Results 61 to 70 of about 70,439 (171)

Octacycles and Nonacycles from 3Hydroxy-2,2-bisindole

open access: yes, 2021
3-Hydroxy-2,2′-bisindole undergoes acid- and base-mediated dimerization–skeletal rearrangement processes, generating polyheterocyclic ring systems containing up to nine rings.
Jonathan Sperry (619935)   +5 more
core   +1 more source

Cytotoxic Bisindole Alkaloids from a Marine Sponge Spongosorites sp.

open access: yes, 2016
Three new bisindole alkaloids of the hamacanthin class (1−3) and one new bisindole alkaloid of the topsentin class (6) were isolated along with known bisindole alkaloids (4, 5, 7−11) from the MeOH extract of a marine sponge Spongosorites sp.
Qishi Sun (2681866)   +7 more
core   +1 more source

Ibogan, Aspidosperman, Vincamine, and Bisindole Alkaloids from a Malayan Tabernaemontana corymbosa: Iboga Alkaloids with C‑20α Substitution

open access: yes, 2016
Ten new indole alkaloids (1–10) comprising five ibogan, two aspidosperman, one vincamine, and two bisindole alkaloids, in addition to 32 known alkaloids, were isolated from the stem-bark extract of a Malayan Tabernaemontana corymbosa.
Kam-Weng Chong (1715197)   +5 more
core   +3 more sources

Macroline–sarpagine and macroline–pleiocarpamine bisindole alkaloids from Alstonia angustifolia

open access: yes, 2012
Nine bisindole alkaloids, comprising four belonging to the macroline–sarpagine group, and five belonging to the macroline–pleiocarpamine group, were isolated from the stem-bark extracts of Alstonia angustifolia(Apocynacea).
Lim, K.H.   +3 more
core   +1 more source

Angustifonines A and B, Cytotoxic Bisindole Alkaloids from Bousigonia angustifolia

open access: yes, 2016
Two new bisindole alkaloids, angustifonines A (1) and B (2), comprising the union of a rearranged monoterpenoid quinoline and an aspidospermine alkaloid, as well as 27 known indole alkaloids were isolated from the twigs and leaves of Bousigonia ...
Yu Zhang (12946)   +5 more
core   +1 more source

Conolodinines A–D, Aspidosperma–Aspidosperma Bisindole Alkaloids with Antiproliferative Activity from Tabernaemontana corymbosa

open access: yes, 2019
Examination of the EtOH extract of the leaves of the Malayan Tabernaemontana corymbosa resulted in the isolation of four new (1-4) and two known bisindole alkaloids (5, 6) of the Aspidosperma-Aspidosperma type.
Sim, Dawn Su Yin   +6 more
core   +2 more sources

Marine bisindole alkaloid: A potential apoptotic inducer in human cancer cells

open access: yesEuropean Journal of Histochemistry, 2018
Marine organisms such as corals, sponges and tunicates produce active molecules which could represent a valid starting point for new drug development processes. Among the various structural classes, the attention has been focused on 2,2-bis(6-bromo-3-indolyl) ethylamine, a marine alkaloid which showed a good anticancer activity against several tumor ...
S. Salucci   +8 more
openaire   +4 more sources

Synthesis of Topsentin‐A, A Bisindole Alkaloid of the Marine Sponge Topsentia genitrix

open access: yesBulletin des Sociétés Chimiques Belges, 1987
AbstractThe synthesis of topsentin‐A, a bisindole alkaloid isolated from the maring sponge Topsentia genitrix, has been achieved starting from 3‐acetylindole.
Braekman, Jean Claude   +2 more
openaire   +3 more sources

Image_5_CrERF5, an AP2/ERF Transcription Factor, Positively Regulates the Biosynthesis of Bisindole Alkaloids and Their Precursors in Catharanthus roseus.tif

open access: yes, 2019
Catharanthus roseus contains a variety of monoterpenoid indole alkaloids (MIAs), among which bisindole alkaloids vinblastine and vincristine are well-known to have antitumor effects and widely used in clinical treatment.
Hang Wang (137566)   +9 more
core   +1 more source

Image_2_CrERF5, an AP2/ERF Transcription Factor, Positively Regulates the Biosynthesis of Bisindole Alkaloids and Their Precursors in Catharanthus roseus.pdf

open access: yes, 2019
Catharanthus roseus contains a variety of monoterpenoid indole alkaloids (MIAs), among which bisindole alkaloids vinblastine and vincristine are well-known to have antitumor effects and widely used in clinical treatment.
Hang Wang (137566)   +9 more
core   +1 more source

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