AIM:To simplify the procedure for synthesis of 2′ acetyl 12 hydroxy 2,3,10,11 dianhydro 6 O methyl erythromycin A(7). METHOD:Selective removal of the cladinose residue of clarithromycin was accomplished by the treatm...AIM:To simplify the procedure for synthesis of 2′ acetyl 12 hydroxy 2,3,10,11 dianhydro 6 O methyl erythromycin A(7). METHOD:Selective removal of the cladinose residue of clarithromycin was accomplished by the treatment with aqueous HCl at room temperature. Acetylation with acetic anhydride/triethylamine in methylene chloride provided the 2′ protected macrolide(9) with high yield. Then 2′ acetyl 12 hydroxy 2,3,10,11 dianhydro 6 O methyl erythromycin A(7) was synthesized from 9 which was treated with excess p toluenesulfonic acid and triethyl orthoformate at 50 ℃ in acetone.RESULT:The overall yield was 27%. The structure of the product was confirmed by IR,MS,NMR and elemental analysis. CONCLUSION: Our synthetic procedure of 7 was shorter and more convenient than that reported by Abbott Laboratories.展开更多
目的探讨加味黄连温胆汤对2型糖尿病痰湿互结症患者血糖及白介素-6(IL-6)、白介素-10(IL-10)、白介素-12(IL-12)水平的影响。方法采取随机数字表法将2019年5月至2020年5月云南省昆明市西山区第二人民医院收治的120例2型糖尿病痰湿互结...目的探讨加味黄连温胆汤对2型糖尿病痰湿互结症患者血糖及白介素-6(IL-6)、白介素-10(IL-10)、白介素-12(IL-12)水平的影响。方法采取随机数字表法将2019年5月至2020年5月云南省昆明市西山区第二人民医院收治的120例2型糖尿病痰湿互结症患者分为对照组和试验组,每组60例。给予对照组患者二甲双胍治疗,给予试验组患者加味黄连温胆汤联合二甲双胍治疗,两组患者均进行为期1个月的治疗。将两组患者治疗后临床疗效进行对比;将两组患者治疗前后形体学指标、血糖水平、炎性因子水平进行对比。结果试验组患者治疗后临床总有效率显著高于对照组;治疗后试验组患者腰围/臀围(WHR)、HbAlc水平及两组患者体质量指数(BMI)、空腹血糖(FBG)、餐后2 h血糖(2 h PG)、IL-6、IL-12水平均较治疗前显著降低,且试验组显著低于对照组;两组患者IL-10水平均较治疗前显著上升,且试验组显著高于对照组(均P<0.05)。结论在2型糖尿病痰湿互结症患者中使用加味黄连温胆汤治疗,有利于提高治疗效果,控制血糖水平,改善形体学指标,减轻炎性损伤。展开更多
文摘AIM:To simplify the procedure for synthesis of 2′ acetyl 12 hydroxy 2,3,10,11 dianhydro 6 O methyl erythromycin A(7). METHOD:Selective removal of the cladinose residue of clarithromycin was accomplished by the treatment with aqueous HCl at room temperature. Acetylation with acetic anhydride/triethylamine in methylene chloride provided the 2′ protected macrolide(9) with high yield. Then 2′ acetyl 12 hydroxy 2,3,10,11 dianhydro 6 O methyl erythromycin A(7) was synthesized from 9 which was treated with excess p toluenesulfonic acid and triethyl orthoformate at 50 ℃ in acetone.RESULT:The overall yield was 27%. The structure of the product was confirmed by IR,MS,NMR and elemental analysis. CONCLUSION: Our synthetic procedure of 7 was shorter and more convenient than that reported by Abbott Laboratories.
文摘目的探讨加味黄连温胆汤对2型糖尿病痰湿互结症患者血糖及白介素-6(IL-6)、白介素-10(IL-10)、白介素-12(IL-12)水平的影响。方法采取随机数字表法将2019年5月至2020年5月云南省昆明市西山区第二人民医院收治的120例2型糖尿病痰湿互结症患者分为对照组和试验组,每组60例。给予对照组患者二甲双胍治疗,给予试验组患者加味黄连温胆汤联合二甲双胍治疗,两组患者均进行为期1个月的治疗。将两组患者治疗后临床疗效进行对比;将两组患者治疗前后形体学指标、血糖水平、炎性因子水平进行对比。结果试验组患者治疗后临床总有效率显著高于对照组;治疗后试验组患者腰围/臀围(WHR)、HbAlc水平及两组患者体质量指数(BMI)、空腹血糖(FBG)、餐后2 h血糖(2 h PG)、IL-6、IL-12水平均较治疗前显著降低,且试验组显著低于对照组;两组患者IL-10水平均较治疗前显著上升,且试验组显著高于对照组(均P<0.05)。结论在2型糖尿病痰湿互结症患者中使用加味黄连温胆汤治疗,有利于提高治疗效果,控制血糖水平,改善形体学指标,减轻炎性损伤。