The present invention extends to a compound of formula I:
or a pharmaceutically acceptable salt of said compound, or a pharmaceutical composition comprising the compound of formula I and a pharmaceutically acceptable carrier. The invention is also directed to the use of a compound of formula I as an inhibitor of tryptase and for treating a patient suffering from, or subject to, a physiological condition in need of amelioration by an inhibitor of tryptase. The invention further includes methods for the preparation of a compound of formula I.
A liquid crystal composition which prevents production of an alignment defect of a liquid crystal compound and also has excellent storage stability during dissolution in a solvent is provided. The liquid crystal composition is suitable for constituting a retardation film capable of favorable circular polarization conversion. The liquid crystal composition includes a polymerizable liquid crystal compound having 3 or more ring structures in the main chain, and aluminum. A content of the aluminum is 1 ppm or more and 170 ppm or less relative to the polymerizable liquid crystal compound.
A liquid crystal composition containing a polymerizable liquid crystal compound (A) having 5 or more ring structures in its main chain and a polymer (B) of the polymerizable liquid crystal compound (A) having 5 or more ring structures in its main chain, which inhibits occurrence of an orientation defect of a liquid crystal compound and exhibits excellent storage stability when dissolved in a solvent is provided.
Liquid crystal composition, method of producing the same, and retardation film constituted from the same
申请人:Sumitomo Chemical Company, Limited
公开号:US11193065B2
公开(公告)日:2021-12-07
A liquid crystal composition is provided containing a polymerizable liquid crystal compound, the composition having high preservation stability when dissolved in a solvent and also having the ability to restrain the development of orientation defects of the liquid crystal compound. A method of producing such a liquid crystal composition is also provided with ease. The liquid crystal composition includes a first polymerizable liquid crystal compound having five or more ring structures on its principal chain and represented by the following formula (A) and a second polymerizable liquid crystal compound having five or more ring structures and represented by the following formula (B).