Patents by Inventor Sagun Tandel

Sagun Tandel 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).

  • Methods for preparing N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl)carbamide and its tartrate salt and polymorphic form c
    Patent number: 11840515
    Abstract: Disclosed herein are methods for obtaining N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N-(4-(2-methylpropyloxy)phenylmethyl) carbamide (pimavanserin) comprising the step of contacting an intermediate according to Formula (A) or a salt thereof, with an intermediate Formula B, or a salt thereof, to produce pimavanserin or a salt thereof wherein Y is —ORi or —NR2aR2b; R3 is hydrogen or substituted or unsubstituted heteroalicyclyl, R4 is substituted or unsubstituted aralkyl; X is —OR22 or —NR23R24; (wherein R22 is hydrogen or substituted or unsubstituted C1-6alkyl and one of R23 and R24 is hydrogen and the other is hydrogen or N-methylpiperidin-4-yl); and R21 is —OCH2CH(CH3)2 or F; Also disclosed herein is the tartrate salt of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide and methods for obtaining the salt.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: December 12, 2023
    Assignee: ACADIA Pharmaceuticals Inc.
    Inventors: Marlon Carlos, Sagun Tandel, Roger Olsson, Mikael Hillgren, Matthew J. Fleming, Andreas Philipp Boudier, Beat T. Weber
  • METHODS FOR PREPARING N-(4-FLUOROBENZYL)-N-(1-METHYLPIPERIDIN-4-YL)-N'-(4-(2-METHYLPROPYLOXY)PHENYLMETHYL)CARBAMIDE AND ITS TARTRATE SALT AND POLYMORPHIC FORM C
    Publication number: 20220024871
    Abstract: Disclosed herein are methods for obtaining N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N-(4-(2-methylpropyloxy)phenylmethyl) carbamide (pimavanserin) comprising the step of contacting an intermediate according to Formula (A) or a salt thereof, with an intermediate Formula B, or a salt thereof, to produce pimavanserin or a salt thereof wherein Y is —ORi or —NR2aR2b; R3 is hydrogen or substituted or unsubstituted heteroalicyclyl, R4 is substituted or unsubstituted aralkyl; X is —OR22 or —NR23R24; (wherein R22 is hydrogen or substituted or unsubstituted C1-6alkyl and one of R23 and R24 is hydrogen and the other is hydrogen or N-methylpiperidin-4-yl); and R21 is —OCH2CH(CH3)2 or F; Also disclosed herein is the tartrate salt of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide and methods for obtaining the salt.
    Type: Application
    Filed: March 16, 2021
    Publication date: January 27, 2022
    Inventors: Marlon Carlos, Sagun Tandel, Roger Olsson, Mikael Hillgren, Matthew J. Fleming, Andreas Philipp Boudier, Beat T. Weber
  • Methods for preparing N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl)carbamide and its tartrate salt and polymorphic form
    Patent number: 10981870
    Abstract: Disclosed herein are methods for obtaining N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide (pimavanserin) comprising the step of contacting an intermediate according to Formula (A) or a salt thereof, with an intermediate Formula B, or a salt thereof, to produce pimavanserin or a salt thereof wherein Y is —ORi or —NR2aR2b; R3 is hydrogen or substituted or unsubstituted heteroalicyclyl, R4 is substituted or unsubstituted aralkyl; X is —OR22 or —NR23R24; (wherein R22 is hydrogen or substituted or unsubstituted C1-6alkyl and one of R23 and R24 is hydrogen and the other is hydrogen or N-methylpiperidin-4-yl); and R21 is —OCH2CH(CH3)2 or F; Also disclosed herein is the tartrate salt of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide and methods for obtaining the salt.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: April 20, 2021
    Assignee: ACADIA Pharmaceuticals Inc.
    Inventors: Marlon Carlos, Sagun Tandel, Roger Olsson, Mikael Hillgren, Matthew J. Fleming, Andreas Philipp Boudier, Beat T. Weber
  • Methods for preparing N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl)carbamide and its tartrate salt and polymorphic form C
    Patent number: 10981871
    Abstract: Disclosed herein are methods for obtaining N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide (pimavanserin) comprising the step of contacting an intermediate according to Formula (A) or a salt thereof, with an intermediate Formula B, or a salt thereof, to produce pimavanserin or a salt thereof wherein Y is —ORi or —NR2aR2b; R3 is hydrogen or substituted or unsubstituted heteroalicyclyl, R4 is substituted or unsubstituted aralkyl; X is —OR22 or —NR23R24; (wherein R22 is hydrogen or substituted or unsubstituted C1-6alkyl and one of R23 and R24 is hydrogen and the other is hydrogen or N-methylpiperidin-4-yl); and R21 is —OCH2CH(CH3)2 or F; Also disclosed herein is the tartrate salt of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide and methods for obtaining the salt.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: April 20, 2021
    Assignee: ACADIA Pharmaceuticals Inc.
