Dimethylenastron

• CAT Number: I005182
• CAS Number: 863774-58-7
• Molecular Formula: C16H18N2O2S
• Molecular Weight: 302.39
• Purity: ≥95%
• Synonyms: 4-(3-hydroxyphenyl)-7,7-dimethyl-2-sulfanylidene-3,4,6,8-tetrahydro-1H-quinazolin-5-one
• InChI: InChI=1S/C16H18N2O2S/c1-16(2)7-11-13(12(20)8-16)14(18-15(21)17-11)9-4-3-5-10(19)6-9/h3-6,14,19H,7-8H2,1-2H3,(H2,17,18,21)
• InChIKey: RUOOPLOUUAYNPY-UHFFFAOYSA-N
• SMILES: CC1(CC2=C(C(NC(=S)N2)C3=CC(=CC=C3)O)C(=O)C1)C

Dimethylenastron is a potent kinesin Eg5 inhibitor, with an IC50 of 200 nM.
Dimethylenastron is a potent Eg5 inhibitor, with an IC50 of 200 nM. Dimethylenastron exhibits no inhibition of five other kinesin subfamilies (kinesin 1/4/7/10 and one ungrouped-originating from 4 different organisms). Dimethylenastron (0.5, 1 μM) causes accumulation of cells in G2/M in HeLa cells[1]. Dimethylenastron (3 and 10 μM) concentration-dependently suppresses the migratory ability of the cancer cells in PANC1 pancreatic cancer cells after treatment for 24 h, but does not inhibit the proliferation of cancer cells at 24 h until 72 h. Dimethylenastron also reduces invasion ability of the cancer cells[2].
Dimethylenastron (1.0 µmol) induces a milder scarring but the length of bleb survival is not significantly prolonged compared with the control group. Dimethylenastron (1.0 µmol) reveals a markedly reduced ratio of intraocular pressure and a milder, but not obviously reduced, subconjunctival fibrotic reaction in the rabbits treated with glaucoma filtration surgery[3].

Reference

[1]. Gartner M, et al. Development and biological evaluation of potent and specific inhibitors of mitotic Kinesin Eg5. Chembiochem. 2005 Jul;6(7):1173-7.
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[2]. Sun XD, et al. Dimethylenastron suppresses human pancreatic cancer cell migration and invasion in vitro via allosteric inhibition of mitotic kinesin Eg5. Acta Pharmacol Sin. 2011 Dec;32(12):1543-8.
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[3]. Lüke J, et al. The effect of adjuvant dimethylenastron, a mitotic Kinesin Eg5 inhibitor, in experimental glaucoma filtration surgery. Curr Eye Res. 2010 Dec;35(12):1090-8.
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