CN105949162B - 咖啡酸衍生物在治疗白癜风中的应用 - Google Patents
咖啡酸衍生物在治疗白癜风中的应用 Download PDFInfo
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
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- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/60—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with aryl radicals attached in position 2
- C07D311/62—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with aryl radicals attached in position 2 with oxygen atoms directly attached in position 3, e.g. anthocyanidins
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- Chemical & Material Sciences (AREA)
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明提供了一种咖啡酸衍生物,通过将咖啡酸及衍生物与EGC以酯键连接起来制成前药,通过咖啡酸与EGC联合发挥活性,生物利用度高,对白癜风的治疗效果好。
Description
技术领域
本发明属于药物化学领域,具体是一种咖啡酸衍生物在制备治疗白癜风的药物中的应用。
背景技术
白癜风是一种色素缺失性皮肤病,其临床表现为局部或泛发性皮肤色素脱失。面颈部等暴露部位的白斑给患者造成了毁容性损害,严重的影响患者的身心健康。目前研究认为,该病是一种自身免疫性疾病,CD8+毒性T淋巴细胞对黑素细胞的特异性杀伤是造成表皮黑素细胞缺失的重要原因。另外白癜风皮损区局部存在过氧化氢等活性氧浓度的升高。高浓度过氧化氢除对黑素细胞有直接的杀伤作用,还能影响黑素细胞的抗原递呈,促进针对黑素细胞的自体免疫反应。因此抗氧化和抑制CD8+毒性T淋巴细胞活性是治疗白癜风的关键因素。
咖啡酸是一种天然的酚类化合物,是羟基肉桂酸的典型代表,它广泛存在于水果和蔬菜中,在咖啡豆、橄榄油、白葡萄酒、卷心菜中含量更高。咖啡酸及其衍生物不仅可以影响多种食物的稳定性、色泽、风味和营养价值等,还具有多方面的生物活性。咖啡酸及其衍生物的生物活性主要有抗菌、抗氧化、抗病毒、抗肿瘤,同时还具有一定的免疫调节和抗炎活性。近年来,咖啡酸及其衍生物的生物活性已引起了人们的广泛关注,不断发现其新的生物活性。为了研发新药物,人们对咖啡酸及其衍生物的化学结构改造进行了大量研究,取得了可喜成果。
表没食子儿茶素没食子酸酯(EGCG)是茶叶中分离得到的儿茶素类单体,茶多酚中重要的抗氧化物质。EGCG具有抗菌保鲜,抗肿瘤,抗病毒,延缓皮肤衰老等作用。EGCG广泛用于食品,医药以及日化产品中。EGCG具有抑制淋巴细胞增殖和迁移,保护皮肤黑色素细胞免受氧化损伤的功效,能用于临床治疗白癜风。EGCG本身的多羟基结构导致在环境下不稳定,羟基容易被氧化,导致抗氧化能力下降。同时EGCG水溶性很好,透过细胞膜的能力较差,生物利用度低,给应用带来了困难。
发明内容
为了探索和改善咖啡酸衍生物对白癜风的治疗效果,本发明通过将咖啡酸及衍生物与EGC以酯键连接起来制成前药,通过咖啡酸与EGC联合发挥活性,并进行脂溶性改造,来提高对白癜风的治疗效果。
本发明的技术方案如下:
通式化合物:
及其光学异构体或其药学上可接受的盐或溶剂合物,
其中:
R1,R2,R3,R4,R5为H或取代酰基;R6为苯环上单取代或多取代的羟基或酰氧基。
所述的化合物,进一步包括以下具体的化合物:
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(4-羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(3,4-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(3,4,5-三羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(2,4-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(3,5-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(2,3,4-三羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(2,5-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(2,6-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(4-乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(3,4-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃
