Structure–activity relationship of triaryl propionic acid analogues on the human EP 3 prostanoid receptor
摘要:
Potent and selective ligands for the human EP3 prostanoid receptor are described. Triaryl compounds bearing an ortho-substituted propionic acid moiety were identified as potent EP3 antagonists based on the SAR described herein. The binding affinities of key compound on all eight human prostanoid receptors is reported. (C) 2003 Elsevier Ltd. All rights reserved.
Structure–activity relationship of triaryl propionic acid analogues on the human EP 3 prostanoid receptor
摘要:
Potent and selective ligands for the human EP3 prostanoid receptor are described. Triaryl compounds bearing an ortho-substituted propionic acid moiety were identified as potent EP3 antagonists based on the SAR described herein. The binding affinities of key compound on all eight human prostanoid receptors is reported. (C) 2003 Elsevier Ltd. All rights reserved.
Catalyst component for the polymerization of .alpha.-olefins and a
申请人:Mitsubishi Chemical Corporation
公开号:US05594081A1
公开(公告)日:1997-01-14
The present invention provides a catalyst for polymerizing an .alpha.-olefin which is capable of producing an .alpha.-olefin polymer having a high molecular weight in a high yield under the polymerization conditions including at high temperature, and a process for preparing an .alpha.-olefin polymer, which catalyst comprises a Component (A) which comprises a coordination compound having a skeleton of a metallocene compound comprising an indenyl ring or a hydroindenyl ring which is an indenyl having a six-membered portion hydrogenated as a ligand and having Ti, Zr or Hf as a metal component in combination with a Component (B) which is, for example, an alumoxane. The coordination compound is crosslinked at the six-membered rings characterized by the fact that two of the indenyl or hydroindenyl groups are crosslinked at the six-membered ring of the indenyl or hydroindenyl group.
Catalysts for olefin polymerization and a process for preparing olefin
申请人:Mitsubishi Chemical Corporation
公开号:US05942459A1
公开(公告)日:1999-08-24
The object of the present invention is to provide a polyolefin having a good particle property in a high yield without use of an expensive alumoxane. The present invention comprises a catalyst for olefin polymerization comprising the following ingredients (A), (B) and (C), and a process for preparing an olefin polymer with use of the catalyst: Component (A): a transition metal compound having at least one conjugated five-membered ring ligand, the transition metal being in the Groups IV-VI of the Periodic Table, Component (B): an organoaluminum compound, and Component (C): a finely divided particle composition comprising 0.1-99.9% by weight of boric acid.
Catalyst component for the polymerization of alpha-olefins and a process for preparing alpha-olefin polymers with use of same
申请人:Mitsubishi Chemical Corporation
公开号:EP0693502A1
公开(公告)日:1996-01-24
The present invention provides a catalyst for polymerizing an α-olefin which is capable of producing an α-olefin polymer having a high molecular weight in a high yield under the polymerization conditions including at high temperature, and a process for preparing an α-olefin polymer, which catalyst comprises a Component (A) represented by the formulae (Ia) or (Ib) in which M is Ti, Zr or Hf
in combination with a Component (B) which is, for example, an alumoxane.