四、具体实施方式:
以下是本发明的实施例:
实例1:二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-硝基苯基)磷酸酯
化合物的结构式:
![]()
化合物的合成步骤:
1.在氮气保护下,温度为0℃时将N-半乳糖(对硝基苯甲醛)亚胺(0.324g,0.50mmol)和氢亚磷酸二乙酯(0.104g,0.75mmol)溶于5mL四氢呋喃(THF)中,配制成1.0mol/L的溶液;
2.向上述溶液中加入(0.142g,1.0mmol)的三氟化硼乙醚溶液(BF3·Et2O),室温搅拌4小时;
3.用薄层色谱(TLC)和核磁共振仪跟踪反应进程,当N-半乳糖胺全部反应完毕以后,加入25mL饱和碳酸氢钠溶液,水相用二氯甲烷萃取(3×25mL),有机相用无水硫酸钠干燥,过滤,旋转蒸馏除去溶剂和其他低沸点物质,用硅胶柱进行柱层析分离,洗脱剂为石油醚∶乙酸乙酯=2∶1,然后利用正丁烷与乙醚的混合溶剂重结晶即可得到二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-硝基苯基)磷酸酯产物,产率为88%。
波谱数据如下:
31P-NMR(121MHz,CDCl3):δ20.90;
1H-NMR(300MHz,CDCl3):δ1.11(s,9H,C(CH3)3),1.18(s,9H,C(CH3)3),1.25(s,9H,C(CH3)3),1.28(s,9H,C(CH3)3),1.21-1.30(m,6H,P(OCH2CH3)2),2.84(dd,J1,NH=12.0Hz,JP,NH=8.7Hz,1H,NH),3.68(dd,J5,6b=J5,6a=6.7Hz,1H,5-H),3.83(dd,J1,NH=12.1Hz,J1,2=8.8Hz,1H,1-H),3.93-4.12(m,6H,6a-H,6b-H,P(OCH2CH3)2),4.71(d,JCH,P=19.5Hz,1H,CH),5.03(dd,J2,3=10.2Hz,J3,4=3.0Hz,1H,3-H),5.14(dd,J1,2=8.9Hz,J2,3=10.0Hz,1H,2-H),5.35(d,J3,4=2.8Hz,1H,4-H),7.59-8.22(m,4H,Ph);
13C-NMR(75MHz,CDCl3):δ16.27(d,3JC,P=5.0Hz,P(OCH2CH3)),16.33(d,3JC,P=4.8Hz,P(OCH2CH3)),27.10,27.20,27.30(C(CH3)3),38.73,38.89,39.08(C(CH3)3),55.14(d,2JC,P=149.4Hz,CH),61.45(C-6),63.12(d,2JC,P=7.4Hz,P(OCH2CH3)),63.40(d,2JC,P=6.5Hz,P(OCH2CH3)),67.11,68.72,71.29,71.9(C-2,C-3,C-4,C-5),85.57(d,3JC,P=16.2Hz,C-1),123.47(d,JC,P=6.21Hz),129.69(d,JC,P=5.2Hz),142.48(d,JC,P=8.3Hz),147.79(d,JC,P=4.3Hz)(Ph),176.78,177.10,177.29,177.77(CO).
IR(KBr,cm-1):λ=3260.91(w),2977.22(s),1738.97(s),1481.37(m),1283.08(m),1151.18(s),1025.32(m),973.93(m);
ESI-MS:809.2([M+Na]+).
Anal.Calcd for C37H59N2O14P:C,56.57;H,7.51;N,3.50.Found:C,56.48;H,7.56;N,3.56.
