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      薄荷地上部分的非揮發(fā)性化學(xué)成分研究

      2016-02-01 23:28:18陳智坤梁呈元任冰如李維林
      關(guān)鍵詞:柱層析正丁醇薄荷

      陳智坤, 梁呈元, 任冰如, 陳 劍, 于 盱, 呂 寒, 劉 艷, 李維林,①

      〔1. 陜西省西安植物園 陜西省植物研究所, 陜西 西安 710061; 2. 江蘇省中國(guó)科學(xué)院植物研究所(南京中山植物園), 江蘇 南京 210014〕

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      薄荷地上部分的非揮發(fā)性化學(xué)成分研究

      陳智坤1,2, 梁呈元2, 任冰如2, 陳劍2, 于盱2, 呂寒2, 劉艷2, 李維林2,①

      〔1. 陜西省西安植物園 陜西省植物研究所, 陜西 西安 710061; 2. 江蘇省中國(guó)科學(xué)院植物研究所(南京中山植物園), 江蘇 南京 210014〕

      薄荷屬(MenthaLinn.)植物薄荷(MenthahaplocalyxBriq.)的干燥地上部分為常用中藥材[1],其主要藥用成分為揮發(fā)油[2-3],其非揮發(fā)性成分也具有重要的藥理作用。為詳細(xì)了解薄荷的非揮發(fā)性成分,作者對(duì)薄荷地上部分乙醇提取物的乙酸乙酯和正丁醇萃取物的組成成分進(jìn)行了分析。

      1 材料和方法

      1.1材料

      供試薄荷的干燥地上部分于2011年9月購(gòu)自安徽亳州藥材市場(chǎng),產(chǎn)地為安徽太和縣肖口鎮(zhèn),由梁呈元副研究員鑒定。

      1.2方法

      稱(chēng)取干燥地上部分25 kg,按料液比(m/V)1∶6加入體積分?jǐn)?shù)70%乙醇,常溫浸提15 d,提取2次,合并提取液并濃縮得浸膏,用蒸餾水配成混懸液,依次用石油醚、乙酸乙酯和正丁醇萃取,獲得乙酸乙酯萃取物610 g和正丁醇萃取物500 g。

      取乙酸乙酯萃取物200 g,經(jīng)硅膠柱層析(石油醚-乙酸乙酯)得到4個(gè)組分,經(jīng)重結(jié)晶、硅膠柱層析(石油醚-乙酸乙酯)和Sephadex LH-20柱層析(甲醇-水)得到化合物M1至M5。取正丁醇萃取物200 g,用D101大孔樹(shù)脂柱層析(體積分?jǐn)?shù)50%、 70%、 90%和100%乙醇)得到4個(gè)組分, 經(jīng)Sephadex LH-20柱層析(三氯甲烷-甲醇)和制備液相(三氯甲烷-甲醇)分離得到化合物M6至M16。 采用理化分析及MS、1H-NMR和13C-NMR分析,并與文獻(xiàn)比對(duì),確定各化合物結(jié)構(gòu)。

      2 實(shí)驗(yàn)結(jié)果

      M1: 白色針狀結(jié)晶; mp: 139 ℃~140 ℃; Liebermann- Burchard反應(yīng)陽(yáng)性。與β-谷甾醇對(duì)照品共同薄層層析,Rf值和顯色一致,混合熔點(diǎn)不下降,鑒定為β-谷甾醇(β-sitosterol)。

      M2:白色粉末;mp:287 ℃~288 ℃;Liebermann-Burchard和Molish反應(yīng)陽(yáng)性。與胡蘿卜苷對(duì)照品共同薄層層析,Rf值和顯色一致,混合熔點(diǎn)不下降,鑒定為胡蘿卜苷(daucosterol)。

