期刊
ACS OMEGA
卷 7, 期 8, 页码 -出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.1c06637
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资金
- CONACyT [FORDECYT-PRONACES/610286/2020]
A gold(I)-catalyzed cycloisomerization procedure was developed for the synthesis of substituted 4H-benzo[d][1,3]-oxazines. The obtained compounds showed potential as drug candidates for breast cancer treatment.
The first gold(I)-catalyzed cycloisomerization procedure applied to the synthesis of substituted 4H-benzo[d][1,3]-oxazines has been developed starting from N-(2-alkynyl)aryl benzamides. The chemoselective oxygen cyclization via the 6-exo-dig pathway yielded the observed heterocycles in modest to good chemical yields under very mild reaction conditions. The obtained oxazines were assayed on the breast cancer (BC)-derived cell lines MCF-7 and HCC1954 with differential biological activity. The newly synthesized 4H-benzo[d][1,3]oxazine compounds showed several degrees of cell proliferation inhibition with a remarkable effect for those compounds having a substituted aryl at C-2 of the molecules. The 4H-benzo[d][1,3]oxazines showed an IC50 ranking from 3.1 to 95 mu M in MCF-7 and HCC1954 cells. These compounds represent potential drug candidates for BC treatment. However, additional assays are needed to elucidate their complete effect over the cellular and molecular hallmarks of cancer.
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