: 20100152259
    Abstract: A compound having the structure (Formula I), wherein R an angiotensin receptor antagonist active group, Y is Y1—Y2—Y3—Y4—Y5. Y1 is C(R1R2); R1 is selected from the group consisting of hydrogen and C1-4 alkyl; R2 is selected from the group consisting of hydrogen, C1-4 alkyl, and -0C(0)C1-4 alkyl; Y2 is O or CH2; Y3 is C(O) or CH2; Y4 is O or CH2; Y5 is —(CH2)1-2—(X)0-1—CH2)0-1— or is absent; X is —O— or —CR3R4—; and R3 and R4 are independently selected from the group consisting of hydrogen and C1-C4 alkyl; or a pharmaceutically acceptable salt or hydrate thereof, which is useful for treating hypertension.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 17, 2010
    Applicants: Merck & Co Inc., NICox S.A.
    Inventors: Iyassu K. Sebhat, Michael Man-chu Lo, Ravi P. Nargund, Amjad Ali, Chris Franklin, Nicoletta Almirante, Laura Storoni, Silvia Stefanini
  • Publication number: 20100152258
    Abstract: A compound having the structure (Formula I), wherein Y is —Y1, —Y2, —Y3, —Y4, —Y5; Y1 is C(O) or C(R1R2); Y2 is O, C(O), P(O)(OH) or CH2, provided that when Y1 is C(O), Y2 is not C(O); R1 is selected from the group consisting of hydrogen and C1-4 alkyl; R2 is selected from the pup consisting of hydrogen, C1-4 alkyl, and —OC(O)C1-4 alkyl; Y3 is O, C(O) or CH2, provided that when Y2 is C(O), then Y3 is not C(O), and further provided that when Y2 is O, then Y3 is not O; Y4 is O or CH2 or is absent, provided that when Y3 is O, then Y4 is not O; Y5 is —(CH2)1-2—(X)0-1—(CH2)0-1— or is absent; X is —O— or —CR3R4—; and R3 and R4 are independently selected from the group consisting of hydrogen and C1-C4 alkyl; or a pharmaceutically acceptable salt thereof, which is useful for treating hypertension.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 17, 2010
    Applicant: Merck & Co. Inc.
    Inventors: lyassu K. Sebhat, Michael Man-chu Lo, Ravi P. Nargund, Amjad Ali