6325-58-2Relevant articles and documents
Characterization of molecular complexes of 1,4-naphthoquinone derivatives
Marjit Singh,Baruah, Jubaraj B.
, p. 952 - 958 (2011)
The structures of sulphur atom tethered quinone containing flexible carboxylic acid (3-methyl-1,4-dioxo-1,4-dihydronaphthalen-2-ylsulfanyl)acetic acid (1) and its molecular complex with 4,4′-bipyridine (3) are determined. The compound 1 crystallizes in P-1 (triclinic, a = 7.5378(6) A, b = 7.6413(7) A, c = 10.3101(9) A; α = 89.779 (7)°, β = 81.042 (5)°, γ = 89.101(7)°) and the molecular complex 3 crystallises in P2(1)/n (monoclinic, a = 9.3383(7) A, b = 3.970(3) A, c = 42.130(3) A, β = 91.056(5)°) space groups, respectively. The R 2 2 (8) type hydrogen bonding between dicarboxylic acid groups present in the parent compound 1 is lost on interaction with 4, 4′-bipyridine; in the molecular complex 3 R 2 2 (7) type of O???H-C and O-H???N interactions are present between the pyridine rings and carboxylic acid groups. The molecular complex (4) derived from 3-carboxymethylsulfanyl-1,4- dihydroxynaphthalen-2-yl-sulfanyl) acetic acid (2) with triphenylphosphine oxide in 1:2 ratio, crystallises in C2/c space group have monoclinic, a = 26.0494(13) A, b = 10.5402(5) A, c = 17.1023(8) A, β = 108.719 (5)°). The triphenylphosphine oxide molecules are preferentially held by O-H???O interactions between carboxylic acid and P=O bond.
Design, synthesis, and biological evaluation of novel naphthoquinone derivatives with CDC25 phosphatase inhibitory activity
Brun, Marie-Priscille,Braud, Emmanuelle,Angotti, Delphine,Mondesert, Odile,Quaranta, Muriel,Montes, Matthieu,Miteva, Maria,Gresh, Nohad,Ducommun, Bernard,Garbay, Christiane
, p. 4871 - 4879 (2007/10/03)
CDC25 dual-specificity phosphatases are essential key regulators of eukaryotic cell cycle progression and the CDC25A and B isoforms are over-expressed in different tumors and related cancer cell lines. CDC25s are now considered to be interesting targets in the search for novel anticancer agents. We describe new compounds derived from vitamin K3 that inhibit CDC25B activity with IC50 values in the low micromolar range. These naphthoquinone derivatives also display antiproliferative activity on HeLa cells as expected for CDC25 inhibitors and inhibit cell growth in a clonogenic assay at submicromolar concentrations. They increase inhibitory tyrosine 15 phosphorylation of CDK and induce the cleavage of PARP, a hallmark of apoptosis.