蓝桉果实正丁醇部位化学成分

Pham Thi Anh; 李君彦; 张宝宝; 汪豪

doi:10.11665/j.issn.1000-5048.20180406

蓝桉果实正丁醇部位化学成分

Chemical constituents from the n-butanol portions of the fruits of Eucalyptus globulus

摘要

摘要: 采用硅胶、制备型HPLC等柱色谱方法对蓝桉(Eucalyptus globulus)果实的化学成分进行分离纯化，通过NMR，MS等波谱技术鉴定了12个化合物，分别为:鞣花酸( 1 )，3-O-甲基鞣花酸4′-O-α-L-吡喃鼠李糖苷( 2 )，valoneic acid dilactone( 3 )，8-β-C-葡萄糖基-5，7-二羟基-2-甲基色原酮( 4 )，6-β-C-葡萄糖基-5，7-二羟基-2-甲基色原酮( 5 )，8-β-C-glucopyranosyl-5，7-dihydroxy-2-isobutylchromone( 6 )，8-β-C-glucopyranosyl-5，7-dihydroxy-2-isopropylchromone( 7 )，quercetin 3-O-β-D-glucopyranoside( 8 )，quercetin 3-O-β-D-glucuronide-6″-methylester( 9 )，(+)-lyoniresin-4-yl-β-D-glucopyranoside( 10 )，cypellocarpins A( 11 )，eucaglobulin 1( 12 )。化合物 3~10 为首次从该植物中分离得到。

Abstract: Phytochemical studies on the fruits of Eucalyptus globulus led to the isolation of twelve compounds. The structures of these compounds were elucidated as: ellagic acid( 1 ), 3-O-methylellagic acid 4′-O-α-rhamnopyranoside( 2 ), valoneic acid dilactone( 3 ), isobiflorin( 4 ), biflorin( 5 ), 8-β-C-glucopyranosyl-5, 7-dihydroxy-2-isobutylchromone( 6 ), 8-β-C-glucopyranosyl-5, 7-dihydroxy-2-isopropylchromone( 7 ), quercetin 3-O-β-D-glucopyranoside( 8 ), quercetin 3-O-β-D-glucuronide-6″-methyl ester( 9 ), (+)-lyoniresin-4-yl β-D-glucopyranoside( 10 ), cypellocarpins A( 11 ), and eucaglobulin 1( 12 ), by means of spectroscopic analyses(ESI-MS, ¹H NMR and ¹³C NMR). Compounds 3-10 were isolated from this plant for the first time.

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