一种桑白皮活性成分Morusin衍生物及其应用与制备方法_3

文档序号:9803330阅读:来源:国知局
g后用10 mL 乙醇溶解,室温搅拌十五分钟,随后取0.162 mL ( 2 mmol)丙稀酮于烧瓶中,室温搅拌2 h。 后处理:加入5%盐酸稀释反应液,再分别用30、20、20 mL乙酸乙酯萃取水相,饱和食盐水洗 涤合并好的油层,无水硫酸钠干燥后旋干,柱层析(PE : EA = 10 : 1)分离得到产物3e, 产率85%; HRMS (ESI-TOF) m/z: Calcd. for Ci5Hi7BrNa〇4 [M+Na] + : 363.0207; Found: 363.0204.
实验操作:取0.38 g(3 mmol)3e于25 mL圆底烧瓶中,再加入0.126 g ( 1 mmol)间苯 三酚,随后置于家用微波炉中,于640 W下加热8 min,随后取出降至室温,加入乙酸乙酯溶 解,过滤取乙酸乙酯层,旋干,经过硅胶柱柱层析(PE : EA = 5: 1)分离得到产物4e,产率 57%; 匪R ( CDCh,400 ΜΗζ) δ: 2.11 (s,3H),2.57 (d,J = 8.1 Hz, 2H),2.70 (d, J = 8.2 Hz, 2H), 6.30 (s, 2H), 7.27 (s, 1H), 7.37-7.47 (m, 3H), 7.72 (m, 1H), 12.77 (s, 1H); 13C-NMR ( CDC13, 100 MHz) δ: 19.8, 29.6, 41.7, 93.9, 99.3, 105.1, 119.8, 122.6, 127.6, 130.64, 131.8, 133.2, 133.5, 157.9, 161.4, 162.2, 162.5, 182.1, 208.2; HRMS (ESI-TOF) m/z: Calcd. for CigHisBrNaOs [M+Na]+: 425.0001; Found: 425.0001.
实验操作:取0.358 g(l mmol)4e和0.114 mL 3-甲基丙稀醛于25 mL圆底烧瓶中,再加 入0.147 g无水碳酸钠后置于微波炉中,于640 W下加热13 min。随后取出降至室温,加入乙 酸乙酯溶解,过滤取乙酸乙酯层,旋干,柱层析(PE : EA = 9: 1)分离得到产物5e,淡黄色 液体,产率 15%; 匪R ( CDC13,400 ΜΗζ) δ: 12.81 (s,1H),7.74-7.71 (m,1H), 7.47-7.44 (m, 1H), 7.43-7.39 (m, 2H), 6.59-6.53 (m, 1H), 6.29 (s, 1H), 5.51- 5.45 (m, 1H), 2.75-2.65 (m, 2H), 2.59- 2.52 (m, 2H), 2.08 (s, 3H), 1.26 (s, 6H); 13C-匪R ( CDCI3, 100 MHz) δ: 207.7, 182.3, 161.7, 161.1, 159.6, 152.1, 133.6, 133.3, 132.3, 131.8, 130.9, 130.8, 128.8, 127.6, 127.1, 122.7, 120.0, 114.7, 105.1, 101.0, 100.1, 94.8, 78.1, 77.3, 77.0, 76.8, 41.6, 30.6, 29.7, 29.7, 28.4, 28.1, 13.7; HRMS (ESI-TOF) m/z: Calcd. for C24H2iBrNa〇5 [M+Na]+: 491.0470; Found: 491.0470.
实验操作:称取468 mg (1 mmol ) 5e于25 mL THF中,冰浴至体系降至零度以下,加入 过量甲基碘化镁(3.5 eq),保持冰浴下搅拌2 h,加水淬灭反应,加入乙酸乙酯萃取,干燥 乙酸乙酯层,旋干。在乙酸乙酯与石油醚(1 : 5)体系下硅胶柱层析分离,得到淡黄色油状 液体6e-l,产率75%; h-NMR ( CDCh,400 ΜΗζ) δ: 12.83 (s,1H),7.74 (d,J = 8.2 Hz, 1H), 7.50-7.45 (m, 1H), 7.44-7.40 (m, 2H), 6.58 (d, J = 10.0 Hz, 1H), 6.29 (s, 1H), 5.49 (d, J = 10.0 Hz, 1H), 2.52-2.42 (m, 1H), 2.34-2.25 (m, 1H), 1.74-1.63 (m, 2H), 1.58 (dd, J = 11.2, 5.3 Hz, 1H), 1.45 (d, J = 13.7 Hz, 6H), 1.12 (d, J = 4.9 Hz, 6H); 13C-NMR ( CDCb, 100 MHz) δ: 182.3, 161.7, 160.8, 159.6, 133.7, 133.3, 131.7, 130.9, 130.7, 128.8, 127.5, 127.0, 122.7, 121.6, 114.7, 105.1, 101.0, 100.0, 78.1, 77.3, 77.0, 76.7, 70.4, 42.1, 30.5, 28.9, 28.8, 28.4, 28.1, 13.7; HRMS (ESI-TOF) m/z: Calcd. for C25H25BrNa〇5 [M+ Na]+: 507.0783; Found: 507.0785.
