Highly Efficient and Practical Syntheses of Lavendamycin Methyl Ester and Related Novel Quinolindiones
作者:Mohammad Behforouz、Jalal Haddad、Wen Cai、Macklin B. Arnold、Farahnaz Mohammadi、Aron C. Sousa、Mark A. Horn
DOI:10.1021/jo960794t
日期:1996.1.1
afforded the novel 7-aminoquinoline-5,8-dione 7 in excellent yields. Due to our efficient preparation of dione 14a, we now report a short and practical method for the total synthesis of the potent antitumor agent lavendamycin methyl ester (1b) with an excellent overall yield.
新型的7-(N-甲酰基-,7-(N-乙酰基-氨基和7-(N-异丁酰氨基)-2-甲基喹啉-5,8-二酮)通过硝化三氯甲烷的三步合成法以优异的总收率合成市售8-羟基-2-甲基喹啉,然后进行还原酰化步骤,然后氧化7-(N-乙酰氨基)-2-甲基喹啉-5,8-二酮(14a)的酸水解得到了新型7-氨基喹啉- 5,8-dione 7的收率很高由于我们高效地制备了dione 14a,我们现在报告了一种短而实用的方法,可以有效地合成有效的抗肿瘤药物拉达霉素甲酯(1b),且总收率很高。