Method of using aryl-or heteroaryl-1-alkyl-pyrrole-2-carboxylic acid
申请人:Merrell Dow Pharmaceuticals Inc.
公开号:US05039695A1
公开(公告)日:1991-08-13
This invention relates to the method of using aryl- or heteroaryl-1-alkyl-pyrrole-2-carboxylic acid compounds to treat interleukin-1 mediated conditions.
A Convergent, Modular Approach to Trifluoromethyl‐Bearing 5‐Membered Rings via Catalytic C(sp
<sup>3</sup>
)−H Activation
作者:Kai Wu、Xuyang Zhang、Liang‐Liang Wu、Jie‐Sheng Huang、Chi‐Ming Che
DOI:10.1002/anie.202215891
日期:2023.2.20
modular approach to access CF3-bearing 5-membered carbo- and heterocycles via catalytic C (sp3)−H insertion is demonstrated. In the case of carbocycles, an asymmetric benzylic C−H insertion process allowed to reach high regio-, diastereo- and enantioselectivities. This protocol can be applied to the synthesis of chiral CF3 analogues of medicinal agents and natural products. The origin of selectivity
Method of using aryl-or heteroaryl-1-alkyl-pyrrole-2-carboxylic acid compounds in the treatment of interleukin-1 mediated conditions
申请人:MERRELL DOW PHARMACEUTICALS INC.
公开号:EP0381142A2
公开(公告)日:1990-08-08
This invention relates to the method of using aryl- or heteroaryl-1-alkyl-pyrrole-2-carboxylic acid compounds to treat interleukin-1 mediated conditions.
Optically active biphenyl derivative, process for preparation thereof, liquid crystal composition containing the same as effective component, and liquid crystal element using the same
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0395390A1
公开(公告)日:1990-10-31
Disclosed herein are a novel optically active biphenyl derivative, a process of the preparation thereof a ferroelectric liquid crystal composition containing the same and a liquid crystal element using the composition.
The above optically active biphenyl derivatives including optically active biphenyl carboxylic acid derivative, hydroxybiphenyl derivative, alkoxybiphenylalkanol derivative and alkylbiphenylalkanol derivative have the following structural formula:
wherein R' represents an alkyl group of 3-20 carbon atoms, R2 represents an alkyl group or alkoxyalkyl group of 1-20 carbon atoms which may optionally be substituted with at least one halogen atom. X represents -0-, -COO-or -OCO-. m represents 0 or 1, n represents an integer of 1-6 and p represents 0 or 1. mark represents an asymmetric carbon atom.
These optically active' biphenyl derivatives are useful as a ferroelectric liquid crystal material or its component having a sufficient spontaneous polarization and by which a high speed response is possible and which further exhibits a ferroelectric liquid crystal phase in a temperature region around room temperature.