      M3:黃色粉末;ESI-MSm/z:307.01[M+Na]+,C16H12O5。1H-NMR(DMSO,500 MHz)δ:12.91(1H,s,5-OH),10.82(1H,s,H-7),8.03(2H,dd,J=7.0,2.0 Hz,H-2′,6′),7.11(2H,dd,J=7.0,2.0 Hz,H-3′,5′),6.84(1H,s,H-3),6.51(1H,d,J=2.0 Hz,H-8),6.21(1H,d,J=2.0 Hz,H-6),3.86(3H,s,4′-OCH3)。13C-NMR(DMSO,125 MHz)δ:181.70(C-4),164.15(C-7),163.24(C-2),162.25(C-9),161.39(C-4′),157.28(C-5),128.24(C-2′,6′),122.79(C-1′),114.52(C-3′,5′), 103.71(C-10), 103.49(C-3), 98.83(C-6), 93.96(C-8),55.49(4′-OCH3)。參照文獻(xiàn)[4]鑒定為刺槐素 (acacetin)。

      M4:白色粉末;ESI-MSm/z:457.28[M+H]+, C30H48O3。1H-NMR(DMSO,500 MHz)δ:5.17(1H,t,J=3.5 Hz,H-12),3.46(1H,dd,J=7.0,14.0 Hz,H-3),2.76(1H,dd,J=3.5,8.5 Hz, H-5)。13C-NMR(DMSO, 125 MHz)δ: 179.06(C-28),144.15(C-13), 121.89(C-12), 77.37(C-3), 55.17(C-5), 48.88(C-9),47.45(C-17,19),41.63(C-14),41.18(C-18),39.00(C-8),38.67(C-4),38.41(C-1),36.90(C-10),33.63(C-21), 33.05(C-22), 32.74(C-7), 32.44(C-29), 30.63(C-20), 28.43(C-23), 27.51(C-15), 27.15(C-2),25.80(C-27),23.55(C-11),23.26(C-16),23.91(C-30),18.60(C-6),17.35(C-26),16.40(C-24),15.30(C-25)。參照文獻(xiàn)[5]鑒定為齊墩果酸(oleanolic acid)。

      M5:黃色粉末;ESI-MSm/z:302.04[M+H]+, C15H10O7。1H-NMR(DMSO,500 MHz)δ:12.47(1H,s,5-OH),10.76(1H,s,H-7),9.39(1H,s,H-3),8.52(2H,d,J=8.5 Hz,H-3′,4′),7.64(1H,d,J=2.0 Hz,H-2′),7.52(1H,d,J=2.0 Hz,H-6′),6.78(1H,s,H),6.42(1H,s,H), 6.21(1H,s,H);13C-NMR(DMSO,125 MHz)δ: 174.81(C-4), 162.53(C-7), 160.04(C-5),156.31(C-9),147.52(C-4′),146.82(C-2),144.83(C-3′),135.48(C-3),121.91(C-1′),119.83(C-6′),115.54(C-5′),115.24(C-2′),104.39(C-10),98.31(C-6),92.9(C-8)。參照文獻(xiàn)[6]鑒定為槲皮素(quercetin)。

      M6: 白色針狀結(jié)晶, ESI-MSm/z: 155.12 [M+H]+, C7H6O4。1H-NMR(D2O, 500 MHz)δ:7.42(1H,d,J=2.0 Hz,H-2),7.39(1H,d,J=8.0 Hz,H-6),7.37(1H,d,J=8.0 Hz, H-5)。13C-NMR(D2O, 125 MHz)δ: 177.03(C-7), 150.03(C-3), 146.03(C-4),131.30(C-1),124.24(C-6),119.63(C-5),118.11(C-2)。參照文獻(xiàn)[7]鑒定為原兒茶酸(protocatechuic acid)。

      M7:白色粉末;mp:272 ℃~273 ℃;ESI-MSm/z:457.37[M+H]+,C30H48O3。13C-NMR(PYR,125 MHz)δ:179.88(C-28),139.28(C-13),125.66(C-12),78.14(C-3), 55.84(C-5),53.57(C-18),48.06(C-9,17),42.52(C-14),39.99(C-8),39.51(C-19),39.42(C-4),39.39(C-1),39.10(C-20),37.46(C-10), 37.30(C-22), 33.60(C-7), 31.09(C-21), 28.83(C-23), 28.71(C-15), 28.15(C-2), 24.93(C-16), 23.93(C-27), 23.65(C-11), 21.43(C-30), 18.80(C-6),17.54(C-29),17.47(C-26),16.59(C-25),15.70(C-24)。參照文獻(xiàn)[8]鑒定為熊果酸(ursolic acid)。