实验操作:称取468 mg (1.0 mmol ) 5e于25 mL THF中,冰浴至体系降至零度以下,加 入过量对氟苯溴化镁(3.5 eq),保持冰浴下搅拌3 h,加水淬灭反应,加入乙酸乙酯萃取, 干燥乙酸乙酯层,旋干。在乙酸乙酯与石油醚(1 : 5)体系下硅胶柱层析分离,得到淡黄色 油状液体 6e-2,产率71%;1!1-匪1?(0)(:13,400 10^)3:12.88-12.56 (111,1!〇,7.72-7.66 (m, 1H), 7.44-7.36 (m, 2H), 7.33-7.28 (m, 1H), 7.27-7.22 (m, 2H), 6.94-6.81 (m, 2H), 6.60-6.52 (m, 1H), 6.28 (s, 1H), 5.54- 5.44 (m, 1H), 2.05 (s, 2H), 2·(Π -1.93 (m, 2H), 1.78 (s, 1H), 1.49-1.41 (m, 9H); 13C-NMR ( CDC13, 100 MHz) δ: 182.4, 162.4, 162.3, 161.6, 160.9, 160.8, 160.4, 160.3, 159.7, 152.1, 142.9, 133.5, 133.4, 133.3, 131.6, 130.6, 127.5, 127.4, 127.1, 126.5, 126.5, 126.4, 126.3, 122.7, 122.6, 121.4, 121.3, 114.7, 114.7, 114.7, 114.6, 114.5, 105.0, 101.0, 100.1, 78.1, 77.3, 77.0, 76.8, 73.9, 73.8, 42.4, 42.1, 31.1, 30.7, 29.7, 28.3, 28.1, 28.0, 14.2; HRMS (ESI-TOF) m/z: Calcd. for C3〇H26BrFNa〇5 [M+Na]+: 587.0845; Found: 587.0845.
实验操作:称取468 mg (1.0 mmol ) 5e于25 mL THF中,冰浴至体系降至零度以下,加 入过量对氟苯溴化镁(3.5 eq),保持冰浴下搅拌3 h,加水淬灭反应,加入乙酸乙酯萃取, 干燥乙酸乙酯层,旋干。在乙酸乙酯与石油醚(1 : 5)体系下硅胶柱层析分离,得到淡黄色 油状液体 6e-3,产率67%;1!1-匪1?(0)(:13,400 10^)3:12.86-12.53 (111,1!〇,7.72-7.65 (m, 1H), 7.42-7.17 (m, 7H), 7.16-7.09 (m, 1H), 6.60-6.52 (m, 1H), 6.27 (s, 1H), 5.51-5.45 (m, 1H), 2.99 (s, 1H), 2.42-2.13 (m, 2H), 2.08-1.98 (m, 2H), 1.47-1.42 (m, 9H); 13C-匪R ( CDC13, 100 MHz) δ: 182.4,161.6,160.8, 159.6, 152.1, 147.3, 133.5, 133.4, 133.3, 132.3, 131.6, 130.9, 130.6, 128.8, 128.0, 127.9, 127.5, 127.4, 127.0, 126.3, 126.2, 124.7, 124.6, 122.6, 121.5, 121.4, 114.7, 105.0, 101.0, 100.0, 78.1, 77.3, 77.0, 76.8, 74.1, 42.2, 41.9, 30.9, 30.7, 30.5, 29.7, 28.3, 28.1, 13.7; HRMS (ESI-TOF) m/z: Calcd. for C3〇H27BrNa〇5 [M+Na]+: 569.0939; Found: 569.0941.
实验操作:称取468 mg (1.0 mmol ) 5e于25 mL甲醇中,冰浴搅拌下,加入过量硼氢化 钠(3.0 eq),室温搅拌3 h,用稀HC1中和过剩的硼氢化钠,加入乙酸乙酯萃取,干燥乙酸乙 酯层,旋干。在乙酸乙酯与石油醚(1 : 4)体系下硅胶柱层析分离,得到淡黄色油状液体7e, 产率83%; h-NMR ( CDCI3,400 MHz) δ: 12.78-12.60 (m,1H),7.78-7.68 (m,1H), 7.50-7.45 (m, 1H), 7.44-7.38 (m, 2H), 6.64- 6.52 (m, 1H), 6.30 (s, 1H), 5.53- 5.46 (m, 1H), 3.70-3.59 (m, 1H), 3.11-2.98 (m, 1H), 2.71-2.58 (m, 1H), 2.40-2.29 (m, 1H), 2.26
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