Patent number: 8389743
Abstract: This invention is directed to a compound of formula I, wherein R1, R2, R4, R5, R6, R7, R8 and n are as defined herein, or a pharmaceutically acceptable salt thereof; a pharmaceutical composition containing a compound of formula I, a process of preparation of a compound of formula I, a method of treatment of a disorder or condition such as depression, mood disorders, schizophrenia, anxiety disorders, Alzheimer's disease, attention-deficit hyperactivity disorder (ADHD), psychotic disorders, cognitive disorders, sleep disorders, obesity, dizziness, epilepsy, motion sickness, respiratory diseases, allergy, allergy-induced airway responses, allergic rhinitis, nasal congestion, allergic congestion, congestion, hypotension, cardiovascular disease, diseases of the GI tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract that may be treated by antagonizing histamine H3 receptors, the method comprising administering to a mammal in need of such treatment a compound of formula I as descri
Type:
Grant
Filed:
March 9, 2012
Date of Patent:
March 5, 2013
Assignee:
Pfizer Inc.
Inventors:
Travis T. Wager, Ramalakshmi Yegna Chandrasekaran, Todd William Butler
Publication number: 20120220568
Abstract: This invention is directed to a compound of formula I, wherein R1, R2, R4, R5, R6, R7, R8 and n are as defined herein, or a pharmaceutically acceptable salt thereof; a pharmaceutical composition containing a compound of formula I, a process of preparation of a compound of formula I, a method of treatment of a disorder or condition such as depression, mood disorders, schizophrenia, anxiety disorders, Alzheimer's disease, attention-deficit hyperactivity disorder (ADHD), psychotic disorders, cognitive disorders, sleep disorders, obesity, dizziness, epilepsy, motion sickness, respiratory diseases, allergy, allergy-induced airway responses, allergic rhinitis, nasal congestion, allergic congestion, congestion, hypotension, cardiovascular disease, diseases of the GI tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract that may be treated by antagonizing histamine H3 receptors, the method comprising administering to a mammal in need of such treatment a compound of formula I as descri
Type:
Application
Filed:
March 9, 2012
Publication date:
August 30, 2012
Inventors:
Travis T. Wager, Ramalakshmi Y. Chandrasekaran, Todd William Butler
Patent number: 6521630
Abstract: The present invention relates to tetrahydroquinazoline-2,4-diones derivatives of the formula (I):
pharmaceutically acceptable salts thereof, wherein A is (CH2)n where n is equal to 0, 1 or 2; U is CH2, NH, or NR3, R1 and R2 are selected independently from H, (C1-C6)alkyl, Cl, F, CN, nitro, CF3, —NHC(O)R6 and —OR7, or R1 and R2, together with the atoms to which they are attached, form a carbocyclic or heterocyclic five- or six-membered ring, R3 is selected from the group consisting of H, (C1-C6)malkyl, C(═O)—(C1-C6)alkyl, where m=1 or 2; R4 and R5 are selected from H, (C1-C6)alkyl, Cl, F, —CF3, —CN, —NHC(═O)R6, —OR7, a 5-to 7-membered aryl or heteroaryl ring, where m, R6 and R7 are as defined above; and R6 and R7 are selected independently from H, (C1-C6)alkyl or a 5- to 7-membered aryl or heteroaryl ring; V is CH, CR3, or N; W is CH2, C(O), or S(O)2; X is C or N; and Y is CH, CR1,CR2, or N.
Type:
Grant
Filed:
August 29, 2000
Date of Patent:
February 18, 2003
Assignee:
Pfizer Inc.
Inventors:
Anton Franz Joseph Fliri, Todd William Butler, Randall James Gallaschun, John Anthony Ragan, Brian Patrick Jones