Hydrogenolytic transformations of 5a, 11a-epoxyhexahydronaphthacene-5,6,11,12-tetrones. Implications for the synthesis of 6-and 11-deoxyanthracyclinones
作者:Peter N. Preston、Thomas Winwick、Johh O. Morlery
DOI:10.1039/c39840000307
日期:——
Catalytic hydrogenation (H2Pd–C)of the epoxide (5a)give the dione derivative (6); an analogous procedure (5d)→(7)has been used in a sequence (5b)→(5c)→(5d)→(7)→(2d)→(2b)to give a valuable intermediate(2b)for the synthesis of 4,11-dideoxyanthracyclinones:implications for interconversions in the anthracyclinone series are described.
环氧化物(5a)的催化加氢(H 2 Pd–C )得到二酮衍生物(6);以顺序(5b)→(5c)→(5d)→(7)→(2d)→(2b)进行了类似的操作(5d)→(7),得到了有价值的中间体(2b),用于合成4,11-双脱氧蒽环素的描述:描述了蒽环素系列相互转化的意义。