    Inventors: Marlon Carlos, Sagun Tandel, Roger Olsson, Mikael Hillgren, Matthew J. Fleming, Andreas Philipp Boudier, Beat T. Weber
  • METHODS FOR PREPARING N-(4-FLUOROBENZYL)-N-(1-METHYLPIPERIDIN-4-YL)-N'-(4-(2-METHYLPROPYLOXY)PHENYLMETHYL)CARBAMIDE AND ITS TARTRATE SALT AND POLYMORPHIC FORM
    Publication number: 20200181087
    Abstract: Disclosed herein are methods for obtaining N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide (pimavanserin) comprising the step of contacting an intermediate according to Formula (A) or a salt thereof, with an intermediate Formula B, or a salt thereof, to produce pimavanserin or a salt thereof wherein Y is —ORi or —NR2aR2b; R3 is hydrogen or substituted or unsubstituted heteroalicyclyl, R4 is substituted or unsubstituted aralkyl; X is —OR22 or —NR23R24; (wherein R22 is hydrogen or substituted or unsubstituted C1-6alkyl and one of R23 and R24 is hydrogen and the other is hydrogen or N-methylpiperidin-4-yl); and R21 is —OCH2CH(CH3)2 or F; Also disclosed herein is the tartrate salt of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide and methods for obtaining the salt.
    Type: Application
    Filed: February 10, 2020
    Publication date: June 11, 2020
    Applicant: ACADIA Pharmaceuticals Inc.
    Inventors: Marlon Carlos, Sagun Tandel, Roger Olsson, Mikael Hillgren, Matthew J. Fleming, Andreas Philipp Boudier, Beat T. Weber
  • METHODS FOR PREPARING N-(4-FLUOROBENZYL)-N-(1-METHYLPIPERIDIN-4-YL)-N'-(4-(2-METHYLPROPYLOXY)PHENYLMETHYL)CARBAMIDE AND ITS TARTRATE SALT AND POLYMORPHIC FORM
    Publication number: 20200165202
    Abstract: Disclosed herein are methods for obtaining N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N,-(4-(2-methylpropyloxy)phenylmethyl) carbamide (pimavanserin) comprising the step of contacting an intermediate according to Formula (A) or a salt thereof, with an intermediate Formula B, or a salt thereof, to produce pimavanserin or a salt thereof wherein Y is —OR, or —NR2aR2b; R3 is hydrogen or substituted or unsubstituted heteroalicyclyl, R4 is substituted or unsubstituted aralkyl; X is —OR22 or —NR23R24; (wherein R22 is hydrogen or substituted or unsubstituted C1-4 alkyl and one of R23 and R24 is hydrogen and the other is hydrogen or N- methylpiperidin-4-yl); and R21 is —OCH2CH(CH3)2 or F; Also disclosed herein is the tartrate salt of N-(4-fluorobemzyl)-N-(1-methylpiperidin-4-yl)-N?,-(4-(2-methylpropyloxy)phenylmethyl) carbamide and methods for obtaining the salt.
    Type: Application
    Filed: January 15, 2020
    Publication date: May 28, 2020
    Applicant: ACADIA Pharmaceuticals Inc.
    Inventors: Marlon Carlos, Sagun Tandel, Roger Olsson, Mikael Hillgren, Matthew J. Fleming, Andreas Philipp Boudier, Beat T. Weber
  • Methods for preparing N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl)carbamide and its tartrate salt and polymorphic form C
    Patent number: 10597363
    Abstract: Disclosed herein are methods for obtaining N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide (pimavanserin) comprising the step of contacting an intermediate according to Formula (A) or a salt thereof, with an intermediate Formula B, or a salt thereof, to produce pimavanserin or a salt thereof wherein Y is —ORi or —NR2aR2b; R3 is hydrogen or substituted or unsubstituted heteroalicyclyl, R4 is substituted or unsubstituted aralkyl; X is —OR22 or —NR23R24; (wherein R22 is hydrogen or substituted or unsubstituted C1-6alkyl and one of R23 and R24 is hydrogen and the other is hydrogen or N-methylpiperidin-4-yl); and R21 is —OCH2CH(CH3)2 or F; Also disclosed herein is the tartrate salt of N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide and methods for obtaining the salt.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: March 24, 2020
    Assignee: ACADIA Pharmaceuticals Inc.
    Inventors: Marlon Carlos, Sagun Tandel, Roger Olsson, Mikael Hillgren, Matthew J. Fleming, Andreas Philipp Boudier, Beat T. Weber
  • METHODS FOR PREPARING N-(4-FLUOROBENZYL)-N-(1-METHYLPIPERIDIN-4-YL)-N'-(4-(2-METHYLPROPYLOXY)PHENYLMETHYL)CARBAMIDE AND ITS TARTRATE SALT AND POLYMORPHIC FORM
    Publication number: 20190047955
    Abstract: Disclosed herein are methods for obtaining N-(4-fluorobenzyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide (pimavanserin) comprising the step of contacting an intermediate according to Formula (A) or a salt thereof, with an intermediate Formula B, or a salt thereof, to produce pimavanserin or a salt thereof wherein Y is —ORi or —NR2aR2b; R3 is hydrogen or substituted or unsubstituted heteroalicyclyl, R4 is substituted or unsubstituted aralkyl; X is —OR22 or —NR23R24; (wherein R22 is hydrogen or substituted or unsubstituted C1-6alkyl and one of R23 and R24 is hydrogen and the other is hydrogen or N-methylpiperidin-4-yl); and R21 is —OCH2CH(CH3)2 or F; Also disclosed herein is the tartrate salt of N-(4-fluoroben-zyl)-N-(1-methylpiperidin-4-yl)-N?-(4-(2-methylpropyloxy)phenylmethyl) carbamide and methods for obtaining the salt.
    Type: Application
    Filed: July 19, 2016
    Publication date: February 14, 2019
    Inventors: Marlon Carlos, Sagun Tandel, Roger Olsson, Mikael Hillgren, Matthew J. Fleming, Andreas Philipp Boudier, Beat T. Weber