-3-(E)-3-(3,4,5-三乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,4-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(3,5-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,3,4-三乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,5-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,6-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(4-丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(3,4-二丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(3,4,5-三丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,4-二丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(3,5-二丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3- (E)-3-(2,3,4-三丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,5-二丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,6-二丙酰氧基苯基)丙烯酸酯;
及其光学异构体或其药学上可接受的盐或溶剂合物。
所述的化合物在制备治疗白癜风的药物中的用途。
本发明的咖啡酸衍生物,通过咖啡酸与EGC联合发挥活性,生物利用度高,对白癜风的治疗效果好。
附图说明
图1是6.25μM浓度的实验结果图;
图2是12.5μM浓度的实验结果图;
图3是25μM浓度的实验结果图。
具体实施方式
实施例1EGC-咖啡酸衍生物的合成
1.1仪器与试剂
1H核磁共振谱采用Bruker AVII 500型超导核磁共振仪;质谱采用Agilent LCMS-2020。
所用表没食子儿茶素没食子酸酯(EGCG)是从南京广润生物有限公司购买,其他试剂均为国产分析纯试剂,使用前均未经进一步纯化。
1.2EGC-咖啡酸衍生物的合成路线:
1.3具体实施方法:
化合物2的合成:
将EGCG(20.0g,43.6mmol,1.0equiv)溶于DMF(100mL)中,加入咪唑(29.8g,438mmol,10equiv),冰浴下,缓慢加入叔丁基二甲基氯硅烷(65.8g,436mmol,10equiv)。室温反应12h,加水(50mL)淬灭,正己烷(200mL×3)萃取,水、饱和食盐水洗涤,合并有机相,无水硫酸钠干燥,抽滤,减压浓缩。经柱层析(乙酸乙酯:石油醚=1:100)得白色固体54.6g,收率: 91%。ESI-MS m/z 1372.0(M+H)+。
化合物3的合成:
将化合物2(13.0g,9.4mmol,1.0equiv)溶于THF(100mL)中,冰浴下,缓慢加入LiAlH4(0.72g,18.9mmol,2.0equiv),室温反应4h,饱和的Na2SO4淬灭,抽滤,乙醚(20mL×3)洗涤滤饼,合并滤液,饱和食盐水洗涤,有机相经无水硫酸钠干燥,减压浓缩,经柱层析(乙酸乙酯:石油醚=1:5)得白色固体6.6g,收率:80%。
1H NMR(500MHz,CDCl3)δ6.65(s,2H),6.15(d,J=2.3Hz,1H),6.01(d,J=2.3Hz,1H),4.88(s,1H),4.19(d,J=29.8Hz,1H),2.88(qd,J=16.9,3.9Hz,2H),1.04(d,J=1.6Hz,18H),1.02–1.00(m,9H),0.97(s,18H),0.29–0.26(m,6H),0.24(s,12H),0.23(s,6H),0.16(t,J=3.4Hz,6H).ESI-MS m/z 879(M+H)+。
化合物5-1的合成:
操作过程和化合物2的合成相同。只是将起始原料EGCG换成化合物4-1,得到白色固体,收率:75%。
1H NMR(500MHz,CDCl3)δ9.91(s,1H),7.98–7.65(m,2H),7.12–6.79(m,2H),1.02–1.01(m,9H),0.28–0.26(m,6H).ESI-MS m/z 237(M+H)+。
化合物5-2的合成:
操作过程和化合物5-1的合成相同。只是将起始原料4-1换成化合物4-2,得到白色固体,收率:82%。
