Synthesis of the Aglycones of Altromycins and Kidamycin from a Common Intermediate
作者:ZhongBo Fei、Frank E. McDonald
DOI:10.1021/ol0509742
日期:2005.8.1
The aglycone structures 1 and 2, respectively corresponding to the antitumor antibiotic natural products altromycin and kidamycin, have been efficiently synthesized from a common advanced intermediate 3. A series of Claisen condensations and aromatizations affords the anthracene section of 3, followed by annulation of the pyrone ring. The functional groups of 3 can be manipulated for enantioselective
从常见的高级中间体3有效合成了分别对应于抗肿瘤抗生素天然产物阿霉素和Kidamycin的糖苷配基结构1和2。一系列克莱森缩合和芳构化反应可得到蒽段3的蒽环,然后将吡喃酮环化戒指。可以对3个官能团进行操作,以使其对映选择性引入阿霉素糖苷配基1的环氧侧链,并合成Kidamycin糖苷配基2。