The structure of dictyocarpine

The Molecular Structures of Browniine Perchlorate and Dictyocarpine-Acetone Complex

“…Because the structure of the alkaloid dicytocarpine (5) (7,8) depends on correlation with lycoctonine via a long sequence involving dictyocarpinine, 6,10-dimethyldeltamine, deltamine, delatine, delpheline, 6-0-methyldelpheline, and deoxylycoctonine (9, 10), we have confirmed the structure and stereochemistry of dictyocarpine by an Xray analysis of its acetone complex. Both browniine and dictyocarpine possess a 1 otmethoxyl group.…”

Diterpenoid Alkaloids from Delphinium tatsienense

“…Previous investigations on the phytochemistry of this plant by the Pelletiers research group resulted in the isolation of more than ten diterpenoid alkaloids [6 -10]. Our present study on the whole plants of Delphinium tatsienense led to the identification of three new diterpenoid alkaloids, designated as tatsienenseines A -C (1 -3), besides twentytwo known diterpenoid alkaloids, i.e., majusine C [11], delbonine [12], 6-acetyldepheline [13] [14], deltatsine [7], browniine [15], 14-acetyldelcosine [15], 14-acetylbrowniine [15], postanisine F [16], ajacine [15], delcosine [17], leroyine 14-O-acetate [18], 7-acetylbarbaline [19], acetyldelgrandine [20], deacetylambiguine [6], ajadelphine [21], 14-deacetylnudicauline [22], delsoline [23], barbaline [19], delsemine A [23], delsemine B [23], tatsinine [23], and delgrandine [20]. These known compounds were identified by comparing their spectroscopic data with those reported in the literature.…”

19-Oxodeltaline, a norditerpene alkaloid from the aerial part of Delphinium uralense

“…A weak-field shift of the characteristic triplet for H-14E (4.13, J = 4.8 Hz) suggested that C-14 had an D-methoxyl; C-10, a E-OH group [6].…”