1H NMR(500MHz,CDCl3)δ9.83(s,1H),7.39(q,J=1.9Hz,2H),6.97(d,J=7.9Hz,1H),1.02(d,J=1.6Hz,18H),0.31–0.19(m,12H).ESI-MS m/z 367(M+H)+。
化合物5-3的合成:
操作过程和化合物5-1的合成相同。只是将起始原料4-1换成化合物4-3,得到白色固体,收率:87%。
1H NMR(500MHz,CDCl3)δ9.75(s,1H),7.06(d,J=11.9Hz,2H),1.02–0.96(m,27H),0.15–0.07(m,18H).ESI-MS m/z 497(M+H)+。
化合物6-1的合成:
将化合物5-1(3g,12.7mmoL)溶于无水吡啶,加入丙二酸(2.6g,25.4mmoL),随后加入2滴哌啶,85℃反应6h,冷却至室温,搅拌过夜。1N盐酸(20mL×3)洗涤,饱和碳酸氢钠,饱和食盐水洗涤,合并有机层,无水硫酸钠干燥,抽滤,减压浓缩。经柱层析(DCM:MeOH=10:1)得白色固体1.5g,收率:37%。
1H NMR(500MHz,CDCl3)δ7.74(t,J=17.2Hz,1H),7.52–7.41(m,2H),6.92–6.84(m,2H),6.32(t,J=16.0Hz,1H),1.01(d,J=2.2Hz,9H),0.27–0.23(m,6H).ESI-MS m/z 279(M+H)+。
化合物6-2的合成:
操作过程和化合物6-1的合成相同。只是将起始原料5-1换成化合物5-2,得到白色固体2.2g,收率:51%。
1H NMR(500MHz,CDCl3)δ7.69(d,J=15.9Hz,1H),7.07(dd,J=7.1,1.9Hz,2H),6.92–6.81(m,1H),6.26(t,J=11.8Hz,1H),1.03–1.01(m,18H),0.25(d,J=4.5Hz,12H).ESI-MS m/z 409(M+H)+。
化合物6-3的合成:
操作过程和化合物6-1的合成相同。只是将起始原料5-1换成化合物5-3,得到白色固体1.7g,收率:43%。
1H NMR(500MHz,CDCl3)δ7.61(d,J=15.8Hz,1H),6.74(s,2H),6.21(d,J=15.8Hz,1H),1.07–0.91(m,27H),0.27–0.14(m,18H).ESI-MS m/z 539(M+H)+。
化合物7-1的合成:
将DCC(259mg,1.26mmoL)和DMAP(76mg,0.63mmoL)溶于无水DCM中,加入化合物3(550mg,0.63mmoL),体系冷却到0℃,将化合物6-1(350mg,1.26mmoL)缓慢加入。0℃搅拌1h,室温搅拌2h。抽滤,滤液用饱和碳酸氢钠、水、饱和食盐水洗涤,合并有机相,无水硫酸钠干燥,减压浓缩。经柱层析(乙酸乙酯:石油醚=1:100)得白色固体360mg,收率:40%。
1H NMR(500MHz,CDCl3)δ7.53–7.47(m,1H),7.35(t,J=5.6Hz,2H),6.84–6.80(m,2H),6.62(s,2H),6.23–6.17(m,2H),6.00(t,J=2.6Hz,1H),5.57–5.51(m,1H),5.02(s,1H),1.02–0.91(m,54H),0.25–0.09(m,36H).ESI-MS m/z 1137(M+H)+。
化合物7-2的合成:
操作过程和化合物6-1的合成相同。只是将起始原料6-1换成化合物6-2,得到白色固体500mg,收率:53%。
1H NMR(500MHz,CDCl3)δ7.43(d,J=15.9Hz,1H),7.01–6.88(m,2H),6.83–6.75(m,1H),6.66–6.57(m,2H),6.18(t,J=7.6Hz,1H),6.12(d,J=15.9Hz,1H),5.99(dd,J=7.9,2.3Hz,1H),5.55(s,1H),5.01(s,1H),2.95(ddd,J= 20.8,17.5,4.0Hz,2H),1.02–0.88(m,63H),0.30–0.06(m,42H).ESI-MS m/z1267(M+H)+。
化合物7-3的合成:
操作过程和化合物6-1的合成相同。只是将起始原料6-1换成化合物6-3,得到白色固体560mg,收率:65%。ESI-MS m/z 1397(M+H)+。
WSY1的合成:
将化合物7-1(100mg,0.088mmoL)溶于THF中,冰浴下,缓慢加入氟化氢-吡啶溶液(510uL)和吡啶(510uL),室温搅拌30min。加入1N HCl淬灭,乙酸乙酯萃取,饱和碳酸氢钠、水、饱和食盐水洗涤,合并有机相,无水硫酸钠干燥,减压浓缩。经柱层析(乙酸乙酯:石油醚=2:1)得白色固体51mg,收率:56%。
1H NMR(500MHz,MeOD)δ7.51(d,J=15.9Hz,1H),7.46–7.38(m,2H),6.82–6.71(m,2H),6.56–6.48(m,2H),6.27(d,J=15.9Hz,1H),5.97(dt,J=6.4,2.3Hz,2H),5.52–5.43(m,1H),4.94(d,J=29.2Hz,1H),2.98(dd,J=17.3,4.6Hz,1H),2.85(dd,J=17.4,2.5Hz,1H).ESI-MS m/z 453(M+H)+。
