Dehydroamino acid derivatives from D-arabinose and L-serine: synthesis of models for the azinomycin antitumor antibiotics
摘要:
Synthesis of aldehydes 17 from D-arabinose and 31 from L-serine provided key precursors for the generation of highly functionalized dehydroamino acid derivatives upon condensation with glycyl phosphonates. Subsequent bromination and intramolecular addition/elimination afforded the azabicyclo[3.1.0]hex-2-ylidene ring system postulated to exist in the azinomycin antitumor antibiotics.
KOBER, R.;STEGLICH, W., LIEBIGS ANN. CHEM., 1983, N 4, 599-609
作者:KOBER, R.、STEGLICH, W.
DOI:——
日期:——
Stereoselective synthesis of (E)- and (Z)-1-azabicyclo[3.1.0]hex-2-ylidene dehydroamino acid derivatives
作者:Robert W. Armstrong、John E. Tellew、Edmund J. Moran
DOI:10.1021/jo00034a002
日期:1992.4
Bromination of dehydroamino acid derivatives with NBS or Br2/2,6-lutidine yields (E)- or (Z)-beta-bromo-dehydroamino acid derivatives selectively. Subsequent intramolecular Michael addition-elimination of an aziridine proceeds with complete retention of olefin geometry to provide the 1-azabicyclo[3.1.0]hex-2-ylidene ring system proposed for the azinomycin series of antitumor antibiotics.