ChemInform Abstract: Calystegin N1, a Novel Nortropane Alkaloid with a Bridgehead Amino Group from Hyoscyamus niger: Structure Determination and Glycosidase Inhibitory Activities

Calystegin N1, a novel nortropane alkalo

Calystegin N1, a novel nortropane alkaloid with a bridgehead amino group from Hyoscyamus niger: structure determination and glycosidase inhibitory activities

✍ Naoki Asano; Atsushi Kato; Yoshie Yokoyama; Miwa Miyauchi; Masaru Yamamoto; Haru 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 459 KB

Seven calystegins were isolated from the whole plant of Hyoscyamus niger. They are calystegins A 3, A 5, A 6, B t , B 2, B 3, and N 1. The structure of new calystegin A 6 was determined as la,2~,7a-trihydroxy-nor-tropane, and another new calystegin N 1 was elucidated to be a trihydroxy-nor-tropane a