WSY2的合成:
操作过程和化合物WSY1的合成相同。只是将起始原料7-1换成化合物7-2,得到白色固体60mg,收率:78%。
1H NMR(500MHz,DMSO)δ9.59(s,1H),9.30(d,J=3.8Hz,1H),9.05(t,J=13.8Hz,2H),8.79(d,J=4.7Hz,2H),8.02(s,1H),7.34(d,J=15.8Hz,1H),7.04–6.91(m,2H),6.72(t,J=12.8Hz,1H),6.39(d,J=3.9Hz,2H),6.10(d,J =15.9Hz,1H),5.94(d,J=2.3Hz,1H),5.79(t,J=4.8Hz,1H),5.28(s,1H),4.94(s,1H),2.94–2.88(m,1H),2.68–2.61(m,1H).ESI-MS m/z 469(M+H)+。
WSY3的合成:
操作过程和化合物WSY1的合成相同。只是将起始原料7-1换成化合物7-3,得到白色固体110mg,收率:67%。
1H NMR(500MHz,MeOD)δ7.36(d,J=15.8Hz,1H),7.04–6.91(m,2H),6.55(d,J=29.3Hz,4H),6.16(d,J=15.8Hz,1H),5.52–5.43(m,1H),4.96(s,1H),2.98(dd,J=17.2,4.7Hz,1H),2.84(dd,J=17.4,2.4Hz,1H).ESI-MS m/z485(M+H)+。
WSY4的合成:
将化合物WSY1(20mg,0.044mmoL)溶于无水二氯甲烷中,加入DMAP(27mg,0.22mmoL),冰浴下,缓慢加入醋酸酐(36mg,0.35mmoL),室温搅拌2h。加入饱和碳酸氢钠淬灭,水、饱和食盐水洗涤,合并有机相,无水硫酸钠干燥。经柱层析(乙酸乙酯:石油醚=1:100)得白色固体30mg,收率:69%。
1H NMR(500MHz,CDCl3)δ7.55(dd,J=12.4,6.5Hz,3H),7.29–7.28(m,2H),7.11(d,J=8.6Hz,2H),6.73(d,J=2.2Hz,1H),6.61(d,J=2.2Hz,1H),6.32(d,J=16.0Hz,1H),5.55(s,1H),5.19(s,1H),3.01(d,J=20.2Hz,2H),2.41–2.15(m,18H).ESI-MS m/z 705(M+H)+。
WSY5的合成:
操作过程和化合物WSY4的合成相同。只是将起始原料WSY1换成化合物WSY2,得到白色固体35mg,收率:78%。
1H NMR(500MHz,CDCl3)δ7.53–7.48(m,1H),7.41(dd,J=8.5,2.0Hz,1H),7.37(d,J=2.0Hz,1H),7.28(s,2H),7.21(t,J=5.7Hz,1H),6.73(d,J=2.3 Hz,1H),6.61(dd,J=4.8,2.3Hz,1H),6.32(d,J=16.0Hz,1H),5.55(s,1H),5.18(s,1H),3.02(qd,J=17.8,3.5Hz,2H),2.36–2.20(m,21H).ESI-MS m/z763(M+H)+。
WSY6的合成:
操作过程和化合物WSY5的合成相同。只是将起始原料WSY1换成化合物WSY3,得到白色固体23mg,收率:81%。
1H NMR(500MHz,CDCl3)δ7.47(t,J=13.7Hz,1H),7.28(s,2H),7.27(s,2H),6.67(dd,J=54.2,2.2Hz,2H),6.31(d,J=16.0Hz,1H),5.55(s,1H),5.18(s,1H),3.09–2.92(m,2H),2.38–2.20(m,24H).ESI-MS m/z 821(M+H)+。
实施例2咖啡酸衍生物对黑色素细胞氧化损伤的保护作用的活性检测:
2.1仪器与试剂:
表没食子儿茶素没食子酸酯,H2O2:美国Sigma公司;
胎牛血清,0.25%胰酶-EDTA,PBS:美国Life Technologies公司;
RMPI-1640培养基:吉诺生物医药技术有限公司;
MTS细胞活性检测试剂盒:Promega公司;
CO2培养箱:美国Thermo scientific公司;
Spectramax 190酶标仪:美国Molecular Devices公司;
细胞培养板:美国corning公司;
2.2实验步骤
1)消化正常人原代培养的黑色素细胞,调整细胞浓度为1×105/mL,96孔板中每孔加100μL(每孔含104个黑素细胞),37℃、5%CO2培养24h后进行下一步试验;
2)分组:空白对照;H2O2阳性对照;6.25μM、12.5μM、25μM药物处理组;
3)用含不同浓度药物的培养基预处理黑素细胞,1h后,吸弃含药培养基;
4)每孔加含1mM H2O2的无血清培养基,处理1h后吸弃上清液;
5)细胞用培养基洗涤三次,加入新鲜培养基,继续培养24h;
6)每孔加入20μL MTS溶液,37℃孵育1-4h后用酶标仪在490nm波长处检测A值。设定空白对照组细胞活性为100%,计算各处理组细胞的相对活性。
