Abstract
Synthesis of 1,5-disubstituted tetrazoles by the cyclization of sodium azide with N(N),N'-di(tri)substituted carbamimidothioate is reported. Tetrazoles are obtained in good to excellent yield in the absence of a catalyst. All the compounds were characterized by NMR and HRMS analysis. Single crystal X-ray diffraction data of 1-(4-chlorophenyl)-4-(5-phenyl- 1H-tetrazol-1-yl)piperazine 5g is also provided. Further, these disubstituted tetrazoles were tested against the proliferation of human breast cancer cells (MCF-7), which identified 5e as a lead compound. Finally, we have shown in silico that these compounds may interact with the ligand binding domain of estrogen receptor α (ERα), that expresses at high amount in MCF-7 cells.
Keywords: Cyclocondensation, carbamimidothioates, sodium azide, tetrazoles, cytotoxicity, MCF-7.
Graphical Abstract
[http://dx.doi.org/10.1007/s00044-012-0140-9]
[http://dx.doi.org/10.1016/j.ejmech.2003.11.016] [PMID: 15051176]
[http://dx.doi.org/10.1016/j.biopha.2017.07.152] [PMID: 28802233]
[http://dx.doi.org/10.1016/S0968-0896(02)00239-0] [PMID: 12213451]
[http://dx.doi.org/10.1007/s10847-013-0334-x]
[http://dx.doi.org/10.1039/C7RA01607G]
[http://dx.doi.org/10.1002/ppap.200700077]
[http://dx.doi.org/10.1016/j.ejmech.2015.08.054] [PMID: 26352675]
[http://dx.doi.org/10.1016/j.bmcl.2011.04.024] [PMID: 21536435]
[http://dx.doi.org/10.1016/j.ejmech.2007.10.035] [PMID: 18155810]
[http://dx.doi.org/10.1055/s-0032-1317513]
[http://dx.doi.org/10.1080/00397910903370683]
[http://dx.doi.org/10.1016/j.tetlet.2004.07.160]
[http://dx.doi.org/10.1021/cc060119p] [PMID: 17580974]
[http://dx.doi.org/10.1016/j.jorganchem.2018.04.027]
[http://dx.doi.org/10.1039/c0ob01007c] [PMID: 21431153]
[http://dx.doi.org/10.1021/jo2025509] [PMID: 22423599]
[http://dx.doi.org/10.1021/acs.joc.9b00555] [PMID: 30945854]
[http://dx.doi.org/10.1016/j.tetlet.2015.03.128]
[http://dx.doi.org/10.1021/acs.joc.8b01261] [PMID: 30037227]
[http://dx.doi.org/10.1021/ol006465b] [PMID: 11009390]
[http://dx.doi.org/10.1055/s-0031-1290762 ]
[http://dx.doi.org/10.1016/j.tetlet.2012.10.110]
[http://dx.doi.org/10.1016/j.tetlet.2013.07.079]
[http://dx.doi.org/10.1055/s-0039-1690616]
[http://dx.doi.org/10.1055/s-0039-1690821]
[http://dx.doi.org/10.1055/s-0039-1690328]
[http://dx.doi.org/10.1107/S0108767390000277]
[http://dx.doi.org/10.1107/S2053229614024218] [PMID: 25567568]
[http://dx.doi.org/10.1016/j.bmcl.2015.04.010] [PMID: 25920563]