نتایج جستجو برای: 2 hydroxynaphthalene 14 dione
تعداد نتایج: 2734250 فیلتر نتایج به سال:
In the title compound, C21H23N3O7, the pyrimidine-dione ring adopts a screw-boat conformation, whereas the cyclo-hexenone ring adopts an envelope conformation, with the C atom bearing the methyl groups as the flap atom. The dihedral angle between the mean planes of the pyrimidine-dione and cyclo-hexenone rings is 58.78 (2)°. The pyrimidine-dione and cyclo-hexenone rings form dihedral angles of ...
In the title co-crystal, C(16)H(14)N(4)O(2)·2C(7)H(6)O(2), the 3,4-bis-[(pyridin-3-ylmeth-yl)amino]-cyclo-but-3-ene-1,2-dione squareamide mol-ecules assemble into chains along the b axis via N-H⋯O hydrogen bonds. The benzoic acid mol-ecules then hydrogen bond to the pyridine rings via O-H⋯N hydrogen bonds, supported by weaker C-H⋯O hydrogen bonds, forming extended ribbons. The asymmetric unit c...
THE TITLE COMPOUND [SYSTEMATIC NAME: 9-ethyl-13-hy-droxy-14-methyl-2-(3,4,5-trimeth-oxy-6-methyl-tetra-hydro-2H-pyran-2-yl-oxy)-3,3a,5b,6,9,10,11,12,13,14,16a,16b-dodeca-hydro-1H-as-indaceno[3,2-d][1]oxacyclo-dodecine-7,15(2H,5aH)-dione], C(33)H(50)O(9), was obtained by hydrolysis of Spinosyn A. The fused cyclo-pentene ring adopts a twisted conformation, while the fused cyclo-hexene and cyclo-p...
BACKGROUND Ubiquitous polycyclic aromatic hydrocarbons (PAHs) have been shown to alter gene expression patterns and elevate micronuclei (MN) frequency, but the underlying mechanisms are largely unknown. MicroRNAs (miRNAs) are key gene regulators that may be influenced by PAH exposures and mediate their effects on MN frequency. OBJECTIVES We sought to identify PAH-associated miRNAs and evaluat...
In the title one-dimensional coordination polymer, [Ag(NO(3))(C(12)H(6)N(2)O(2))](n), the Ag(I) atom is penta-coordinated by two N atoms from a 1,10-phenanthroline-5,6-dione (phen-dione) ligand, one O atom from the nitrate anion and two O atoms from another phen-dione ligand. The coordination environment around silver is slightly distorted square-pyramidal. Inter-estingly, the Ag-O distances to...
Cyclic alcohols Cyclohexane-1.2-dione hydrolase Thiamine diphosphate Flavoenzyme Alicyclic alcohols are naturally occurring compounds wh ich can be degraded by microorgan isms via cleavage of the ring CC bond. DenitrifyingAzoarcus sp. strain 22Lin grows on cyclohexane-l .2-diol which serves as electron donor and carbon source. The diol is converted to cyclohexane-l.2-dione followed by hydrolysi...
The title salt, C(3)H(10)N(+)·C(14)H(8)F(3)O(2) (-), constitutes the first organic crystal containing a residue of 4,4,4-trifluoro-1-(naphthalen-2-yl)butane-1,3-dione. The terminal -CF(3) group is disordered over two locations [occupancy ratio = 0.830 (7):0.170 (7)]. Bond delocalization involving the two carbonyl groups and the α-carbon was observed. The crystal packing is mediated by several s...
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