申请人:Merck & Co., Inc.
公开号:US04309346A1
公开(公告)日:1982-01-05
Disclosed is a process for the total synthesis of 1-carbapenem antibiotics (I) from L-aspartic acid via intermediates II and III: ##STR1## wherein R is hydrogen, a pharmaceutically acceptable ester moiety or salt cation, or a readily removable blocking group; R.sup.6 and R.sup.7 are, inter alia, independently selected from the group consisting of hydrogen, alkyl, alkenyl, aryl and aralkyl; R.sup.1' is hydrogen or a protecting group; and R.sup.a, R.sup.b and R.sup.c are independently selected from alkyl, aryl and aralkyl.
揭示了一种从L-天冬氨酸经过中间体II和III全合成1-卡巴比林类抗生素(I)的过程:其中R为氢、药用可接受的酯基或盐阳离子,或易于去除的阻断基;R.sup.6和R.sup.7等独立地选自包括氢、烷基、烯基、芳基和芳基烷基在内的群;R.sup.1'为氢或保护基;R.sup.a、R.sup.b和R.sup.c独立地选自烷基、芳基和芳基烷基。