2.3实验结果
从筛药模型的实验结果可以看出,WSY4,WSY5和WSY6对黑素细胞氧化损伤的保护作用较EGCG更强,而WSY1,WSY2和WSY3无显著差别。在单独H2O2处理组中,相对细胞活力是对照组的22.3±1.2%。在不同浓度(6.25μM,12.5μM和25μM)的EGCG药物处理组中,相对细胞活力分别达到28.1%,30.0%和50.5%。而在浓度6.25μM的药物处理组中,WSY4,WSY5和WSY6的相对细胞活力达到对照组的70%左右。在浓度12.5μM和25μM的药物处理组中,WSY4,WSY5和WSY6的相对细胞活力更是达到对照组的80%-90%。由此可以看出,WSY4,WSY5和WSY6在对黑素细胞的氧化损伤较EGCG有更显著的保护作用。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均包含在本发明的保护范围之内。
Claims (2)
1.通式化合物:
及其光学异构体或其药学上可接受的盐或水合物在制备治疗白癜风的药物中的用途,
其中:
R1,R2,R3,R4,R5为H或取代酰基;R6为苯环上单取代或多取代的羟基或酰氧基。
2.如权利要求1所述的化合物,进一步包括以下具体的化合物:
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(4-羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(3,4-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(3,4,5-三羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(2,4-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(3,5-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(2,3,4-三羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(2,5-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二羟基-2-(3,4,5-三羟基苯基)苯并二氢吡喃-3-(E)-3-(2,6-二羟基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(4-乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(3,4-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃
-3-(E)-3-(3,4,5-三乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,4-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(3,5-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-
(E)-3-(2,3,4-三乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,5-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二乙酰氧基-2-(3,4,5-三乙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,6-二乙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(4-丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(3,4-二丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-
(E)-3-(3,4,5-三丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,4-二丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(3,5-二丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-
(E)-3-(2,3,4-三丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,5-二丙酰氧基苯基)丙烯酸酯;
(2R,3R)-5,7-二丙酰氧基-2-(3,4,5-三丙酰氧基苯基)苯并二氢吡喃-3-(E)-3-(2,6-二丙酰氧基苯基)丙烯酸酯;
及其光学异构体或其药学上可接受的盐或水合物。
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