      M8:白色粉末;ESI-MSm/z:495.34[M+Na]+,C30H48O4。13C-NMR(PYR,125 MHz)δ:180.77(C-28),139.66(C-13),127.83(C-12), 78.09(C-3), 72.51(C-19), 55.65(C-5),54.37(C-18), 48.11(C-17), 47.53(C-9), 42.14(C-20), 41.83(C-14),40.09(C-8),39.11(C-4),38.80(C-1),38.27(C-22), 37.08(C-10), 33.33(C-7), 29.06(C-15), 28.56(C-23), 27.67(C-2), 26.90(C-21), 26.68(C-29), 26.13(C-16), 24.48(C-27), 23.78(C-11), 18.69(C-6), 16.99(C-26),16.57(C-24),16.30(C-30),15.33(C-25)。參照文獻(xiàn)[9]鑒定為坡模酸(pomolic acid)。

      M9:黃色粉末;mp:328 ℃~330 ℃;ESI-MSm/z:323.05[M+Na]+,C16H12O6。1H-NMR(DMSO,500 MHz)δ:12.92(1H,s,5-OH), 7.49(1H,d,J=7.0 Hz,H-6′), 7.41(1H,s, H-2′), 7.04(1H,d,J=8.0 Hz,H-5′),6.69(1H,s,H-3),6.44(1H,s,H-8),6.19(1H,s,H-6),3.84(3H,s,4′-OCH3),其中7位和3′位上的羥基H不出峰。13C-NMR(DMSO,150 MHz)δ:181.64(C-4),164.29(C-7),163.47(C-2),161.48(C-9),157.32(C-5),151.09(C-4′),146.80(C-3′),123.05(C-6′),118.62(C-1′),112.95(C-2′),112.06(C-5′),103.75(C-3),103.49(C-10),98.90(C-6),93.91(C-8),55.70(4′-OCH3)。參照文獻(xiàn)[10]鑒定為香葉木素(diosmetin)。

      M10:白色粉末;ESI-MSm/z:473.17[M+H]+,C30H48O4。13C-NMR(PYR,125 MHz)δ:179.87(C-28),139.25(C-13),125.56(C-12), 79.31(C-3), 66.06(C-2), 53.52(C-18), 48.68(C-5),48.03(C-9),47.89(C-17),42.96(C-1),42.54(C-14), 40.16(C-19), 39.40(C-20), 38.79(C-8), 38.59(C-4),37.44(C-10),33.47(C-22),33.19(C-7),31.06(C-21),29.46(C-23),28.61(C-15),24.88(C-11),23.82(C-24),23.66(C-16),22.28(C-27),21.36(C-30),18.42(C-6),17.48(C-26,29),16.72(C-25)。參照文獻(xiàn)[11]鑒定為2α,3α-二羥基-12-烯-28-烏羧酸(2α,3α-dihydroxy-urs-12-en-28-oic acid)。

      M11:白色粉末;ESI-MSm/z:473.48[M+H]+,C30H48O4。13C-NMR(PYR,125 MHz)δ:144.9(C-13),122.31(C-12),83.80(C-3), 68.57(C-2), 55.90(C-5), 48.18(C-8,9),47.74(C-1),46.54(C-17,19),42.23(C-18),42.05(C-14),39.84(C-4),38.56(C-10),34.29(C-21),33.21(C-7,22,29),30.91(C-20),29.32(C-23),28.30(C-15),26.13(C-27),23.93(C-16),23.80(C-11,30),18.86(C-6),17.68(C-25,26),16.86(C-24),C-28(羧基碳)未出峰。參照文獻(xiàn)[12]鑒定為2α-羥基齊墩果酸(2α-hydroxydeanolic acid)。

      M12:淡黃色粉末;ESI-MSm/z:181.16[M+H]+,C9H8O4。1H-NMR(CH3OH-d4,500 MHz)δ:6.68(1H,s,H-7), 6.67(1H, s, H-2),6.66(1H,s,H-6),6.48(1H,s,H-5),6.47(1H,s,H-8);13C-NMR(CH3OH-d4,125 MHz)δ:176.20(C-9),145.87(C-4),144.28(C-3),132.94(C-7),119.87(C-1,8),116.03(C-5,6),115.98(C-2)。參照文獻(xiàn)[13]鑒定為咖啡酸(caffeic acid)。

