| 摘要 |
<p>The invention discloses a N-(2-1-hydroxyethyl)-3-oxopropyl(amine of formula (III( (See Formula); wherein B ring represents a benzene ring which can be substituted; W represents an oxygen atom or a sulfide atom; Y represents oxygen atoms, sulfide atoms or NR??, R?? represent hydrogen atom, or a substituted; Z represents a substituted methylene group containing at least a chiral center; R5 represents an aralkyloxycarbonyl group or an alkoxycarbonyl; r6 represent hydrogen atom, an aralkyl group, an aciloxy group, a three-substituted sililoxy group or an alkoxy group; or both R5 and R6 are linked by their ends and they are combined with adjacent nitrogen atom to form phthalimide group, and a process therefrom are described; said compound (III( is useful as a beta-lactama antibacterial agent starting compound.</p> |
