• We report an intramolecular conjugate addition/Truce-Smiles/E1cb cascade of 2-nitrobenzenesulfonamide-functionalized cyclohexenones as a new entry to the core scaffold of monoterpene indole alkaloids. (bvsalud.org)
  • Mechanism and evolution of [4+2] cyclases in monoterpene indole alkaloid biosynthesis. (mpg.de)
  • 3. Conolodinines A-D, Aspidosperma- Aspidosperma Bisindole Alkaloids with Antiproliferative Activity from Tabernaemontana corymbosa. (nih.gov)
  • 5. Ibogan, tacaman, and cytotoxic bisindole alkaloids from tabernaemontana. (nih.gov)
  • 6. Ibogan, Aspidosperman, Vincamine, and Bisindole Alkaloids from a Malayan Tabernaemontana corymbosa: Iboga Alkaloids with C-20α Substitution. (nih.gov)
  • 7. Taburnaemines A-I, Cytotoxic Vobasinyl-Iboga-Type Bisindole Alkaloids from Tabernaemontana corymbosa. (nih.gov)
  • 9. Bisindole alkaloids from Tabernaemontana corymbosa. (nih.gov)
  • 11. Cytotoxic vobasine, tacaman, and corynanthe-tryptamine bisindole alkaloids from Tabernaemontana and structure revision of tronoharine. (nih.gov)
  • 17. Ajmaline, Oxindole, and Cytotoxic Macroline-Akuammiline Bisindole Alkaloids from Alstonia penangiana. (nih.gov)
  • 18. New vobasinyl-ibogan type bisindole alkaloids from Tabernaemontana corymbosa. (nih.gov)
  • 19. Monoterpenoid Bisindole Alkaloids. (nih.gov)
  • These two bis(indole) alkaloids were isolated from the leaves of Tabernaemontana divaricata and have interesting biological characteristics. (chemistryviews.org)
  • 2. Biscarpamontamines A and B, an aspidosperma-iboga bisindole alkaloid and an aspidosperma-aspidosperma bisindole alkaloid, from Tabernaemontana sphaerocarpa. (nih.gov)
  • 8. Jerantinines A-G, cytotoxic Aspidosperma alkaloids from Tabernaemontana corymbosa. (nih.gov)
  • 16. Tabercarpamines A-J, apoptosis-inducing indole alkaloids from the leaves of Tabernaemontana corymbosa. (nih.gov)
  • 20. Vobasinyl-Iboga Alkaloids from Tabernaemontana elegans: Cell Cycle Arrest and Apoptosis-Inducing Activity in HCT116 Colon Cancer Cells. (nih.gov)
  • The method was applied to the asymmetric total synthesis of (-)-limaspermidine, (-)-kopsinilam, and (-)-kopsinine, as well as the framework of the kopsifoline alkaloids, thus highlighting its complementarity to existing approaches involving the use of indole-based starting materials or the interrupted Fischer indole synthesis. (bvsalud.org)
  • These complex polycyclic scaffolds are valuable building blocks for the construction of indole alkaloids, as showcased in a concise total synthesis of (±)-akuammicine. (bvsalud.org)
  • Their highly convergent synthesis features the regio- and diastereoselective Polonovski-Potier-type reaction for the coupling of two pentacyclic aspidosperma skeletons and the formation of the dihydrofuran ring. (chemistryviews.org)
  • 15. Criofolinine and vernavosine, new pentacyclic indole alkaloids incorporating pyrroloazepine and pyridopyrimidine moieties derived from a common yohimbine precursor. (nih.gov)