Efficient Synthesis of a Key Intermediate of DV-7751 via Optical Resolution or Microbial Reduction.
作者:Akihiko MIYADERA、Koji SATOH、Akihiro IMURA
DOI:10.1248/cpb.48.563
日期:——
synthesis of the C-10 substituent of DV-7751 (1), a novel quinolone carboxylic acid, were established. The first method utilizes an opticalresolution of racemic 8-amino-6-benzyl-6-azaspiro[3.4]octane (13), while the second employs an enantioselective microbialreduction of 6-benzyl-5,8-dioxo-6-azaspiro[3.4]octane (8b). The enantiomeric excess of (S)-8-amino-6-benzyl-6-azaspiro[3.4]octane (11) with each