实例2:二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-溴苯基)磷酸酯
化合物的结构式:
![]()
化合物的合成步骤:
1.在氮气保护下,温度为0℃时将N-半乳糖(对溴苯甲醛)亚胺(0.341g,0.5mmol)和氢亚磷酸二乙酯(0.104g,0.75mmol)溶于5mL四氢呋喃(THF)中,配制成1.0mol/L的溶液;
2.向上述溶液中加入(0.142g,1.0mmol)的三氟化硼乙醚溶液(BF3·Et2O),室温搅拌4小时;
3.用薄层色谱(TLC)和核磁共振仪跟踪反应进程,当N-半乳糖胺全部反应完毕以后,加入25mL饱和碳酸氢钠溶液,水相用二氯甲烷萃取(3×25mL),有机相用无水硫酸钠干燥,过滤,旋转蒸馏除去溶剂和其他低沸点物质,用硅胶柱进行柱层析分离,洗脱剂为石油醚∶乙酸乙酯=2∶1,然后利用正丁烷与乙醚的混合溶剂重结晶即可得到二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-溴苯基)磷酸酯产物,产率为85%。
波谱数据如下:
31P-NMR(121MHz,CDCl3):δ21.96;
1H-NMR(300MHz,CDCl3):δ1.10(s,9H,C(CH3)3),1.12(s,9H,C(CH3)3),1.23(s,9H,C(CH3)3),1.27(s,9H,C(CH3)3),1.23-1.27(m,6H,P(OCH2CH3)2),2.73(dd,J1,NH=12.4Hz,JP,NH=7.4Hz,1H,NH),3.67(dd,J5,6a=J5,6b=6.7Hz,1H,5-H),3.84(dd,J1,NH=12.4Hz,J1,2=8.7Hz,1H,1-H),3.93-4.12(m,6H,6a-H,6b-H,P(OCH2CH3)2),4.55(d,JCH,P=17.5Hz,1H,CH),5.03(dd,J2,3=10.2Hz,J3,4=3.1Hz,1H,3-H),5.12(dd,J1,2=8.7Hz,J2,3=10.2Hz,1H,2-H),5.34(d,J3,4=3.0Hz,1H,4-H),7.28-7.48(m,4H,Ph);
13C-NMR(75MHz,CDCl3):δ16.26(d,3JC,P=3.9Hz,P(OCH2CH3)),16.30(d,3JC,P=3.2Hz,P(OCH2CH3)),27.08,27.18,27.25(C(CH3)3),38.68,38.80,39.04(C(CH3)3),54.91(d,2JC,P=152.5Hz,CH),61.55(C-6),62.86(d,2JC,P=7.2Hz,P(OCH2CH3)),63.04(d,2JC,P=6.6Hz,P(OCH2CH3)),67.22,68.66,71.36,71.80(C-2,C-3,C-4,C-5),85.27(d,3JC,P=16.8Hz,C-1),122.12(d,JC,P=4.2Hz),130.67(d,JC,P=5.7Hz),131.45(d,JC,P=1.7Hz),133.36(d,JC,P=8.6Hz)(Ph),176.77,177.02,177.22,177.73(CO).
IR(KBr,cm-1):λ=3267.42(w),2976.67(s),1736.36(s),1481.72(m),1282.68(m),1151.22(s),1026.63(m),972.36(m);
ESI-MS:842.4([M+Na]+).
Anal.Calcd for C37H59BrNO12P:C,53.93;H,7.29;N,1.70.Found:C,54.15;H,7.25;N,1.71.
