lactam

1.D-phenylglycine is the important medicinal intermediate products of β-lactam antibiotics.

苯甘氨酸是β-内酰类半合成抗生的重要中间体。

2.The penem antibiotics are a series of unclassical β-lactam antibiotics including thio-substituted, carbon-substituted, heterocycle-substituted penems and the β-lactamase inhibitors.

青霉烯是一类非典型β-内酰类抗生,能用于治疗由多种耐药菌引起的重症感染。