      M13:白色粉末;ESI-MSm/z:361.37[M+H]+,C18H16O8。1H-NMR(D2O,400 MHz)δ: 7.55(1H,d,J=16.0 Hz,H-7), 7.05(1H,d,J=2.0 Hz,H-2), 6.95(1H, dd,J=2.0, 8.4 Hz, H-6),6.78(1H,dd,J=8.0 Hz,H-5),6.75(1H,dd,J=2.0 Hz,H-2′),6.70(1H,dd,J=8.4 Hz,H-5′),6.61(1H,dd,J=2.0,8.0 Hz,H-6′),6.27(1H,d,J=16.0 Hz,H-8),5.19(1H,dd,J=4.4,8.4 Hz,H-8′),3.10(1H,dd,J=4.4,14.0 Hz,H-7a′), 3.01(1H,dd,J=8.4, 14.4 Hz,H-7b′)。13C-NMR(D2O,100 MHz)δ:173.62(C-9′),168.59(C-9), 149.86(C-4),147.88(C-3),146.99(C-7),146.28(C-3′),145.40(C-4′),129.37(C-1′),127.77(C-1),123.31(C-6),121.94(C-6′),117.70(C-2′),116.62(C-5),116.42(C-5′),115.33(C-2),114.51(C-8),74.72(C-8′), 38.03(C-7′)。參照文獻(xiàn)[14]鑒定為迷迭香酸(rosmarinic acid)。

      M14:黃色粉末;ESI-MSm/z:447.21[M+H]+,C22H22O10。1H-NMR(DMSO,500 MHz)δ:13.48(1H,s,5-OH),7.83(2H,dd,J=2.0,8.0 Hz,H-2′,6′),7.28(1H,d,J=2.0 Hz,H-8),6.88(2H,dd,J=2.0,8.0 Hz,H-3′,5′), 6.65(1H,s,H-3), 6.28(1H,d,J=2.0 Hz,H-6),5.74(1H,d,J=8.0 Hz,H-1″),4.64(1H,d,J=8.0 Hz,H-2″),4.35-4.26(4H,m,H-3″,4″,5″,6″),4.19(1H,m,H-6″),3.83(3H,s, 4′-OCH3)。13C-NMR(DMSO,125 MHz)δ:182.85(C-4),164.44(C-2),164.21(C-7),163.12(C-5), 162.64(C-4′),157.88(C-9),128.53(C-2′,6′),123.13(C-1′),114.89(C-3′,5′),106.63(C-10),104.82(C-3),101.89(C-1″),100.89(C-6),95.43(C-8),79.27(C-5″), 78.51(C-3″), 74.84(C-2″), 71.21(C-4″), 63.51(C-6″),55.66(4′-OCH3)。參照文獻(xiàn)[15]鑒定為刺槐素-7-O-β-D-葡萄糖苷(acacetin-7-O-β-D-glucopyranoside)。

      M15:黃色粉末;ESI-MSm/z:285.04[M+H]+,C15H10O6。1H-NMR(DMSO,500 MHz)δ:7.41(2H,d,J=6.0 Hz,H-2′,6′),6.90(1H,d,J=8.5 Hz,H-5′), 6.66(1H,s,H-3), 6.46(1H,s,H-8),6.19(1H,s,H-6)。13C-NMR(DMSO,500 MHz)δ:181.61(C-4),164.15(C-7),163.87(C-2),161.43(C-5),157.24(C-9),149.68(C-3′),145.72(C-4′),121.47(C-1′),118.92(C-6′),116.01(C-2′),113.36(C-5′),103.65(C-10),102.82(C-3),98.81(C-6),93.82(C-8)。參照文獻(xiàn)[16]鑒定為木犀草素(luteolin)。

