4-羟基-3-甲基-5-硝基苯甲醛置于sodium Dithionite,氨,双氧水,Sodium Hydride,Potassium Carbonate,Sodium Hydroxide体系中,用 甲醇,乙醇,水,N,N-二甲基甲酰胺,Mineral Oil 作为反应溶剂,化学反应 45.75H,反应生成 替米沙坦甲酯
参考文献:Highly Practical And Cost-Efficient Synthesis Of Telmisartan: An Antihypertensive Drug
标题:Highly Practical And Cost-Efficient Synthesis Of Telmisartan: An Antihypertensive Drug
摘要:A Novel And Cost-Efficient Strategy For Synthesis Of An Antihypertensive Drug Telmisartan,A Substituted Bis-Benzimidazole Derivative,Is Described. The Key Strategy Is The Construction Of Bis-Benzimidazole 4 By Reductive Cyclization Of O-Nitroanilines 11 With Butyl Aldehyde And Cyclocondensation Of Aromatic Aldehydes 9 With O-Phenylenediamine,Then N-Alkylation Is Allowed To Give The Target Compound Telmisartan After Hydrolysis. The Simple Operation And Workup Procedure,Along With The Low Production Costs,Make It Suitable For Industrial Production And Will Benefits Those With Cardiovascular Disease. (C) 2012 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Tet.2012.01.056