respectively. The synthesized compounds have been characterized with the help of spectroscopic techniques like 1 H, 13 C NMR, FT-IR, UV–visible spectroscopy and mass spectrometry. Density functional theory (DFT) with B3LYP functional and 6-31G (d, p) basis set has been used for the Quantum chemical calculations. UV–Vis spectra of the synthesized compounds were also recorded and electronic properties such as frontier
摘要 已经合成了新的孕烷-
薯蓣皂苷元前药。该路线涉及通过用
邻苯二甲酸酐酯化
薯蓣皂苷元(1)制备3β-25R-spirost-5ene 3yl-benzoate-2-
羧酸(2)。通过用 3β-羟基 16α-甲氧基 pregn-5-ene-20-one ( 3 ) 和 3β 处理 3β-25R-spirost-5ene 3yl-benzoate-2-
羧酸 ( 2 ) 合成了孕烷-
薯蓣皂苷元前药 5 和 6 -hydroxypregn-5, 16-diene-20-one ( 4 ) 分别。合成的化合物已在光谱技术的帮助下进行了表征,如 1 H、13 C NMR、FT-IR、紫外-可见光谱和质谱。具有 B3LYP 泛函和 6-31G (d, p) 基组的密度泛函理论 (DFT) 已用于量子
化学计算。还记录了合成化合物的紫外-可见光谱,并通过 TD-DFT 方法计算了电子特性,如前沿轨道和带隙能量。分子内相互作用已通过