      M16:黃色粉末;ESI-MSm/z:449.20[M+H]+,C21H20O11。1H-NMR(DMSO,500 MHz)δ:12.99(1H,s,5-OH),7.45(2H,d,J=6.5 Hz,H-2′,6′),6.92(1H,d,J=2.0 Hz, H-5′),6.78(2H,dd,J=2.0 Hz,H-6,8), 6.45(1H,s,H-3), 5.36(1H,s,H-1″),4.60(1H,d,J=7.0 Hz,H-2″),3.49-3.29(4H,m,H-3″,4″,5″,6″),3.17(1H,s,H-6″)。13C-NMR(DMSO,500 MHz)δ:181.77(C-4),164.55(C-2),163.01(C-7),161.13(C-5),156.88(C-9),149.93(C-4′),145.69(C-3′),121.53(C-1′),118.98(C-6′),115.86(C-5′),113.76(C-2′),105.47(C-10),103.27(C-3),99.86(C-6),99.46(C-8),94.93(C-1″),77.13(C-5″), 76.48(C-3″), 73.10(C-2″), 69.69(C-4″),60.70(C-6″)。參照文獻(xiàn)[17]鑒定為木犀草素-7-O-β-D-葡萄糖苷(luteolin-7-O-β-D-glucopyranoside)。

      化合物M1和M2為甾體類(lèi);M3、M5、M9、M14、M15和M16為黃酮類(lèi);M4、M7、M8、M10和M11為三萜酸類(lèi);M6、M12和M13為酚酸類(lèi)。其中,M6、M15和M16首次從薄荷中獲得,而M8、M10、M11和M14首次從薄荷屬中獲得。

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      [7]盧海龍, 楊明, 林生, 等. 紅波羅花醋酸乙酯部位化學(xué)成分研究[J]. 中國(guó)中藥雜志, 2009, 34(14): 1799-1801.

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      [9]HATA C, KAKUNO M, YOSHIKAWA K, et al. Triterpenoid saponins of aquifoliaceous plants. Ⅴ. Ilexosides ⅩⅤ-ⅩⅠⅩ from the barks ofIlexcrenataThunb.[J]. Chemical and Pharmaceutical Bulletin, 1992, 40(8): 1990-1992.

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      (責(zé)任編輯: 郭嚴(yán)冬)

      Research on involatile chemical constituents in above-ground part ofMenthahaplocalyx

      CHEN Zhikun1,2, LIANG Chengyuan2, REN Bingru2, CHEN Jian2, YU Xu2, LYU Han2, LIU Yan2, LI Weilin2,①

      (1.Xi’an Botanical Garden, Institute of Botany of Shaanxi Province, Xi’an 710061, China; 2. Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China),J.PlantResour. &Environ., 2016, 25(3): 115-117

      Sixteen compounds were isolated from extracts of ethyl acetate and butyl alcohol of ethanol extracts of above-ground part ofMenthahaplocalyxBriq. They areβ-sitosterol (M1), daucosterol (M2), acacetin (M3), oleanolic acid (M4), quercetin (M5), protocatechuic acid (M6), ursolic acid (M7), pomolic acid (M8), diosmetin (M9), 2α,3α-dihydroxy-urs-12-en-28-oic acid (M10), 2α-hydroxydeanolic acid (M11), caffeic acid (M12), rosmarinic acid (M13), acacetin-7-O-β-D-glucopyranoside (M14), luteolin (M15) and luteolin-7-O-β-D-glucopyranoside (M16). In which, M6, M15 and M16 are isolated firstly fromM.haplocalyx, and M8, M10, M11 and M14 are isolated firstly fromMenthaLinn.

      薄荷; 地上部分; 乙醇提取物; 非揮發(fā)性成分; 結(jié)構(gòu)鑒定

      MenthahaplocalyxBriq.; above-ground part; ethanol extracts; involatile constituents; structure identification

      2015-10-22

      “十二五”國(guó)家科技支撐計(jì)劃項(xiàng)目(2011BAI04B06)

      陳智坤(1987—),男,陜西洋縣人,碩士,研究實(shí)習(xí)員,主要從事植物資源研究與開(kāi)發(fā)方面的工作。

      E-mail: lwlcnbg@mail.cnbg.net

      Q946; R284.1

      A

      1674-7895(2016)03-0115-03

      10.3969/j.issn.1674-7895.2016.03.15

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