Oligomerisation of ethylene to linear α-olefins by tetrahedral cobalt(II) precursors stabilised by benzo[b]thiophen-2-yl-substituted (imino)pyridine ligands
摘要:
On activation by MAO, 2-(imino)pyridine cobalt dichlorides bearing a benzo[b]thiophen-2-yl substituent in the 6-position of the pyridine ring oligomerise ethylene to alpha-olefins with turn-over-frequencies as high as 1.5 x 10(6) mol of C2H4 converted (mol of Co x h)(-1) and productivities as high as 3769 kg of oligomers (mol of Co x h x bar)(-1). Aldimine precursors are more active than ketimine analogues, yet ketimines give higher molecular weight oligomers. (C) 2003 Elsevier B.V. All rights reserved.
The present invention provides an agent for the prophylaxis or treatment of autoimmune diseases (e.g., psoriasis, rheumatoid arthritis, inflammatory bowel disease, Sjogren's syndrome, Behcet's disease, multiple sclerosis, systemic lupus erythematosus etc.) and the like, which has a superior Tyk2 inhibitory action.
The present invention relates to a compound represented by the formula
wherein each symbol is as defined in the specification, or a salt thereof.
[EN] CXCR4 INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE CXCR4 ET LEURS UTILISATIONS
申请人:X4 PHARMACEUTICALS INC
公开号:WO2021263203A1
公开(公告)日:2021-12-30
The present invention relates to compounds and methods of inhibiting C-X-C receptor type 4 (CXCR4). The invention also provides pharmaceutically acceptable compositions comprising compounds of the present invention and methods of using said compositions in the treatment of various diseases.
The present invention relates to compounds of formula (I):
and pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, A and B are as defined herein. The invention also relates to pharmaceutical compositions comprising these compounds, methods of using these compounds in the treatment of various diseases and disorders, processes for preparing these compounds and intermediates useful in these processes.