The isolation from Nicandra physalodes and identification of the 3-O-β-D-glucopyranoside of 1α,2β,3α,6α-tetrahydroxy-nor-tropane (Calystegine B1)

The isolation from Nicandra physalodes and identification of the 3-O-β-D-glucopyranoside of 1α,2β,3α,6α-tetrahydroxy-nor-tropane (Calystegine B1) Dihydroxynortropane alkaloids from calystegine-producing plants Calystegin N1, a novel nortropane alkaloid with a bridgehead amino group from Hyoscyamus niger: structure determination and glycosidase inhibitory activities Calystegine B4, a novel trehalase inhibitor from Scopolia japonica Calystegine alkaloids from Duboisia leichhardtii Calystegine alkaloids from Duboisia leichhardtii Calystegines as a new group of tropane alkaloids in Solanaceae A new nicotinoyl glucoside from Cryptolepis buchanani Structure of the Calystegines: New alkaloids of the nortropane family. Studies on the Alkaloids of the Root of Physalis alkekengi. (1). Isolation of 3α-Tigloyloxytropane