实例3:二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-氟苯基)磷酸酯
化合物的结构式:
![]()
化合物的合成步骤:
1.在氮气保护下,温度为0℃时将N-半乳糖(对氟苯甲醛)亚胺(0.311g,0.5mmol)和氢亚磷酸二乙酯(0.104g,0.75mmol)溶于5mL四氢呋喃(THF)中,配制成1.0mol/L的溶液;
2.向上述溶液中加入(0.142g,1.0mmol)的三氟化硼乙醚溶液(BF3·Et2O),室温搅拌6小时;
3.用薄层色谱(TLC)和核磁共振仪跟踪反应进程,当N-半乳糖胺全部反应完毕以后,加入25mL饱和碳酸氢钠溶液,水相用二氯甲烷萃取(3×25mL),有机相用无水硫酸钠干燥,过滤,旋转蒸馏除去溶剂和其他低沸点物质,用硅胶柱进行柱层析分离,洗脱剂为石油醚∶乙酸乙酯=2∶1,然后利用正丁烷与乙醚的混合溶剂重结晶即可得到二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-氟苯基)磷酸酯产物,产率为82%。
波谱数据如下:
31P-NMR(121MHz,CDCl3):δ22.51(d,J=5.1);
1H-NMR(300MHz,CDCl3):δ1.10(s,9H,C(CH3)3),1.18(s,9H,C(CH3)3),1.22(s,9H,C(CH3)3),1.27(s,9H,C(CH3)3),1.22-1.27(m,6H,P(OCH2CH3)2),2.73(dd,J1,NH=12.4Hz,JP,NH=7.1Hz,1H,NH),3.67(dd,J5,6a=J5,6b=6.7Hz,1H,5-H),3.83(dd,J1,NH=12.4Hz,J1,2=8.74Hz,1H,1-H),3.93-4.11(m,6H,6a-H,6b-H,P(OCH2CH3)2),4.56(d,JCH,P=17.5Hz,1H,CH),5.02(dd,J2,3=10.2Hz,J3,4=3.2Hz,1H,3-H),5.12(dd,J1,2=8.8Hz,J2,3=10.1Hz,1H,2-H),5.34(d,J3,4=3.0Hz,1H,4-H),7.00-7.42(m,4H,Ph);
13C-NMR(75MHz,CDCl3):,δ16.25(d,3JC,P=5.4Hz,P(OCH2CH3)2),27.05,27.15,27.20(C(CH3)3),38.65,38.77,39.02(C(CH3)3),54.70(d,2JC,P=153.7Hz,CH),61.55(C-6),62.78(d,2JC,P=7.4Hz,P(OCH2CH3)),62.93(d,2JC,P=6.7Hz,P(OCH2CH3)),67.23,68.63,71.36,71.76(C-2,C-3,C-4,C-5),85.24(d,3JC,P=16.8Hz,C-1),115.2(d,JC,P=21.2Hz),129.78(d,JC,P=8.7Hz),130.60(d,JC,P=6.8Hz),130.69(d,JC,P=7.1Hz)(Ph),176.75,177.02,177.23,177.71(CO).IR(KBr,cm-1):λ=3264.52(w),2980.39(s),1736.56(s),1481.36(m),1282.15(m),1149.51(s),1025.96(m),972.93(m);
ESI-MS:782.4([M+Na]+).
Anal.Calcd for C37H59FNO12P:C,58.57;H,7.73;N,1.82.Found:C,58.49;H,7.83;N,1.84.
实例4:二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](2-溴苯基)磷酸酯
化合物的结构式:
![]()
化合物的合成步骤:
1.在氮气保护下,温度为0℃时将N-半乳糖(2-溴苯甲醛)亚胺(0.341g,0.5mmol)和氢亚磷酸二乙酯(0.104g,0.75mmol)溶于5mL四氢呋喃(THF)中,配制成1.0mol/L的溶液;
2.向上述溶液中加入(0.142g,1.0mmol)的三氟化硼乙醚溶液(BF3·Et2O),室温搅拌6小时;
3.用薄层色谱(TLC)和核磁共振仪跟踪反应进程,当N-半乳糖胺全部反应完毕以后,加入25mL饱和碳酸氢钠溶液,水相用二氯甲烷萃取(3×25mL),有机相用无水硫酸钠干燥,过滤,旋转蒸馏除去溶剂和其他低沸点物质,用硅胶柱进行柱层析分离,洗脱剂为石油醚∶乙酸乙酯=2∶1,然后利用正丁烷与乙醚的混合溶剂重结晶即可得到二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](2-溴苯基)磷酸酯产物,产率为90%。
波谱数据如下:
31P-NMR(121MHz,CDCl3):δ22.23;
