A nutritional fortifier N-(1-(phenylacetyl)-L-prolyl)glycine ethyl ester(4)was successfully synthesized through two synthetic schemes and characterized by IR,^1H-NMR,^13C-NMR,elemental analysis and X-ray single-crysta...A nutritional fortifier N-(1-(phenylacetyl)-L-prolyl)glycine ethyl ester(4)was successfully synthesized through two synthetic schemes and characterized by IR,^1H-NMR,^13C-NMR,elemental analysis and X-ray single-crystal diffraction.The intermediate N-phenylacetyl-L-proline(2)was synthesized by the solid-liquid reaction of L-proline and phenylacetyl chloride directly.Compound 2(C13 H15 NO3,Mr=233.26)belongs to the orthorhombic system,space group P212121 with a=8.9468(3),b=9.3190(3),c=14.0453(4)A,V=1171.03(6)A^3,Z=4,Dc=1.323 g/cm^3,μ=0.773 mm^-1,F(000)=496.0,the final R=0.0313 and wR=0.0797 for all data.Compound 4(C17 H22 N2 O4,Mr=318.36)is of orthorhombic system,space group P212121 with a=6.5831(2),b=8.5536(2),c=28.9138(9)A,V=1628.11(8)A^3,Z=4,Dc=1.299 g/cm3,μ=0.763 mm-1,F(000)=680.0,the final R=0.0353 and wR=0.0816 for all data.展开更多
研究了抗血吸虫药物吡喹酮的合成新方法。以甘氨酸乙酯盐酸盐和溴代乙醛缩二乙醇为原料,经N-烃化、N-酰化和Pictet-Spengler缩合三步反应合成出了吡喹酮。探讨了催化剂用量、缚酸剂、反应温度和酸催化剂对反应的影响。三步反应总收率为...研究了抗血吸虫药物吡喹酮的合成新方法。以甘氨酸乙酯盐酸盐和溴代乙醛缩二乙醇为原料,经N-烃化、N-酰化和Pictet-Spengler缩合三步反应合成出了吡喹酮。探讨了催化剂用量、缚酸剂、反应温度和酸催化剂对反应的影响。三步反应总收率为32%。产物结构经IR、1 H NMR、13C NMR、MS和HRMS确证。该方法反应条件温和,成本低,环境污染少,具有一定的工业化前景。展开更多
文摘A nutritional fortifier N-(1-(phenylacetyl)-L-prolyl)glycine ethyl ester(4)was successfully synthesized through two synthetic schemes and characterized by IR,^1H-NMR,^13C-NMR,elemental analysis and X-ray single-crystal diffraction.The intermediate N-phenylacetyl-L-proline(2)was synthesized by the solid-liquid reaction of L-proline and phenylacetyl chloride directly.Compound 2(C13 H15 NO3,Mr=233.26)belongs to the orthorhombic system,space group P212121 with a=8.9468(3),b=9.3190(3),c=14.0453(4)A,V=1171.03(6)A^3,Z=4,Dc=1.323 g/cm^3,μ=0.773 mm^-1,F(000)=496.0,the final R=0.0313 and wR=0.0797 for all data.Compound 4(C17 H22 N2 O4,Mr=318.36)is of orthorhombic system,space group P212121 with a=6.5831(2),b=8.5536(2),c=28.9138(9)A,V=1628.11(8)A^3,Z=4,Dc=1.299 g/cm3,μ=0.763 mm-1,F(000)=680.0,the final R=0.0353 and wR=0.0816 for all data.
文摘研究了抗血吸虫药物吡喹酮的合成新方法。以甘氨酸乙酯盐酸盐和溴代乙醛缩二乙醇为原料,经N-烃化、N-酰化和Pictet-Spengler缩合三步反应合成出了吡喹酮。探讨了催化剂用量、缚酸剂、反应温度和酸催化剂对反应的影响。三步反应总收率为32%。产物结构经IR、1 H NMR、13C NMR、MS和HRMS确证。该方法反应条件温和,成本低,环境污染少,具有一定的工业化前景。
