Indole alkaloids are the chemotaxonomic markers of the Aspidosperma genera. Those that have the simplest plumeran skeleton are classified as the precursors of biosynthetic routes and the intermediates for several synthetic reactions. This work aims to review the 1H and 13C-NMR data, up to 2011, describing the skeleton of 35 different plumeran indole alkaloids, from a group of 46 of them, and highlight the main spectral differences amongst them
1D and 2D NMR techniques were used to assign fully the spectra of three aspidofractinine alkaloids, ...
The aerial parts of Andrachne aspera belonging to the family Euphorbiaceae yielded four new piperidi...
This review discusses the isolation, structural elucidation, and biological activities of halogenate...
Two novel indole alkaloids with plumeran skeleton, spruceanumines A (1) and B (2), and eight known i...
Two novel indole alkaloids with plumeran skeleton, spruceanumines A (1) and B (2), and eight known i...
Isojuripidina, um alcalóide 3-aminoespirosolano foi isolado das partes aéreas de Solanum asterophoru...
13C NMR spectra of seven tertiary and quaternary indole alkaloids are recorded and the signals assig...
The genus Psychotria (Rubiaceae) comprises more than 2000 species, mainly found in tropical and subt...
The genus Psychotria (Rubiaceae) comprises more than 2000 species, mainly found in tropical and subt...
Two new indole alkaloids, 10-methoxy-yohimbine and 10-methoxy-4-methylgeissoschizol, and the known c...
Isojuripidine was isolated from the aerial parts of Solanum astherophorum Mart. Its structure was de...
The structures of the six norditerpenoid alkaloids listed in the title have been reported to contain...
The structures of the six norditerpenoid alkaloids listed in the title have been reported to contain...
A new indole alkaloid, 12-hydroxy-N-acetyl-21(N)-dehydroplumeran-18-oic acid (13), and 11 known indo...
A new indole alkaloid, 12-hydroxy-N-acetyl-21(N)-dehydroplumeran-18-oic acid (13), and 11 known indo...
1D and 2D NMR techniques were used to assign fully the spectra of three aspidofractinine alkaloids, ...
The aerial parts of Andrachne aspera belonging to the family Euphorbiaceae yielded four new piperidi...
This review discusses the isolation, structural elucidation, and biological activities of halogenate...
Two novel indole alkaloids with plumeran skeleton, spruceanumines A (1) and B (2), and eight known i...
Two novel indole alkaloids with plumeran skeleton, spruceanumines A (1) and B (2), and eight known i...
Isojuripidina, um alcalóide 3-aminoespirosolano foi isolado das partes aéreas de Solanum asterophoru...
13C NMR spectra of seven tertiary and quaternary indole alkaloids are recorded and the signals assig...
The genus Psychotria (Rubiaceae) comprises more than 2000 species, mainly found in tropical and subt...
The genus Psychotria (Rubiaceae) comprises more than 2000 species, mainly found in tropical and subt...
Two new indole alkaloids, 10-methoxy-yohimbine and 10-methoxy-4-methylgeissoschizol, and the known c...
Isojuripidine was isolated from the aerial parts of Solanum astherophorum Mart. Its structure was de...
The structures of the six norditerpenoid alkaloids listed in the title have been reported to contain...
The structures of the six norditerpenoid alkaloids listed in the title have been reported to contain...
A new indole alkaloid, 12-hydroxy-N-acetyl-21(N)-dehydroplumeran-18-oic acid (13), and 11 known indo...
A new indole alkaloid, 12-hydroxy-N-acetyl-21(N)-dehydroplumeran-18-oic acid (13), and 11 known indo...
1D and 2D NMR techniques were used to assign fully the spectra of three aspidofractinine alkaloids, ...
The aerial parts of Andrachne aspera belonging to the family Euphorbiaceae yielded four new piperidi...
This review discusses the isolation, structural elucidation, and biological activities of halogenate...