1H-NMR(300MHz,CDCl3):δ1.10(s,9H,C(CH3)3),1.17(s,9H,C(CH3)3),1.18(s,9H,C(CH3)3),1.27(s,9H,C(CH3)3),1.18-1.33(m,6H,P(OCH2CH3)2),2.81(dd,J1,NH=10.1Hz,JP,NH=7.4Hz,1H,NH),3.71-3.78(m,2H,1-H,5-H),3.94-4.18(m,6H,6a-H,6b-H,P(OCH2CH3)2),5.02(dd,J2,3=10.2Hz,J3,4=3.1Hz,1H,3-H),5.09(dd,J1,2=8.5Hz,J2,3=10.1Hz,1H,2-H),5.20(d,JCH,P=18.3Hz,1H,CH),5.36(d,J3,4=2.9Hz,1H,4-H),7.13-7.69(m,4H,Ph);
13C-NMR(75MHz,CDCl3):δ16.21(d,3JC,P=5.6Hz,P(OCH2CH3)),16.29(d,3JC,P=6.0Hz,P(OCH2CH3)),27.07,27.18,(C(CH3)3),38.65,38.72,39.02(C(CH3)3),53.84(d,2JC,P=153.3Hz,CH),61.00(C-6),62.98(d,2JC,P=7.0Hz,P(OCH2CH3)2),66.98,68.62,71.41,71.54(C-2,C-3,C-4,C-5),85.96(d,3JC,P=16.0Hz,C-1),125.37(d,JC,P=8.9Hz),127.23(d,JC,P=2.3Hz),129.46(d,JC,P=2.1Hz),131.19(d,JC,P=4.2Hz),132.76,134.48(d,JC,P=6.6Hz)(Ph),176.69,177.04,177.15,177.75(CO).
IR(KBr,cm-1):λ=3270.23(w),2979.56(s),1737.95(s),1480.74(m),1282.48(m),1149.52(s),1025.87(m),974.73(m);
ESI-MS:842.4([M+Na]+).
Anal.Calcd for C37H59BrNO12P:C,53.94;H,7.10;N,1.70.Found:C,54.15;H,7.25;N,1.71.
实例5:二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-氯苯基)磷酸酯化合物的结构式:
![]()
化合物的合成步骤:
1.在氮气保护下,温度为0℃时将N-半乳糖(4-氯苯甲醛)亚胺(0.319g,0.5mmol)和氢亚磷酸二乙酯(0.104g,0.75mmol)溶于5mL四氢呋喃(THF)中,配制成1.0mol/L的溶液;
2.向上述溶液中加入(0.142g,1.0mmol)的三氟化硼乙醚溶液(BF3·Et2O),室温搅拌6小时;
3.用薄层色谱(TLC)和核磁共振仪跟踪反应进程,当N-半乳糖胺全部反应完毕以后,加入25mL饱和碳酸氢钠溶液,水相用二氯甲烷萃取(3×25mL),有机相用无水硫酸钠干燥,过滤,旋转蒸馏除去溶剂和其他低沸点物质,用硅胶柱进行柱层析分离,洗脱剂为石油醚∶乙酸乙酯=2∶1,然后利用正丁烷与乙醚的混合溶剂重结晶即可得到二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-氯苯基)磷酸酯产物,产率为82%。
波谱数据如下:
31P-NMR(121MHz,CDCl3):δ22.17;
1H-NMR(300MHz,CDCl3):δ1.10(s,9H,C(CH3)3),1.18(s,9H,C(CH3)3),1.22(s,9H,C(CH3)3),1.27(s,9H,C(CH3)3),1.22-1.27(m,6H,P(OCH2CH3)2),2.73(dd,J1,NH=12.3Hz,JP,NH=7.3Hz,1H,NH),3.67(dd,J5,6a=J5,6b=6.7Hz,1H,5-H),3.83(dd,J1,NH=12.4Hz,J1,2=8.7Hz,1H,1-H),3.93-4.11(m,6H,6a-H,6b-H,P(OCH2CH3)2),4.56(d,JCH,P=17.5Hz,1H,CH),5.02(dd,J2,3=10.2Hz,J3,4=3.0Hz,1H,3-H),5.12(dd,J1,2=8.8Hz,J2,3=10.2Hz,1H,2-H),5.34(d,J3,4=2.8Hz,1H,4-H),7.30-7.38(m,4H,Ph);
13C-NMR(75MHz,CDCl3):δ16.28(d,3JC,P=4.5Hz,P(OCH2CH3)2),27.09,27.20,27.26(C(CH3)3),38.71,38.82,39.06(C(CH3)3),54.87(d,2JC,P=152.8Hz,CH),61.57(C-6),62.88(d,2JC,P=7.4Hz,P(OCH2CH3)),63.06(d,2JC,P=6.6Hz,P(OCH2CH3)),67.23,68.67,71.38,71.81(C-2,C-3,C-4,C-5),85.29(d,3JC,P=17.0Hz,C-1),128.53,130.36(d,JC,P=5.8Hz),132.80(d,JC,P=8.8Hz),134.01(d,JC,P=4.0Hz)(Ph),176.81,177.08,177.27,177.79(CO).
