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      廬山石韋的化學(xué)成分研究

      2021-12-18 08:45:47何康范琳琳伍天苔申琳燕簡(jiǎn)潔鄒娟
      廣西植物 2021年11期
      關(guān)鍵詞:結(jié)構(gòu)鑒定分離純化化學(xué)成分

      何康 范琳琳 伍天苔 申琳燕 簡(jiǎn)潔 鄒娟

      摘 要:? 廬山石韋(Pyrrosia sheareri)為貴州少數(shù)民族常用藥材,但其化學(xué)成分研究較少。為更深入研究其化學(xué)成分,該文采用大孔吸附樹脂、硅膠色譜、葡聚糖凝膠LH-20色譜等分離純化技術(shù)對(duì)其乙醇提取物進(jìn)行分離純化,采用波譜數(shù)據(jù)分析及參考文獻(xiàn)比對(duì)等方法對(duì)分離得到的化合物進(jìn)行結(jié)構(gòu)鑒定。結(jié)果表明:從廬山石韋全草中分離得到11個(gè)化合物,分別鑒定為環(huán)阿爾廷-25-烯-3β,24-二醇(1)、3β-羥基齊墩果-12-烯-27-羧酸(2)、烏索酸(3)、7β-羥基谷甾醇(4)、7α-羥基谷甾醇(5)、β-谷甾醇(6)、3,7-二羥基-5-辛內(nèi)酯(7)、5,7,3′,5′-三羥基二氫黃酮(8)、香草酸(9)、咖啡酸甲酯(10)、8-羥基辛酸(11)。其中,化合物1和2均為首次從石韋屬植物中分離得到,化合物1、2、4、5、7、8、10、11均為首次從廬山石韋中分離得到。

      關(guān)鍵詞: 廬山石韋, 民族藥, 化學(xué)成分, 分離純化, 結(jié)構(gòu)鑒定

      中圖分類號(hào):? Q946

      文獻(xiàn)標(biāo)識(shí)碼:? A

      文章編號(hào):? 1000-3142(2021)11-1862-06

      Chemical constituents from Pyrrosia sheareri

      HE Kang1, FAN Linlin2, WU Tiantai1, Shen Linyan1, JIAN Jie1, ZOU Juan1*

      ( 1. Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China; 2. Guizhou

      Health Vocational College, Tongren 554309, Guizhou, China )

      Abstract:? Pyrrosia sheareri is widely used as folk herbs in minority areas of Guizhou Province. However, its chemical constituents are rarely reported. To further study the chemical constituents of P. sheareri, macroporous adsorption resins, silica-gel and sephadex LH-20 columns were employed to isolate and purify chemical constituents of P. sheareri. The structures of obtained compounds were identified by comprehensive spectroscopic analyses and confirmed by comparison of their spectral data with those in the literature. The results were as follows: Eleven compounds were isolated and elucidated respectively as cycloart-25-en-3β,24-diol (1), 3β-acetoxyolean-12-en-27-oic acid (2), ursolic acid (3), 7β-hydroxysitosterol (4), 7α-hydroxysitosterol (5), β-sitosterol (6), 3,7-dihydroxy-5-octanolide (7), 5,7,3′,5′-tetrahydroxy-flavanone (8), vanillic acid (9), caffeic acid methyl ester (10), 8-hydroxyoctanoic acid (11). Compounds 1, 2, 4, 5, 7, 8, 10 and 11 were isolated from this plant for the first time, and compounds 1 and 2 were isolated from this genus for the first time.

