As a key intermediate for the synthesis of sulfazecin derivatives, 3-amino-3-methoxy-2-azetidinone (24 or 26) was synthesized from penicillins, and various new compounds, including sulfazecin, were synthesized by acylation and sulfonation of 24 or 26. Some of these compounds (33, 36) showed higher antibacterial activity than the corresponding 3-demethoxy derivatives against a β-lactamase-producing strain of Escherichia coli.
作为合成
硫氮微子衍
生物的关键中间体,3-
氨基-3-甲氧基-2-
氨基乙酰酮(24或26)是通过
青霉素合成的,随后通过对24或26进行酰化和磺化合成了各种新化合物,包括
硫氮微子。其中一些化合物(33、36)对产生β-内酰胺酶的大肠杆菌菌株表现出比相应的3-去甲氧基衍
生物更强的抗菌活性。