(+)-Magoilgomer A[(±)-1]and magoilgomer B(2)were identified from the bark of Magnolia officinalis var.biloba.(+)-1 and(-)-1 were a pair of novel biphenyl derivatives featuring three C6-C3 subunits.2 was an unprec...(+)-Magoilgomer A[(±)-1]and magoilgomer B(2)were identified from the bark of Magnolia officinalis var.biloba.(+)-1 and(-)-1 were a pair of novel biphenyl derivatives featuring three C6-C3 subunits.2 was an unprecedented adduct containing magnolol and honokiol.These three oligomers possessed new parallel mode which should be biosynthesized from the coupling of three or four C6-C3 subunits.The structures of(±)-1 and 2 were elucidated based on the spectroscopic data analyses and electronic circular dichroism(ECD)calculations.2 exhibited neuroprotective effects of oxygen glucose deprivation-induced SK-N-SH cell injury.展开更多
目的对井冈山产凹叶厚朴Magnolia officinalis var biloba果实、花、干皮、叶4个部位的挥发油成分进行分析,为厚朴不同部位的入药性质提供参考。方法采用水蒸气蒸馏法提取厚朴4个部位的挥发油,运用气相色谱-质谱联用(GC-MS)技术对挥发...目的对井冈山产凹叶厚朴Magnolia officinalis var biloba果实、花、干皮、叶4个部位的挥发油成分进行分析,为厚朴不同部位的入药性质提供参考。方法采用水蒸气蒸馏法提取厚朴4个部位的挥发油,运用气相色谱-质谱联用(GC-MS)技术对挥发油成分进行分析和鉴定,采用峰面积归一化法确定各成分的质量分数。结果从井冈山产凹叶厚朴的挥发油中共鉴定出75个化学成分,其中果实中鉴定出1-石竹烯、α-蒎烯等42个成分,质量分数占98.7%:花中鉴定出4-羟基-4-甲基-2-戊酮、茨烯等19个成分,质量分数占77.59%:干皮中鉴定出α-按叶油醇、四十四烷等24个成分,质量分数占77.92%;叶中鉴定出1-石竹烯、α-桉叶油醇等32个成分,质量分数占76.48%。1-石竹烯和四十三烷为4个部位共有。结论从凹叶厚朴挥发油成分角度,凹叶厚朴叶可替代厚朴皮入药,果实可以入药,花活性成分量很少,不建议入药。展开更多
基金supported by the National Natural Science Foundation of China(No.81730093)the CAMS Innovation Fund for Medical Sciences(No.2017-I2M-3-010)In Dependent Project of State Key Laboratory of Bioactive Substance and Function of Natural Medicines(No.GTZA201803)。
文摘(+)-Magoilgomer A[(±)-1]and magoilgomer B(2)were identified from the bark of Magnolia officinalis var.biloba.(+)-1 and(-)-1 were a pair of novel biphenyl derivatives featuring three C6-C3 subunits.2 was an unprecedented adduct containing magnolol and honokiol.These three oligomers possessed new parallel mode which should be biosynthesized from the coupling of three or four C6-C3 subunits.The structures of(±)-1 and 2 were elucidated based on the spectroscopic data analyses and electronic circular dichroism(ECD)calculations.2 exhibited neuroprotective effects of oxygen glucose deprivation-induced SK-N-SH cell injury.
文摘目的对井冈山产凹叶厚朴Magnolia officinalis var biloba果实、花、干皮、叶4个部位的挥发油成分进行分析,为厚朴不同部位的入药性质提供参考。方法采用水蒸气蒸馏法提取厚朴4个部位的挥发油,运用气相色谱-质谱联用(GC-MS)技术对挥发油成分进行分析和鉴定,采用峰面积归一化法确定各成分的质量分数。结果从井冈山产凹叶厚朴的挥发油中共鉴定出75个化学成分,其中果实中鉴定出1-石竹烯、α-蒎烯等42个成分,质量分数占98.7%:花中鉴定出4-羟基-4-甲基-2-戊酮、茨烯等19个成分,质量分数占77.59%:干皮中鉴定出α-按叶油醇、四十四烷等24个成分,质量分数占77.92%;叶中鉴定出1-石竹烯、α-桉叶油醇等32个成分,质量分数占76.48%。1-石竹烯和四十三烷为4个部位共有。结论从凹叶厚朴挥发油成分角度,凹叶厚朴叶可替代厚朴皮入药,果实可以入药,花活性成分量很少,不建议入药。
