Complete chemical shift assignment and molecular modeling studies of two chromene derivatives as potential leads for new anticancer drugs
作者:Priscila Ivo Rubim de Santana、Denise Cristian Ferreira Neto、Arlan da Silva Goncalves、Joyce Sobreiro Francisco Diz de Almeida、Tanos Celmar Costa França、José Daniel Figueroa-Villar
DOI:10.1080/07391102.2020.1790419
日期:2021.10.13
2H, 3H, 4H, 5H-chromeno[2,3-d]pyrimidin-5-yl)]-1,3-diazinane-2,4,6-trione (7), were synthesized from dimedone and barbituric acid and had their three-dimensional structures and precise chemical shifts assignments obtained by Nuclear Magnetic Resonance (NMR) from 1H, 13C, APT, COSY, HSQC, and HMBC spectra. Additional HOMO-LUMO DFT calculations corroborated the NMR results and pointed to the most stable
摘要 化合物7-氯-9-(2-羟基-4,4-二甲基-6-氧代环己-1-烯-1-基)-3,3-二甲基-2,3,4,9-四氢-1H- xanthen-1-one ( 5 ) 和 5-[-7-chloro-2,4-dioxo-1H, 2H, 3H, 4H, 5H-chromeno[2,3-d]pyrimidin-5-yl)]-1 ,3-diazinane-2,4,6-trione ( 7 ) 由二甲酮和巴比妥酸合成,并通过核磁共振 (NMR) 从1 H, 13获得了它们的三维结构和精确的化学位移分配C、APT、COSY、HSQC 和 HMBC 光谱。额外的 HOMO-LUMO DFT 计算证实了 NMR 结果,并指出了每种化合物最稳定的立体异构体。此外,进一步的对接和分子动力学研究表明立体异构体 (9S)-7-chloro-9-(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-en-1-yl)-3