      Key words: Pyrrosia sheareri, ethnic medicine, chemical constituents, isolation and purification, structure identification

      水龍骨科(Polypodiaceae)石韋屬(Pyrrosia)植物全世界有100多種,中國(guó)現(xiàn)知有37種,貴州約有13種,分布廣泛且資源豐富(ECFC,1988),其中廬山石韋(Pyrrosia sheareri)是貴州石韋屬植物中資源最豐富的品種之一,在全省均有分布(貴州省中藥研究所,1992;邱德文和杜江,2005;潘爐臺(tái),2012)。石韋屬植物大多數(shù)種具有藥用價(jià)值,并在中國(guó)民族民間普遍作為利尿通淋、清熱止血藥使用,其療效在《本草綱目》和《神農(nóng)本草經(jīng)》等本草古籍中早有記載,其中廬山石韋既被《中國(guó)藥典》收載(國(guó)家藥典委員會(huì),2005),同時(shí)也為貴州少數(shù)民族常用藥,苗族稱其為“啊咳知”,用于治療感染及腹瀉(貴州省中藥研究所,1992),在仡佬族用于抗感染(趙俊華等,2003),以及在毛南族用于治療支氣管炎(孫濟(jì)平,2006)。

      現(xiàn)有研究表明,該屬植物中的化學(xué)成分主要為三萜類、黃酮類、口山酮類等(Hikinoet al., 1963;韓基善和王明時(shí),1984;陳麗君等,2011),從該屬植物中發(fā)現(xiàn)的化學(xué)成分較少,特別是對(duì)廬山石韋的化學(xué)成分研究只有零星報(bào)道,研究不夠深入(韓基善和王明時(shí),1984)。基于廬山石韋在貴州少數(shù)民族地區(qū)的廣泛應(yīng)用和確切療效,為更深入研究該民族藥的化學(xué)成分,闡明其物質(zhì)基礎(chǔ),本研究通過大孔吸附樹脂、硅膠、葡聚糖凝膠等分離技術(shù)對(duì)其全草的乙醇提取物進(jìn)行了分離純化,從中分離得到11個(gè)化合物(圖1),并經(jīng)波譜分析和文獻(xiàn)比對(duì)鑒定了化合物的結(jié)構(gòu)。所得化合物的類型包括三萜、甾體、黃酮、內(nèi)酯和酚酸等,其中化合物1和2均為首次從石韋屬植物中分離得到,化合物1、2、4、5、7、8、10、11均為首次從該種植物中分離得到(圖1)。本研究結(jié)果進(jìn)一步豐富了該民族藥的化學(xué)成分,為其后續(xù)的開發(fā)與利用奠定了科學(xué)基礎(chǔ)。

      1 儀器與材料

      AV-400型超導(dǎo)核磁共振儀(德國(guó)Bruker);JEOL 5973 MSD型質(zhì)譜儀(美國(guó)安捷倫公司);J209A-4型植物粉碎機(jī)(河南黃驊齊家務(wù)科學(xué)儀器廠);Buchi R215實(shí)驗(yàn)室規(guī)模旋轉(zhuǎn)蒸發(fā)儀(瑞士步琪實(shí)驗(yàn)室儀器公司);Sephadex LH-20葡聚糖凝膠LH-20(美國(guó)通用電氣醫(yī)療集團(tuán));GF254制備薄層板及200~300目柱色譜用硅膠(青島海洋化工有限公司);D101大孔樹脂(天津南開化工廠);顯色劑為10%硫酸-乙醇溶液,NMR測(cè)試溶劑為氘代試劑,其余試劑均由工業(yè)純經(jīng)重蒸處理后使用。

      實(shí)驗(yàn)藥材于2015年9月采自貴州遵義,原植物經(jīng)貴州中醫(yī)藥大學(xué)趙俊華教授鑒定為水龍骨科(Polypodiaceae)石韋屬(Pyrrosia)廬山石韋(Pyrrosia sheareri)。