IR(KBr,cm-1):λ=3283.04(w),2976.72(s),1739.34(s),1481.29(m),1282.24(m),1151.45(s),1024.88(m),964.45(m);
ESI-MS:778.3([M+Na]+).
Anal.Calcd for C37H59ClNO12P:C,57.25;H,7.66;N,1.80.Found:C,57.11;H,7.56;N,1.84.
实例6:二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-甲基苯基)磷酸酯
化合物的结构式:
![]()
化合物的合成步骤:
1.在氮气保护下,温度为0℃时将N-半乳糖(4-甲基苯甲醛)亚胺(0.309g,0.5mmol)和氢亚磷酸二乙酯(0.104g,0.75mmol)溶于5mL四氢呋喃(THF)中,配制成1.0mol/L的溶液;
2.向上述溶液中加入(0.142g,1.0mmol)的三氟化硼乙醚溶液(BF3·Et2O),室温搅拌5小时;
3.用薄层色谱(TLC)和核磁共振仪跟踪反应进程,当N-半乳糖胺全部反应完毕以后,加入25mL饱和碳酸氢钠溶液,水相用二氯甲烷萃取(3×25mL),有机相用无水硫酸钠干燥,过滤,旋转蒸馏除去溶剂和其他低沸点物质,用硅胶柱进行柱层析分离,洗脱剂为石油醚∶乙酸乙酯=2∶1,然后利用正丁烷与乙醚的混合溶剂重结晶即可得到二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-甲基苯基)磷酸酯产物,产率为85%。
波谱数据如下:
31P-NMR(121MHz,CDCl3):δ23.12;
1H-NMR(300MHz,CDCl3):δ1.10(s,9H,C(CH3)3),1.18(s,9H,C(CH3)3),1.23(s,9H,C(CH3)3),1.27(s,9H,C(CH3)3),1.21-1.27(m,6H,P(OCH2CH3)2),2.36(d,JP,CH=1.8Hz,3H,PhCH3),2.69(dd,J1,NH=12.0Hz,JP,NH=7.0Hz,1H,NH),3.65(dd,J5,6b=J5,6a=6.7Hz,1H,5-H),3.85(dd,J1,NH=11.6Hz,J1,2=9.2Hz,1H,1-H),3.93-4.11(m,6H,6a-H,6b-H,P(OCH2CH3)2),4.55(d,JCH,P=16.5Hz,1H,CH),5.00(dd,J2,3=10.3Hz,J3,4=3.0Hz,1H,3-H),5.11(dd,J1,2=8.8Hz,J2,3=8.9Hz,1H,2-H),5.32(d,J3,4=2.9Hz,1H,4-H),7.12-7.31(m,4H,Ph);
13C-NMR(75MHz,CDCl3):δ16.33(d,3JC,P=2.6Hz,P(OCH2CH3)2),21.16(CH3),27.11,27.21,27.28(C(CH3)3),38.71,38.82,39.07(C(CH3)3),55.26(d,2JC,P=153.6Hz,CH),61.69(C-6),62.75(d,2JC,P=7.1Hz,P(OCH2CH3)),62.90(d,2JC,P=6.8Hz,P(OCH2CH3)),67.3568.68,71.47,71.71(C-2,C-3,C-4,C-5),85.24(d,3JC,P=17.4Hz,C-1),129.04,129.06(d,JC,P=6.0Hz),130.78(d,JC,P=8.7Hz),137.90(d,JC,P=3.6Hz)(Ph),176.88,177.13,177.30,177.84(CO).
