申请人:Queen's University at Kingston
公开号:US04013653A1
公开(公告)日:1977-03-22
The present invention relates to novel 1-oxacephems of the formula ##STR1## wherein R.sup.9 is hydrogen and R.sup.8 is hydrogen or RCO- wherein R is selected from the group consisting of lower alkyl ##STR2## wherein Ar is a monovalent radical selected from the group consisting of ##STR3## wherein R.sub.1, R.sub.2 and R.sub.3 are each a member selected from the group consisting of hydrogen, chloro, bromo, iodo, trifluoromethyl, phenyl, lower-alkyl and lower alkoxy, but only one of said R.sub.1, R.sub.2 and R.sub.3 may represent phenyl; R.sup.4 is hydrogen, amino, carbobenzoxyamino, phenyl, fluoro, chloro, bromo, iodo, carboxyl, SO.sub.3 H, azido, hydroxy, loweralkanoyloxy or loweralkoxy; X is oxygen or sulfur; R.sup.5 and R.sup.6 are hydrogen, phenyl, benzyl, phenethyl or loweralkyl; Z.sup.1, z.sup.2 and Z.sup.3 are loweralkyl or the Ar- group; R.sup.12 is 2,2,2-trichloroethyl or benzyl; Provided that when R.sup.8 and R.sup.9 are taken together with the nitrogen to which they are attached, they form a phthalimido moiety; R.sup.7 is methyl or hydroxy; and R.sup.1 is hydrogen, loweralkyl, benzyl, benzhydryl, loweralkoxyloweralkyl, loweralkoxybenzyl, phenacyl, trimethylsilyl, 2,2,2-trichloroethyl, or pivaloyloxy.
本发明涉及一种新型的1-氧代头孢菌素,其化学式为其中R.sup.9为氢,R.sup.8为氢或RCO-,其中R选自较低烷基组成的群,其中Ar为选自的单价基团其中R.sub.1、R.sub.2和R.sub.3分别为选自氢、氯、溴、碘、三氟甲基、苯基、较低烷基和较低烷氧的群成员,但其中的一个R.sub.1、R.sub.2和R.sub.3可能代表苯基;R.sup.4为氢、氨基、羧苄氨基、苯基、氟、氯、溴、碘、羧基、SO.sub.3 H、叠氮基、羟基、较低烷酰氧基或较低烷氧基;X为氧或硫;R.sup.5和R.sup.6为氢、苯基、苄基、苯乙基或较低烷基;Z.sup.1、z.sup.2和Z.sup.3为较低烷基或Ar-基团;R.sup.12为2,2,2-三氯乙基或苄基;但当R.sup.8和R.sup.9与它们连接的氮一起时,它们形成邻苯二甲酰亚胺基团;R.sup.7为甲基或羟基;R.sup.1为氢、较低烷基、苯基、苄基、较低烷氧基较低烷基、较低烷氧基苄基、苯乙酰基、三甲基硅基、2,2,2-三氯乙基或戊酰氧基。