Constructing novel dihydrofuran and dihydroisoxazole analogues of isocombretastatin-4 as tubulin polymerization inhibitors through [3+2] reactions.
Bioorg Med Chem
; 25(20): 5290-5302, 2017 10 15.
Article
en En
| MEDLINE
| ID: mdl-28803799
ABSTRACT
[3+2] reactions play a key role in constructing various pharmaceutical moleculars. In this study, using Mn(OAc)3 mediated and 1,3-dipolar [3+2] cyclization reactions, 38 novel dihydrofuran and dihydroisoxazole analogues of isoCA-4 were synthesized as inhibitors of tubulin polymerization. Among them, compound 6g was found to be the most potent cytotoxic agents against PC-3 cells with IC50 value of 0.47µM, and compound 5p exhibted highest activity on HeLa cells with IC50 vaule of 2.32µM. Tubulin polymerization assay revealed that 6g was a dose-dependent and effective inhibitor of tubulin assembly. Immunohistochemistry studies and cell cycle distribution analysis indicated that 6g severely disrupted microtubule network and significantly arrested most cells in the G2/M phase of the cell cycle in PC-3 cells. In addition, molecular docking studies showed that two chiral isomers of 6g can bind efficiently and similarly at colchicine binding site of tubulin.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Estilbenos
/
Tubulina (Proteína)
/
Polimerizacion
/
Furanos
/
Isoxazoles
/
Antineoplásicos
Límite:
Humans
Idioma:
En
Año:
2017
Tipo del documento:
Article