IR(KBr,cm-1):λ=3281.18(w),2975.56(s),1738.81(s),1481.07(m),1282.09(m),1152.13(s),1026.27(m),957.45(m);
ESI-MS:756.1([M+1]+).
Anal.Calcd for C38H62NO12P:C,60.15;H,8.22;N,1.87.Found:C,60.38;H,8.72;N,1.85.
实例7:二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-甲氧基苯基)磷酸酯
化合物的结构式:
![]()
化合物的合成步骤:
1.在氮气保护下,温度为0℃时将N-半乳糖(4-甲氧基苯甲醛)亚胺(0.317g,0.5mmol)和氢亚磷酸二乙酯(0.104g,0.75mmol)溶于5mL四氢呋喃(THF)中,配制成1.0mol/L的溶液;
2.向上述溶液中加入(0.142g,1.0mmol)的三氟化硼乙醚溶液(BF3·Et2O),室温搅拌6小时;
3.用薄层色谱(TLC)和核磁共振仪跟踪反应进程,当N-半乳糖胺全部反应完毕以后,加入25mL饱和碳酸氢钠溶液,水相用二氯甲烷萃取(3×25mL),有机相用无水硫酸钠干燥,过滤,旋转蒸馏除去溶剂和其他低沸点物质,用硅胶柱进行柱层析分离,洗脱剂为石油醚∶乙酸乙酯=2∶1,然后利用正丁烷与乙醚的混合溶剂重结晶即可得到二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](4-甲氧基苯基)磷酸酯产物,产率为80%。
波谱数据如下:
31P-NMR(121MHz,CDCl3):δ=23.22;
1H-NMR(300MHz,CDCl3):δ1.10(s,9H,C(CH3)3),1.18(s,9H,C(CH3)3),1.23(s,9H,C(CH3)3),1.27(s,9H,C(CH3)3),1.23-1.27(m,6H,P(OCH2CH3)2),2.68(dd,J1,NH=12.2Hz,JP,NH=6.3Hz,1H,NH),3.65(dd,J5,6a=J5,6b=6.7Hz,1H,5-H),3.81-3.88(m,4H,1-H,OCH3),3.93-4.10(m,6H,6a-H,6b-H,P(OCH2CH3)2),4.52(d,JCH,P=16.1Hz,1H,CH),5.01(dd,J2,3=10.2Hz,J3,4=3.2Hz,1H,3-H),5.11(dd,J1,2=8.8Hz,J2,3=10.2Hz,1H,2-H),5.33(d,J3,4=3.0Hz,1H,4-H),6.85-7.34(m,4H,Ph);
13C-NMR(75MHz,CDCl3):δ=16.33(d,3JC,P=5.6Hz,P(OCH2CH3)2),27.10,27.20,27.27(C(CH3)3),38.7,38.81,39.06(C(CH3)3),54.85(d,2JC,P=155.0Hz,CH),55.24(OCH3),61.65(C-6),62.74(d,2JC,P=8.2Hz,P(OCH2CH3)),62.84(d,2JC,P=8.3Hz,P(OCH2CH3)),67.33,68.63,71.45,71.71(C-2,C-3,C-4,C-5),85.17(d,3JC,P=17.3Hz,C-1),113.79,125.59(d,JC,P=8.7Hz),130.31(d,JC,P=5.9Hz),159.54(d,JC,P=3.3Hz)(Ph),176.85,177.11,177.31,177.82(CO).
