Studies in marine macrolide synthesis: Stereocontrolled synthesis of the F-ring subunit of spongistatin 1 (altohyrtin A)
作者:Ian Paterson、Linda E Keown
DOI:10.1016/s0040-4039(97)01257-4
日期:1997.8
The C36C46 subunit 3, containing the F ring of spongistatin 1 (1), was prepared in 12 steps from ketone (R)-7. Key steps include: (i) the boron-mediated anti aldol reaction, 7 → 9; (ii) the Sharpless AD, 6 → 13; and (iii) an intramolecular hetero-Michael addition, followed by base-promoted equilibration to give 3.
的C 36 C 46亚基3,含有海绵抑制素1(的F环1),在12个步骤制备由酮(R)-7 。关键步骤包括:(i)硼介导的抗羟醛反应7 → 9;(ii) Sharpless AD,6 → 13;和(ⅲ)的分子内异Michael加成,接着碱促进的平衡,得到3。