      2 提取與分離

      取干燥廬山石韋全草28 kg,粉碎(60~80目)后用90%乙醇/水回流提取3次(每次1 h),合并提取液并過濾,減壓濃縮得浸膏(4.2 kg)。浸膏水溶后經(jīng)D101大孔樹脂柱層析,分別經(jīng)水、50%乙醇和90%乙醇梯度洗脫,得50%和90%乙醇部分。90%乙醇部分(182 g)經(jīng)硅膠柱層析,二氯甲烷/乙酸乙酯(100∶0→7∶3)梯度洗脫,得6個(gè)流分Fr. A90~F90。Fr. B90經(jīng)重結(jié)晶得到化合物6(4.3 g)。Fr. C90經(jīng)硅膠柱層析,石油醚/乙酸乙酯(100∶1→8∶2)梯度洗脫,再經(jīng)葡聚糖凝膠LH-20純化,得化合物1(19 mg)、2(10 mg)、3(28 mg)。Fr. D90經(jīng)硅膠柱層析,石油醚/乙酸乙酯(100∶1→7∶3)梯度洗脫,再經(jīng)葡聚糖凝膠LH-20純化,得化合物4和5(266 mg)。50%乙醇部分(1 187 g)經(jīng)硅膠柱層析,二氯甲烷/甲醇(95∶5→9∶1)梯度洗脫,得4個(gè)流分Fr. A50~E50。Fr. A50經(jīng)硅膠柱層析,二氯甲烷/乙酸乙酯(100∶1→8∶2)梯度洗脫,再用葡聚糖凝膠LH-20純化,得化合物7(16 mg)和9(23 mg)。Fr. B50經(jīng)硅膠柱層析,二氯甲烷/乙酸乙酯(8∶2)梯度洗脫,得化合物10(50 mg)。Fr. C50經(jīng)硅膠柱層析,二氯甲烷/乙酸乙酯(7∶3)梯度洗脫,得化合物8(138 mg)。Fr. D50經(jīng)硅膠柱層析,二氯甲烷/乙酸乙酯(8∶2)梯度洗脫,得化合物11(11 mg)。

      3 結(jié)構(gòu)鑒定

      化合物1 C30H50O2,白色粉末(氯仿)。ESI-MS m/z: 465.4 [M+Na]+。1H-NMR (400 MHz, CDCl3) δ: 4.96 (1H, brs, H-26a), 4.86 (1H, brs, H-26b), 4.04 (1H, t, J = 6.5 Hz, H-24), 3.33-3.29 (1H, m, H-3), 1.75 (3H, s, H-27), 0.99 (6H, s, H-18, 30), 0.91 (3H, s, H-28), 0.86 (3H, d, J = 5.2 Hz, H-21), 0.82 (3H, s, H-29), 0.58 (1H, d, J = 4.2 Hz, H-19a), 0.35 (1H, d, J = 4.2 Hz, H-19b)。13C-NMR (100 MHz, CDCl3) δ: 32.1 (C-1), 30.5 (C-2), 79.0 (C-3), 40.6 (C-4), 47.2 (C-5), 21.3 (C-6), 26.2 (C-7), 48.1 (C-8), 20.1 (C-9), 26.2 (C-10), 26.6 (C-11), 33.0 (C-12), 45.4 (C-13), 49.0 (C-14), 35.7 (C-15), 28.3 (C-16), 52.3 (C-17), 18.2 (C-18), 29.5 (C-19), 36.1 (C-20), 18.4 (C-21), 32.0 (C-22), 31.8 (C-23), 76.5 (C-24), 147.9 (C-25), 111.6 (C-26), 17.7 (C-27), 19.5 (C-28), 25.6 (C-29), 14.2 (C-30)。以上光譜數(shù)據(jù)與文獻(xiàn)(李宛霏等,2016)中cycloart-25-en-3β,24-diol基本一致,故將其鑒定為cycloart-25-en-3β,24-diol。

