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Paper | Regular issue | Vol 27, No. 8, 1988, pp.1887-1897
Published online, 1st January, 1970
DOI: 10.3987/COM-88-4562
Tropane Alkaloids from Schizanthus pinnatus

Gabriel de la Fuente,* Matías Reina, Orlando Muñoz, Aurelio San Martín, and Jean-Pierre Girault

*Centro de Productos Naturales Orgánicos "Antonio González", Universidad de La Laguna, Avda. Astrofísico Franciso Sánchez, 2, 38206- La Laguna, Tenerife, Spain


From Schizanthus pinnatus Ruiz et Pav. we have isolated seven new tropon-3α,6β-diol diesters, schizanthines F (1), G (2), H (3), I (4), K (8), L (9), and M (10), together with tropine, (-)-6β-angeloyloxytropan-3α-ol (5), (-)-6β-tigloyloxytropan -3α-ol (6), and (-)-3α-senecioyloxytropan-6β-ol (7). The structures of the new alkaloids were determined mainly by spectroscopic methods comprising 2-D and 1-D nmr long-range heteronuclear correlations.