Abstract
Two new diterpene glycosides containing 20-hydroxygeranyllinalool were isolated and identified from Nicotiana tabacum. These compounds consisted of five molecules of glucose and/or rhamnose. The locations of the aglycone and glycosides in the molecules were determined by 2D-NMR with the HMBC technique. The structures were (6E, 10E, 14Z)-20-hydroxygeranyllinalyl-3-O-[α-L-rhamnopyranosyl (1→4)]-β-D-glucopyranoside-20-O-[β-D-glucopyranosyl (1→2)]-[α-L-rhamnopyranosyl (1→6)]-β-D-glucopyranoside and (6E, 10E, 14Z)-20-hydroxygeranyllinalyl-3-O-[α-L-rhamnopyranosyl (1→4)]-β-D-glucopyranoside-20-O-[α-L-rhamnopyranosyl (1→4)]-[α-L-rhamnopyranosyl (1→6)]-β-D-glucopyranoside.