      化合物2 C32H50O4,白色粉末(氯仿)。ESI-MS m/z: 497.4 [M-H]-。1H-NMR (400 MHz, CDCl3) δ: 5.70 (1H, dd, J = 11.2, 2.5 Hz, H-12), 4.51 (1H, dd, J = 11.5, 4.8 Hz, H-3), 2.13 (1H, dd, J = 13.5, 5.8 Hz, H-9), 2.06 (3H, s, H-1′), 1.04 (3H, s, H-26), 1.00 (3H, s, H-25), 0.86 (3H, s, H-24), 0.85 (9H, s, H-23, 28, 30), 0.83 (3H, s, H-29), 0.80 (1H, t, J = 2.5 Hz, H-5)。13C-NMR (100 MHz, CDCl3) δ: 38.1 (C-1), 23.6 (C-2), 80.8 (C-3), 37.6 (C-4), 55.1 (C-5), 18.2 (C-6), 36.4 (C-7), 39.9 (C-8), 46.9 (C-9), 37.0 (C-10), 22.7 (C-11), 126.1 (C-12), 137.4 (C-13), 55.8 (C-14), 22.2 (C-15), 27.6 (C-16), 32.9 (C-17), 49.2 (C-18), 43.8 (C-19), 31.1 (C-20), 34.3 (C-21), 36.6 (C-22), 28.2 (C-23), 16.5 (C-24), 16.8 (C-25), 18.1 (C-26), 180.9 (C-27), 28.3 (C-28), 33.4 (C-29), 23.6 (C-30), 21.4 (C-1′), 171.3 (C-2′)。以上光譜數(shù)據(jù)與文獻(xiàn)(Sun et al., 2003)中3β-acetoxyolean-12-en-27-oic acid基本一致,故將其鑒定為3β-acetoxyolean-12-en-27-oic acid。

      化合物3 C30H48O3,白色粉末(氯仿)。1H-NMR (400 MHz, Pyridine-d5) δ: 0.92, 1.05, 1.08, 1.25, 1.27 (each 3H, s, 5×CH3), 1.03 (3H, d, J = 6.4 Hz, H-29), 0.98 (3H, d, J = 6.3 Hz, H-30), 3.48 (1H, dd, J = 10.6, 5.5 Hz, H-3), 5.52 (1H, brs, H-12)。13C-NMR (100 MHz, Pyridine-d5) δ: 39.9 (C-1), 28.6 (C-2), 78.6 (C-3), 39.6 (C-4), 56.3 (C-5), 19.3 (C-6), 30.5 (C-7), 34.1 (C-8), 48.5 (C-9), 37.9 (C-10), 17.9 (C-11), 126.1 (C-12), 139.8 (C-13), 43.0 (C-14), 29.3 (C-15), 25.4 (C-16), 40.4 (C-17), 54.0 (C-18), 40.0 (C-19), 39.9 (C-20), 31.6 (C-21), 37.8 (C-22), 29.2 (C-23), 17.1 (C-24), 16.2 (C-25), 18.0 (C-26), 24.4 (C-27), 180.4 (C-28), 24.1 (C-29), 21.9 (C-30)。以上光譜數(shù)據(jù)與文獻(xiàn)(林曉瑩等,2017)中ursolic acid基本一致,故將其鑒定為ursolic acid。

      化合物4 C29H50O2,白色粉末(氯仿)。ESI-MS m/z: 431.4? [M+H]+。1H-NMR (400 MHz, CDCl3) δ: 5.35 (1H, brs, H-6), 3.54 (1H, m, H-3), 3.85 (1H, m, H-7), 1.02 (3H, s, H-19), 0.95 (3H, d, J = 6.7 Hz, H-21), 0.86 (3H, t, J = 7.2 Hz, H-29), 0.84 (3H, d, J = 6.8 Hz, H-26), 0.82 (3H, d, J= 6.8 Hz, H-27), 0.72 (3H, s, H-18)。13C-NMR (100 MHz, CDCl3) δ: 37.0 (C-1), 31.6 (C-2), 71.4 (C-3), 41.7 (C-4), 143.5 (C-5), 125.1 (C-6), 73.4 (C-7), 40.9 (C-8), 48.3 (C-9), 36.5 (C-10), 21.1 (C-11), 39.6 (C-12), 43.0 (C-13), 55.4 (C-14), 26.4 (C-15), 28.6 (C-16), 56.0 (C-17), 11.8 (C-18), 19.2 (C-19), 36.1 (C-20), 19.0 (C-21), 34.0 (C-22), 25.9 (C-23), 45.8 (C-24), 29.1 (C-25), 19.8 (C-26), 19.8 (C-27), 23.1 (C-28), 12.0 (C-29)。以上光譜數(shù)據(jù)與文獻(xiàn)(徐靜等,2009)中7β-羥基谷甾醇(7β-hydroxysitosterol)基本一致,故將其鑒定為7β-羥基谷甾醇(7β-hydroxysitosterol)。

