The invention provides compounds of formula I
wherein R is H or alkyl;
R
1
, R
2
, and R
4
are independently at each occurrence a C
1
-C
20
aliphatic radical, a C
3
-C
20
aromatic radical, or a C
3
-C
20
cycloaliphatic radical; R
3
and R
5
are independently at each occurrence hydrogen, a C
1
-C
20
aliphatic radical, a C
3
-C
20
aromatic radical, or a C
3
-C
20
cycloaliphatic radical; and
a, b and d are independently 0 or an integer ranging from 1 to 3. The invention further provides polymers derived from compounds of formula I, said polymers may be polyesters, polyethers, polycarbonates, polyestercarbonates, polyetherketones, polyethersulfones, and the like. Compounds and polymers of the invention find use in light emitting devices.
[EN] COMPOSITIONS AND METHODS FOR INHIBITING GROUP II INTRON RNA<br/>[FR] COMPOSITIONS ET MÉTHODES POUR INHIBER DES ARN D'INTRON DE GROUPE II
申请人:UNIV YALE
公开号:WO2019147894A1
公开(公告)日:2019-08-01
The present invention provides compositions and methods for inhibiting group II intron splicing for treating or preventing a disease or disorder associated with an organism harboring an active group II intron. The present invention also provides compositions and methods for inhibiting group II intron splicing for inhibiting, preventing or reducing growth of an organism harboring an active group II intron.
Organophotoreceptor with charge transport compound having an epoxy group
申请人:——
公开号:US20040081903A1
公开(公告)日:2004-04-29
This invention relates to a novel organophotoreceptor that comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having
a) a novel charge transport compound having the formula
1
where X is a divalent hydrocarbon group of 1 to 30 carbon atoms, or a divalent hydrocarbon group of 1 to 30 carbon atoms where there is at least one substitution of a carbon atom by a heteroatom provided that no two heteroatoms may be adjacent within the backbone of an aliphatic divalent hydrocarbon radical, R
1
is an aryl group or a heterocyclic group, R
2
is a (N,N-disubstituted)arylamine group, and R
3
is an epoxy group; and
(b) a charge generating compound.
The epoxy group can be reacted with a functional group within the polymer to form a polymeric charge transport compound either directly or through a crosslinking agent.