Design and Optimization of 3′-(Imidazo[1,2- a]pyrazin-3-yl)-[1,1′-biphenyl]-3-carboxamides as Selective DDR1 Inhibitors
DDR1 is considered as a promising target for cancer therapy, and selective inhibitors against DDR1 over other kinases may be considered as promising therapeutic agents. Herein, we have identified a series of 3′-(imidazo[1,2-a]pyrazin-3-yl)-[1,1′-biphenyl]
ORGANOMETALLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE ORGANOMETALLIC COMPOUND, AND DIAGNOSTIC COMPOSITION INCLUDING THE ORGANOMETALLIC COMPOUND
An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.
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Paragraph 0369; 0370; 0371
(2019/07/10)
Synthesis of butadiyne-bridged [4n] metacyclophanes having exo-annular t-butyl groups
Butadiyne-bridged [44]- and [48]metacyclophanes having exo-annular t-butyl groups were prepared by intermolecular Eglinton coupling of the dimeric unit or by intramolecular ring closure of the linear tetramer. Comparison of the 1H and 13C NMR spectra of [44]metacyclophane with those of [48]cyclophane and diphenylbutadiyne revealed its prominent geometrical feature due to deformation of the triple bonds from linearity. The [44]Metacyclophane was converted into [08]thiophenometacyclophane in good yield by treatment with sodium sulfide.
Synthesis and self-association properties of diethynylbenzene macrocycles
We synthesized diethynylbenzene macrocycles (DBMs), cyclic oligomers of diethynylbenzene, having functional groups in the periphery of the macrocyclic framework and investigated their self-association properties in solution resulting from π-π stacking interaction. The tetrakis-DBM having hexadecyl ester groups showed dimerization behavior not only in chloroform-d, but also in o-dichlorobenzene-4.