      化合物5 C29H50O2,白色粉末(氯仿)。ESI-MS m/z: 431.4? [M+H]+。1H-NMR (400 MHz, CDCl3) δ: 5.63 (1H, d, J = 4.6 Hz, H-6), 3.56 (1H, m, H-3), 3.86 (1H, m, H-7), 1.02 (3H, s, H-19), 0.96 (3H, d, J = 6.6 Hz, H-21), 0.87 (3H, t, J = 7.1 Hz, H-29), 0.84 (3H, d, J = 6.8 Hz, H-26), 0.84 (3H, d, J = 6.8 Hz, H-27), 0.72 (3H, s, H-18)。13C-NMR (100 MHz, CDCl3) δ: 37.0 (C-1), 31.4 (C-2), 71.3 (C-3), 42.0 (C-4), 146.3 (C-5), 123.9 (C-6), 69.8(C-7), 37.5 (C-8), 42.3 (C-9), 37.4 (C-10), 20.7 (C-11), 39.2 (C-12), 42.2 (C-13), 49.4 (C-14), 24.3 (C-15), 28.3 (C-16), 55.7 (C-17), 18.3 (C-18), 11.6 (C-19), 36.4 (C-20), 18.8 (C-21), 33.9 (C-22), 25.9 (C-23), 45.8 (C-24), 28.6 (C-25), 19.8 (C-26), 18.8 (C-27), 23.1 (C-28), 11.8 (C-29)。以上光譜數(shù)據(jù)與文獻(xiàn)(傅淋然等,2015)中7α-羥基谷甾醇(7α-hydroxysitosterol)基本一致,故將其鑒定為7α-羥基谷甾醇(7α-hydroxysitosterol)。

      化合物6 C29H50O,白色粉末(氯仿)。用顯色劑10%硫酸/乙醇溶液顯色,在薄層板上為紫紅色單一斑點(diǎn)。在紫外波長(zhǎng)254 nm和365 nm下觀察均沒有熒光。將樣品與β-谷甾醇標(biāo)準(zhǔn)品作TCL對(duì)照,用三種展開劑(石油醚/二氯甲烷、石油醚/乙酸乙酯、石油醚/丙酮)展開,跟β-谷甾醇標(biāo)準(zhǔn)品的Rf值一致,有且只有一個(gè)斑點(diǎn),斑點(diǎn)顏色也相同,因此確定該化合物為β-谷甾醇。

      化合物7 C8H14O4,白色粉末(氯仿)。用顯色劑10%硫酸/乙醇溶液顯色,在薄層板上為棕色單一斑點(diǎn)。ESI-MS m/z: 175.1? [M+H]+。1H-NMR (400 MHz, CDCl3) δ: 4.87 (1H, brd, J = 4.1 Hz, H-5), 4.34 (1H, dd, J = 5.8, 3.9 Hz, H-3), 3.89 (1H, m, H-7), 2.81 (1H, d, J = 12.7 Hz, H-2a), 2.72 (1H, dd, J =12.7 Hz, 3.5 Hz, H-2b), 2.01 (1H, d, J = 9.8 Hz, H-4a), 1.97 (1H, d, J = 9.8 Hz, H-4b), 1.88 (1H, d, J = 9.2 Hz, H-6a), 1.53 (1H, brd, J = 9.2 Hz, H-6b),1.21 (3H, d, J = 6.1 Hz, H-8)。13C-NMR (100 MHz, CDCl3) δ: 169.9 (C-1), 36.6 (C-2), 66.1 (C-3), 29.7 (C-4), 73.3 (C-5), 38.7 (C-6), 62.1 (C-7), 21.5 (C-8)。以上光譜數(shù)據(jù)與文獻(xiàn)(Li et al., 2016)中3,7-dihydroxy-5-octanolide基本一致,故將其鑒定為3,7-dihydroxy-5-octanolide。

