39 3 |  | Vol. 39 No. 3 | 2009 6 | Jun 2009 |
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5--24--1H--3-ĺϳcˇо |
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ժҪ5--24--1H--3-ǿˎO(png)Ҫgw嶡ʼԭν(jng)^(gu)KnorrsϷÓȷVilsmeierˮⷴ4ϳĿ˻5--24--1H--3-55.4%ϳɹˇM(jn)˃(yu)mڹI(y)a(chn) |
ЈD(li)̖R914īIRaA¾̖1009-9212200903- 0040-03 |
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Study on Synthesis of 24-Dimethyl-5-formyl-1H-pyrrole-3-carboxylic Acid |
LIU Xiang-yu12DU Huan-da3WANG Lin1WANG YU-ling1LIU Ya-ru1MENG Fan-hao*1
1. School of PharmacyChina Medical UniversityShenyang 110001China2. Zhejiang Apeloa Kangyu Pharmaceutical Co.LtdJinhua 322118China3. Hangzhou Heta Pharm&Chem Co.LtdHangzhou 310030China |
Abstract24-Dimethyl-5-formyl-1H-pyrrole-3-carboxylic acid is an important intermediate of sunitinib malateSutent. It was synthesized from t-butyl acetoacetate via the reactions of Knorr condensationdecarboxylationVilsmeier reaction and hydrolyzation. The overall yield was 55.4%. The factors influencing on the synthetic process were investigated and the optimum conditions were obtained. This was a promising industrial synthetic route |
Key wordsintermediate24-dimethyl-5-formyl-1H-pyrrole-3-carboxylic acidSunitinib malatesynthesis |
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Ŀ|ʡˎԴ^(chung )оn}Y2006226031-221
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ߺ(jin)飺 1982-||Tʿоˎϳcˇо
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(lin) ϵ ˣϷƣ1965-E-mailfhmeng@cmu.edu.cn
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ոڣ 2009-05-1
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