A Desymmetrization Approach toward Highly Oxygenated <i>cis</i>-Decalins
作者:Alexey Gromov、Valentin Enev、Johann Mulzer
DOI:10.1021/ol900834c
日期:2009.7.2
The cis-decalin core 2 of the antibiotic branimycin has been prepared by desymmetrization of diepoxynaphthalene 4. The key steps involve two successive S(N)' opening of the oxa-bridges. An improved procedure for the synthesis of 4 is also described.
Improved Synthesis of Parent Fused 7-Oxanorbornenes
作者:Alexey Gromov、Valentin Enev、Johann Mulzer
DOI:10.1080/00397910902953323
日期:2009.12.15
The synthesis of parent fused 7-oxanorbornenes 1 and 2 based on double Diels-Alder reaction of methyl propiolate with furan followed by saponification and reductive Barton decarboxylation is described.