申请人:Merck & Co., Inc.
公开号:US04745188A1
公开(公告)日:1988-05-17
Disclosed is a process for preparing 3- and 6-substituted-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acids: ##STR1## wherein: X is a leaving group such as chloro, bromo, tosyl, mesyl or the like; and R.sup.6, R.sup.7 and R.sup.8 are, inter alia, independently selected from the group consisting of hydrogen, alkyl, alkenyl, aryl and aralkyl. Such compounds (I), as well as their pharmaceutically acceptable salt, ester and amide derivatives, are useful as antibiotics.
揭示了一种制备3-和6-取代-7-氧代-1-氮杂双环[3.2.0]庚-2-烯-2-羧酸的过程:其中:X是氯、溴、对甲苯磺酰基、甲磺酰基或类似物等离去基团;而R.sup.6、R.sup.7和R.sup.8等独立地选择自氢、烷基、烯基、芳基和芳基烷基等组成的群体。这些化合物(I)及其药用可接受的盐、酯和酰胺衍生物作为抗生素是有用的。