SULFONAMIDE DERIVATIVE AND PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALT THEREOF
申请人:UNIVERSITY OF TSUKUBA
公开号:US20180179151A1
公开(公告)日:2018-06-28
The present invention aims to provide a novel low-molecular-weight compound exhibiting an orexin receptor agonist activity and expected to be useful as a prophylactic or therapeutic agent for narcolepsy and the like. The present invention provides a compound represented by the formula (I):
wherein each symbol is as defined in the description, or a pharmaceutically acceptable acid addition salt thereof, which has an orexin receptor agonist activity, and an orexin receptor agonist containing the compound or a pharmaceutically acceptable acid addition salt thereof.
Preparation of N-substituted imidazolidinones and N-substituted
申请人:The Dow Chemical Company
公开号:US04642351A1
公开(公告)日:1987-02-10
The invention is a process for the preparation of N-substituted imidazolidinones and N-substituted 2-thionimidazolidinones which comprises contacting an oxazolidinone with a compound containing a nitrogen directly bonded to a carbonyl or a thiocarbonyl group in the presence of a Lewis acid catalyst or the hydrate of a Lewis acid catalyst under conditions such that an N-substituted imidazolidinone or N-substituted 2-thionimidazolidinone is prepared. The compound containing a nitrogen directly bonded to a carbonyl or a thiocarbonyl group is an isocyanate or isothiocyanate or a compound wherein the nitrogen is reactive and the carbonyl or thiocarbonyl group is further bonded to a substituent by a bond which is clevable under the reaction conditions. The Lewis acid catalyst corresponds to the formula MX.sub.n wherein M is a group IB-VIIIB, IIIA or IVA element with the proviso that M is not C or Si; X is a halogen; and n is 2, 3 or 4.
Sulfonamide derivative and pharmaceutically acceptable acid addition salt thereof
申请人:UNIVERSITY OF TSUKUBA
公开号:US10351522B2
公开(公告)日:2019-07-16
The present invention aims to provide a novel low-molecular-weight compound exhibiting an orexin receptor agonist activity and expected to be useful as a prophylactic or therapeutic agent for narcolepsy and the like. The present invention provides a compound represented by the formula (I):
wherein each symbol is as defined in the description, or a pharmaceutically acceptable acid addition salt thereof, which has an orexin receptor agonist activity, and an orexin receptor agonist containing the compound or a pharmaceutically acceptable acid addition salt thereof.
Phenylimidazolidin-2-one Derivatives as Selective 5-HT<sub>3</sub> Receptor Antagonists and Refinement of the Pharmacophore Model for 5-HT<sub>3</sub> Receptor Binding
metoclopramide, a D2 receptorantagonist with weak 5-HT3receptorantagonist properties, and zetidoline, a D2 receptorantagonist. Starting from this premise, a series of phenylimidazolidin-2-one derivatives bearing a basic azabicycloalkyl or an imidazolylalkyl moiety were synthesized and evaluated for 5-HT3receptor radioligand binding affinity ([3H]-GR 43,694). In vitro 5-HT3receptorantagonist activity was