The asymmetric synthesis of (-)-quinocarcin via a 1,3-dipolar cycloadditive strategy
作者:Philip Garner、Wen Bin Ho、Hunwoo Shin
DOI:10.1021/ja00076a036
日期:1993.11
Details of the asymmetric synthesis and complete structure elucidation of (-)-quinocarcin (1), an antitumor antibiotic that inhibits DNA (and in some systems RNA) synthesis, are reported. Key steps in the synthesis include the use of an auxiliary-controlled 1,3-dipolar cycloaddition reaction (24+25→26) as well as an unprecedented intramolecular imide olefination (30→31) to assemble the 3,8-diazabicyclo[3