Syntheses of (−)-TAN-2483A, (−)-Massarilactone B, and the Fusidilactone B Ring System. Revision of the Structures of and Syntheses of (±)-Waol A (FD-211) and (±)-Waol B (FD-212)
作者:Xiaolei Gao、Barry B. Snider
DOI:10.1021/jo0358628
日期:2004.8.1
completes the three-step syntheses of TAN-2483A (5) and waol A (6). Aldol reaction of hydroxybutanolide 31 with 2,4-hexadienal affords 32, which is subjected to iodoetherification to provide 34, which in turn is treated with Bu3SnCl, NaBH3CN, and oxygen to provide diol 60. Further elaboration completes the first syntheses of massarilactone B (7) and the fusidilactone B (9) ring system.
尾醇A的结构已从TAN-2483A(5)的黑胶版本从1修改为6。羟基丁醇化物13b,c与2,4-己二醛的醛醇缩合反应得到12b,c,将其与双(对称-可力丁)IPF 6进行碘醚化以提供11b(c)。在CH 2 Cl 2中用Et 3 N处理完成了TAN-2483A(5)和waol A(6)的三步合成。羟基丁醇化物31与2,4-己二醛的醛醇缩合反应得到将其进行碘醚化反应得到32,得到34,然后将其用Bu 3 SnCl,NaBH 3 CN和氧气处理以得到二醇60。进一步的阐述完成了马萨里内酯B(7)和泛二内酯B(9)环系统的第一个合成过程。