小花棘豆毒性生物碱的研究

从有毒植物小花棘豆中分离并鉴定了8个生物碱成分,臭豆碱、黄华碱、N-甲基野靛碱、鹰爪豆碱、鹰靛叶碱、腺嘌呤、白藓碱和脲基甲酸乙酯。均为首次从棘豆属植物中分得,其中脲基甲酸乙酯为一新的天然产物。

Efficient synthesis of thiohydantoin derivatives from amino acid esters and isothiocyanates in alkaline Al_2O_3

Various amino acid esters were reacted with different isothiocyanates in alkaline Al2O3 at room temperature for 1 h affording thiohydantoins in moderate to excellent yields.