IR(KBr,cm-1):λ=3344.68(w),2980.12(s),1736.38(s),1481.39(m),1283.04(m),1148.68(s),1029.22(m),971.32(m);
ESI-MS:794.3([M+Na]+).
Anal.Calcd for C38H62NO13P:C,59.15;H,7.92;N,2.08.Found:C,59.13;H,8.10;N,1.81.
实例8:二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](苯基)磷酸酯
化合物的结构式:
![]()
化合物的合成步骤:
1.在氮气保护下,温度为0℃时将N-半乳糖(苯甲醛)亚胺(0.303g,0.5mmol)和氢亚磷酸二乙酯(0.104g,0.75mmol)溶于5mL四氢呋喃(THF)中,配制成1.0mol/L的溶液;
2.向上述溶液中加入(0.142g,1.0mmol)的三氟化硼乙醚溶液(BF3·Et2O),室温搅拌4小时;
3.用薄层色谱(TLC)和核磁共振仪跟踪反应进程,当N-半乳糖胺全部反应完毕以后,加入25mL饱和碳酸氢钠溶液,水相用二氯甲烷萃取(3×25mL),有机相用无水硫酸钠干燥,过滤,旋转蒸馏除去溶剂和其他低沸点物质,用硅胶柱进行柱层析分离,洗脱剂为石油醚∶乙酸乙酯=2∶1,然后利用正丁烷与乙醚的混合溶剂重结晶即可得到二乙基-α-[(2,3,4,6-四-O-特戊酰基-β-D-半乳糖基)氨基](苯基)磷酸酯产物,产率为87%。
波谱数据如下:
31P-NMR(121MHz,CDCl3):δ22.83;
1H-NMR(300MHz,CDCl3):δ1.10(s,9H,C(CH3)3),1.18(s,9H,C(CH3)3),1.23(s,9H,C(CH3)3),1.27(s,9H,C(CH3)3),1.21-1.27(m,6H,P(OCH2CH3)2),2.73(dd,J1,NH=12.2Hz,JP,NH=7.1Hz,1H,NH),3.65(dd,J5,6b=6.7Hz,J5,6a=6.7Hz,1H,5-H),3.86(dd,J1,NH=12.1Hz,J1,2=8.9Hz,1H,1-H),3.93-4.11(m,6H,6a-H,6b-H,P(OCH2CH3)2),4.71(d,JCH,P=17.1Hz,1H,CH),5.01(dd,J2,3=10.3Hz,J3,4=3.2Hz,1H,3-H),5.12(dd,J1,2=8.9Hz,J2,3=10.2Hz,1H,2-H),5.35(d,J3,4=3.1Hz,1H,4-H),7.32-7.42(m,5H,Ph);
13C-NMR(75MHz,CDCl3):δ16.28(d,3JC,P=5.7Hz,P(OCH2CH3)2),27.10,27.21,27.27(C(CH3)3),38.71,38.83,39.07(C(CH3)3),55.55(d,2JC,P=152.6Hz,CH),61.66(C-6),62.82(d,2JC,P=7.8Hz,P(OCH2CH3)),62.93(d,2JC,P=8.6Hz,P(OCH2CH3)),67.34,68.72,71.47,71.76(C-2,C-3,C-4,C-5),85.39(d,3JC,P=17.2Hz,C-1),128.14(d,JC,P=3.5Hz),128.29(d,JC,P=6.4Hz),129.15(d,JC,P=5.9Hz),134.07(d,JC,P=8.5Hz)(Ph),176.86,177.13,177.32,177.82(CO).
ESI-MS:764.3([M+Na]+).
Anal.Calcd for C37H60NO12P:C,59.90;H,8.15;N,1.89.Found:C,56.23;H,7.50;N,3.60.