Results 61 to 70 of about 70,439 (171)
Octacycles and Nonacycles from 3Hydroxy-2,2-bisindole
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.
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
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
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
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
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
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
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
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
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

