An Efficient Access to Novel Enantiomerically Pure Steroidal δ-Amino Acids
作者:Hans Wolf Sünnemann、Anja Hofmeister、Jörg Magull、Armin de Meijere
DOI:10.1002/chem.200601076
日期:2006.11.6
%). Tetracycles cis-7 a-c are the products of a subsequent 1,5-hydrogen shift to the thermodynamically more stable, more highly substituted diene units. Removal of the tert-butyl groups provided the novel steroidal delta-amino acid 9 a and the delta-amino acid derivatives 9 b, c in good yields (76-86 %).