A process for the preparation of carbapenem-type antibacterial agents involving the following reaction:
wherein R
1
is a C
1
-C
3
alkyl group, n is 0, 1 or 2, A is a C
1
-C
3
alkylene group, L is a leaving group, R
3
is a hydrogen atom, a C
1
-C
3
alkyl group or an amino protecting group, and the hydroxyl or carboxyl groups are optionally independently protected. In such process, amine compound (1) or a salt thereof acts as a synthetic intermediate. Such process is a less expensive and highly safe synthetic route for carbapenem-type antibacterial agents suitable for large-scale synthesis.
一种制备碳青霉烯类抗菌剂的方法,包括以下反应:其中,R1是C1-C3烷基,n为0、1或2,A为C1-C3亚烷基,L为离去基团,R3为氢原子、C1-C3烷基或
氨基保护基团,羟基或羧基可以选择性地独立保护。在这种方法中,胺化合物(1)或其盐作为合成中间体。此类方法是一种成本较低且高度安全的碳青霉烯类抗菌剂的合成途径,适用于大规模合成。