Total Synthesis of Peloruside A through Kinetic Lactonization and Relay Ring-Closing Metathesis Cyclization Reactions
作者:Thomas R. Hoye、Junha Jeon、Lucas C. Kopel、Troy D. Ryba、Manomi A. Tennakoon、Yini Wang
DOI:10.1002/anie.201002293
日期:2010.8.16
The other side: A convergent total synthesis of peloruside A (1) is described. The key strategic features are a diastereoselective lactonization to generate a C5–C9 valerolactone from the C2‐symmetric ketone 3, and a relay ring‐closing metathesis reaction to produce a dehydrovalerolactone 2. A new isomer of 1, the valerolactone isopeloruside A (iso‐1), was identified. MOM=methoxymethyl.
另一方面:描述了peloruside A( 1 )的收敛全合成。关键的策略特征是非对映选择性内酯化从C 2对称酮3生成 C5-C9 戊内酯,以及中继闭环复分解反应生成脱氢戊内酯2。鉴定了1的新异构体,即异戊内酯异戊内酯 A ( iso-1 )。MOM=甲氧基甲基。