Approaches to the regiospecific synthesis of Anthracycline antibiotics
作者:Jack E. Baldwin、Algis J. Rajeckas
DOI:10.1016/0040-4020(82)80196-8
日期:1982.1
Synthetic approaches to anthracyclineantibiotics were studied through the use of Claisen rearrangements on 1-methallyloxy-5-methoxyantraquinone (9) which required reducing conditions to proceed through a hydroquinone intermediate in situ. 1-(2′-Methylene-4′-pentenoxy)-5-methoxyanthraquinone (13) underwent a similar reductive rearrangement but also produced a spiro compound 16 as a result of an ene