申请人:Pfizer Inc.
                            
                            
                                公开号:US04025504A1
                            
                            
                                公开(公告)日:1977-05-24
                            
                            6-[.alpha.-(Amidino- and imidoylaminoalkanoylamino)aracylamino]-penicillanic acids and synthetic methods for the preparation thereof.
                            6- [α-(Amidino-和imidoylaminoalkanoylamino)aracylamino] -青霉烷酸及其制备的合成方法。