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.
本发明揭示了一种从
L-天冬氨酸通过中间体II和III全合成1-
卡那霉素类抗生素(I)的方法:其中R是氢,药学上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是独立选择自氢,烷基,烯基,芳基和芳基烷基等组成的群;R.sup.1'是氢或保护基;以及R.sup.a,R.sup.b和R.sup.c是独立选择自烷基,芳基和芳基烷基。