      化合物8 C15H12O6,白色粉末(氯仿)。用顯色劑10%硫酸/乙醇溶液顯色,在薄層板上為棕色單一斑點(diǎn)。ESI-MS m/z: 287.1? [M-H]-。1H-NMR (400 MHz, Pyridine-d5) δ: 6.44 (1H, d, J = 2.2 Hz, H-4′), 6.34 (1H, d, J = 2.0 Hz, H-2′, 6′), 5.47 (1H, d, J = 2.0 Hz, H-8), 5.45 (1H, d, J = 2.0 Hz, H-6), 5.47 (1H, dd, J = 12.7, 3.0 Hz, H-2), 3.29 (1H, dd, J = 17.0, 12.8 Hz, H-3a), 2.89 (1H, dd, J = 17.0, 3.1 Hz, H-3b)。13C-NMR (100 MHz, Pyridine-d5) δ: 80.4 (C-2), 44.0 (C-3), 197.6 (C-4), 165.6 (C-5), 97.1 (C-6), 168.8 (C-7), 96.6 (C-8), 165.4 (C-9), 103.4 (C-10), 119.2 (C-1′), 117.0 (C-2′), 148.3 (C-3′), 131.2 (C-4′), 147.9 (C-5′), 115.8 (C-6′)。以上光譜數(shù)據(jù)與文獻(xiàn)(Zheng et al., 2008)中5,7,3′,5′-tetrahydroxy-flavanone基本一致,故將其鑒定為5,7,3′,5′-tetrahydroxy-flavanone。

      化合物9 C8H8O4,淡黃色粉末(甲醇)。用顯色劑10%硫酸/乙醇溶液顯色,在薄層板上不顯色,用碘顯色呈橘黃色斑點(diǎn)。ESI-MS m/z: 167.0? [M-H]-。1H-NMR (400 MHz, CD3OD) δ: 3.82 (3H, s, -OCH3), 7.43-7.40 (2H, m, H-2, 6), 6.80 (1H, d, J = 8.1 Hz, H-5)。13C-NMR (100 MHz, CD3OD) δ: 122.6 (C-1), 115.8 (C-2), 151.7 (C-3), 146.2 (C-4), 117.4 (C-5), 123.6 (C-6), 168.8 (-COOH), 52.5 (-OCH3)。以上光譜數(shù)據(jù)與文獻(xiàn)(曹雷雷等,2015)中vanilic acid基本一致,故將其鑒定為vanilic acid。

      化合物10 C10H10O4,白色粉末(甲醇)。用顯色劑10%硫酸/乙醇溶液顯色,在薄層板上為淡棕色斑點(diǎn)。ESI-MS m/z: 193.0? [M-H]-。1H-NMR (400 MHz, CD3OD) δ: 7.53 (1H, d, J = 15.8 Hz, H-8), 6.24 (1H, d, J = 15.9 Hz, H-7), 7.04 (1H, d, J = 2.2 Hz, H-2), 6.93 (1H, dd, J = 8.2, 2.1 Hz, H-6), 6.78 (1H, d, J = 8.2 Hz, H-5), 3.74 (3H, s, -OCH3)。13C-NMR (100 MHz, CD3OD) δ: 127.7 (C-1), 115.1 (C-2), 146.7 (C-3), 149.5 (C-4), 116.4 (C-5), 122.9 (C-6), 146.9 (C-7), 114.8 (C-8), 52.0 (-OCH3), 169.7 (C=O)。以上光譜數(shù)據(jù)與文獻(xiàn)(Toshihiro et al., 1999)中caffeic acid methyl ester基本一致,故將其鑒定為caffeic acid methyl ester。

