正文 廣東紫珠中咖啡酰基苯乙醇苷類化合物(3 / 3)

化合物8白色無定形粉末。ESI-MS m/z 811 [M-H]-。1H-NMR(CD3OD,400 MHz)δ:7.59(1H,d,J=16.0 Hz,H-7″″),7.04(1H,d,J=2.0 Hz,H-2″″),6.95(1H,dd,J=2.0,8.0 Hz,H-6″″),6.77(1H,d,J=8.0 Hz,H-5″″),6.67(1H,d,J=8.0 Hz,H-5),6.64(1H,d,J=2.0 Hz,H-2),6.52(1H,dd,J=2.0,8.0 Hz,H-6),6.26(1H,d,J=16.0 Hz,H-8″″),5.04(1H,t,J=8.8 Hz,H-4′),4.86(1H,dd,J=8.4,8.8 Hz,H-2′),4.79(1H,d,J=1.6 Hz,H-1″),4.62(1H,d,J=1.6 Hz,H-1),4.52(1H,d,J=8.4 Hz,H-1′),4.02(1H,t,J=9.2 Hz,H-3′),3.99(1H,m,H-8a),3.84(1H,dd,J=1.6,3.2 Hz,H-2″),3.77~3.72(1H,m,H-6′a),3.77~3.72(1H,m,H-5′),3.67(1H,m,H-8b),3.67(1H,dd,J=3.2,9.2 Hz,H-3),3.62(1H,dd,J=1.6,3.2 Hz,H-2),3.60(1H,m,H-5),3.53~3.48(1H,m,H-5″),3.53~3.48(1H,m,H-6′b),3.53~3.48(1H,m,H-3″),3.30(1H,t,J=9.2 Hz,H-4″),3.25(1H,t,J=9.2 Hz,H-4),1.98(3H,s,2′-COCH3),1.20(3H,d,J=6.4 Hz,H-6″),1.06(3H,d,J=6.4 Hz,H-6);13C-NMR(CD3OD,100 MHz)。以上數據與文獻[12]基本一致,化合物8鑒定為來江藤苷(brandioside)。

化合物9白色無定形粉末。ESI-MS m/z 755[M-H]-,與對照品對照確定化合物9為連翹酯苷B。

化合物10白色無定形粉末。ESI-MS m/z 769 [M-H]-,與對照品對照確定化合物10為金石蠶苷。

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Caffeoyl phenylethanoid glycosides from Callicarpa kwangtungensis

HU Xiao1*, LI Li1, YANG Yi-fang1, HUANG Chun-yue1, HUANG Guang-lei2

(1. State Key Lab of New Drug and Pharmaceutical Process, Shanghai Institute of Pharmaceutical

Industry, Shanghai 200040, China;

2. Pingxiang Institute for Food and Drug Control, Jiangxi 337055, China)

[Abstract] Phytochemical investigation on the EtOH extract from the aerial part of Callicarpa kwangtungensis led to the isolation and characterization of 10 caffeoyl phenylethanoid glycosides, 2′-acetylacteoside(1),tubuloside E(2),acteoside(3),tubuloside B(4),isoacteoside(5),alyssonoside(6),2′-acetylforsythoside B(7),brandioside(8),forsythoside B(9), and poliumoside(10). Compound 4 was isolated from the plants of Verbenaceae,and 6 was obtained from the Callicarpa genus,for the first time,while compounds 1,2,5 and 7 were firstly reported from the plant.

[Key words] Verbenaceae; Callicarpa kwangtungensis; caffeoyl phenylethanoid glycosides

doi:10.4268/cjcmm20140917