有些口服降糖药的半衰期可达到60小时（氯磺丙脲）。
The half-life of some of the oral agents may be as long as 60 hours (chlorpropamide).
丙酰基二茂铁和4-取代氨基脲反应制得8个相应的缩氨基脲1～8，它们均属首次制得。
Propionyl ferrocene reacted with 4-substituted semicarbazides converted into corresponding semicarbazones 1-8, which are not prepared previously.
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