Azetidinone als Zwischenprodukte für Carbacephalosporine und Verfahren.
摘要
<p>7 beta -Amino-3-hydroxy-1-carba(1-dethia)-3-cephem-4-carboxylic acid esters are provided via cyclization of cis-3-(substituted amino)-1-(2-substituted 2-oxoethyl)-4-azetidin-2-one propanoic acid esters. The 7 beta -amino-3-hydroxy-1-carba(1-dethia)-3-cephem-4-carboxylic acid esters are useful chiral intermediates to beta -lactam antibiotics.</p>
申请公布号
DE68916504(D1)
申请公布日期
1994.08.04
申请号
DE1989616504
申请日期
1989.10.09
申请人
ELI LILLY AND CO., INDIANAPOLIS, IND., US
发明人
GARDNER, JOHN PAUL, INDIANAPOLIS INDIANA 46256, US;JACKSON, BILLY GRINNELL, INDIANAPOLIS INDIANA 46208, US;AIKINS, JAMES, INDIANAPOLIS INDIANA 46256, US;TAO, EDDIE V., INDIANAPOLIS INDIANA 46260, US