      化合物11 C8H16O3,白色粉末(甲醇)。用顯色劑10%硫酸/乙醇溶液顯色,在薄層板上為紫紅色單一斑點(diǎn)。ESI-MS m/z: 159.1 [M-H]-。1H-NMR (400 MHz, CD3OD) δ: 3.53 (2H, t, J = 6.7 Hz, H-8), 2.27 (2H, t, J = 7.4 Hz, H-2), 1.59 (2H, d, J = 7.1 Hz, H-3), 1.54-1.49 (2H, m, H-7), 1.37-1.32 (6H, m, H-4, 5, 6)。13C-NMR (100 MHz, CD3OD) δ: 177.8 (C-1), 35.0 (C-2), 26.1 (C-3), 30.6 (C-4, 5), 26.9 (C-6), 33.7 (C-7), 63.0 (C-8)。以上光譜數(shù)據(jù)與文獻(xiàn)(Tani et al., 2009)中8-hydroxyoctanoic acid基本一致,故將其鑒定為8-hydroxyoctanoic acid。

      4 討論與結(jié)論

      本研究采用大孔樹脂吸附法對(duì)廬山石韋的乙醇提取物進(jìn)行極性分段,再用硅膠柱色譜、葡聚糖凝膠LH-20柱色譜等分離技術(shù)對(duì)其化學(xué)成分進(jìn)行了分離純化,從中分離得到11個(gè)化合物,包括3個(gè)三萜、3個(gè)甾體、1個(gè)黃酮和4個(gè)其他類化合物。其中,化合物1和2均為首次從石韋屬植物中分離得到,化合物1、2、4、5、7、8、10、11均為首次從該種植物中分離得到。基于該藥利尿通淋、清熱止血的功效以及在貴州少數(shù)民族地區(qū)治療感染、腹瀉和支氣管炎的用藥經(jīng)驗(yàn)和療效,對(duì)所得化合物進(jìn)行文獻(xiàn)調(diào)研,發(fā)現(xiàn)部分化合物具有抗菌和抗炎活性?;衔?具有抗菌生物活性,同時(shí)能改善泌尿系統(tǒng)感染患者的臨床癥狀,并對(duì)D-半乳糖誘導(dǎo)的炎癥反應(yīng)具有保護(hù)效應(yīng),還能抑制額前皮質(zhì)NF-κBp65的核轉(zhuǎn)位,減弱大腦的炎癥反應(yīng),顯示抗炎活性(董小英等,2017);化合物6具有類似于氫化可的松的抗炎作用,也可提高脂多糖(LPS)誘導(dǎo)的J774A1巨噬細(xì)胞抗炎因子IL-10的活性,減小趨化因子和促炎因子活性,同時(shí)增強(qiáng)酪氨酸磷酸酶(SHP-1)活性,抑制核轉(zhuǎn)錄因子(NF-κB)遷移(劉威良等,2019);化合物9具有抗菌活性,并能抑制感染性結(jié)石形成,對(duì)大鼠膀胱感染性結(jié)石有顯著治療作用(李承勇等,2019)。以上報(bào)道與該藥在藥典中的功效記載以及在貴州少數(shù)民族地區(qū)的用法和療效相吻合。這些化合物的發(fā)現(xiàn)為其臨床應(yīng)用提供了理論依據(jù),也為該民族藥的開發(fā)利用奠定了科學(xué)基礎(chǔ)。

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      (責(zé)任編輯 李 莉)

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