【摘 要】
：
A novel derivative of glycyrrhetinic acid, (E)-ethyl 3-keto-18β-glycyrrhetinate 3-oxime C32H49NO4 (Mr = 511.72), was synthesized and structurally characterized
【机 构】
：
School of Chemistry and Chemical Engineering,Hebei University Health Science Center
【基金项目】
：
山东省自然科学基金;National Basic Research Priority Program
论文部分内容阅读
A novel derivative of glycyrrhetinic acid, (E)-ethyl 3-keto-18β-glycyrrhetinate 3-oxime C32H49NO4 (Mr = 511.72), was synthesized and structurally characterized by IR,1H NMR and single-crystal X-ray diffraction. It belongs to monoclinic, space group P21, with a = 12.4897(12), b = 7.3190(7), c = 15.9944(14) (A),β = 94.833(2)°, V= 1456.9(2) (A)3, Z= 2, Dc = 1.167 g/cm3, μ = 0.075 mm-1, F(000) = 560, the final R = 0.0449 and wR = 0.1122. A total of 7486 reflections were collected, of which 2785 were independent (Rint = 0.0199) and 2605 were observed with Ⅰ＞ 2σ(Ⅰ). There exists an intermolecular hydrogen bond which helps to stabilize the crystal structure.
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